diff options
author | Gregory Nutt <gnutt@nuttx.org> | 2013-12-01 18:21:41 -0600 |
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committer | Gregory Nutt <gnutt@nuttx.org> | 2013-12-01 18:21:41 -0600 |
commit | 352e09485686fbe166b894a8459a5b4d9b5750b9 (patch) | |
tree | b4f8640c689cee27ebd836ecb500fcbdd9770784 | |
parent | 395d5d2b0ab5762372202ebd30aa870b5bd9d9fc (diff) | |
download | nuttx-352e09485686fbe166b894a8459a5b4d9b5750b9.tar.gz nuttx-352e09485686fbe166b894a8459a5b4d9b5750b9.tar.bz2 nuttx-352e09485686fbe166b894a8459a5b4d9b5750b9.zip |
SAMA5 NAND: Basic NAND access now work (software ECC and no DMA)
-rw-r--r-- | nuttx/arch/arm/src/sama5/sam_nand.c | 47 | ||||
-rw-r--r-- | nuttx/arch/arm/src/sama5/sam_nand.h | 15 | ||||
-rw-r--r-- | nuttx/configs/sama5d3x-ek/README.txt | 2014 | ||||
-rw-r--r-- | nuttx/configs/sama5d3x-ek/src/sam_nandflash.c | 18 |
4 files changed, 1011 insertions, 1083 deletions
diff --git a/nuttx/arch/arm/src/sama5/sam_nand.c b/nuttx/arch/arm/src/sama5/sam_nand.c index 04103ccdd..7d23e0b02 100644 --- a/nuttx/arch/arm/src/sama5/sam_nand.c +++ b/nuttx/arch/arm/src/sama5/sam_nand.c @@ -182,10 +182,9 @@ static void nand_wait_cmddone(struct sam_nandcs_s *priv); static void nand_setup_cmddone(struct sam_nandcs_s *priv); static void nand_wait_xfrdone(struct sam_nandcs_s *priv); static void nand_setup_xfrdone(struct sam_nandcs_s *priv); -#ifdef USE_RBEDGE static void nand_wait_rbedge(struct sam_nandcs_s *priv); static void nand_setup_rbedge(struct sam_nandcs_s *priv); -#else +#if 0 /* Not used */ static void nand_wait_nfcbusy(struct sam_nandcs_s *priv); #endif static uint32_t nand_nfc_poll(void); @@ -431,12 +430,18 @@ static int nand_operation_complete(struct sam_nandcs_s *priv) nand_nfc_cleale(priv, 0, COMMAND_STATUS, 0, 0, 0); status = READ_DATA8(&priv->raw); - if (((status & STATUS_READY) == 0) || ((status & STATUS_ERROR) != 0)) + /* On successful completion, the NAND will be READY with no ERROR conditions */ + + if ((status & STATUS_ERROR) != 0) { - return false; + return -EIO; + } + else if ((status & STATUS_READY) == 0) + { + return -EBUSY; } - return true; + return OK; } /**************************************************************************** @@ -856,7 +861,6 @@ static void nand_setup_xfrdone(struct sam_nandcs_s *priv) * ****************************************************************************/ -#ifdef USE_RBEDGE static void nand_wait_rbedge(struct sam_nandcs_s *priv) { #ifdef CONFIG_SAMA5_NAND_HSMCINTERRUPTS @@ -891,7 +895,6 @@ static void nand_wait_rbedge(struct sam_nandcs_s *priv) while (!g_nand.rbedge); #endif } -#endif /**************************************************************************** * Name: nand_setup_rbedge @@ -907,7 +910,6 @@ static void nand_wait_rbedge(struct sam_nandcs_s *priv) * ****************************************************************************/ -#ifdef USE_RBEDGE static void nand_setup_rbedge(struct sam_nandcs_s *priv) { #ifdef CONFIG_SAMA5_NAND_HSMCINTERRUPTS @@ -935,7 +937,6 @@ static void nand_setup_rbedge(struct sam_nandcs_s *priv) g_nand.rbedge = false; #endif } -#endif /**************************************************************************** * Name: nand_wait_nfcbusy @@ -951,7 +952,7 @@ static void nand_setup_rbedge(struct sam_nandcs_s *priv) * ****************************************************************************/ -#ifndef USE_RBEDGE +#if 0 /* Not used */ static void nand_wait_nfcbusy(struct sam_nandcs_s *priv) { uint32_t sr; @@ -1000,7 +1001,7 @@ static uint32_t nand_nfc_poll(void) sr = nand_getreg(SAM_HSMC_SR); #ifndef CONFIG_SAMA5_NAND_REGDEBUG - fllvdbg("sr=%08x\n", sr); + // fllvdbg("sr=%08x\n", sr); #endif /* When set to one, this XFRDONE indicates that the NFC has terminated @@ -1025,20 +1026,18 @@ static uint32_t nand_nfc_poll(void) g_nand.cmddone = true; } -#ifdef USE_RBEDGE /* If set to one, the RBEDGE0 flag indicates that an edge has been detected * on the Ready/Busy Line x. Depending on the EDGE CTRL field located in the * SMC_CFG register, only rising or falling edge is detected. This flag is * reset after the status read. */ - if ((pending & HSMC_NFCINT_RBEDGE0) != 0) + if ((sr & HSMC_NFCINT_RBEDGE0) != 0) { /* Set the latching RBEDGE0 status */ g_nand.rbedge = true; } -#endif #ifdef CONFIG_SAMA5_NAND_HSMCINTERRUPTS irqrestore(flags); @@ -1101,7 +1100,6 @@ static int hsmc_interrupt(int irq, void *context) nand_putreg(SAM_HSMC_IDR, HSMC_NFCINT_CMDDONE); } -#ifdef USE_RBEDGE /* If set to one, the RBEDGE0 flag indicates that an edge has been detected * on the Ready/Busy Line x. Depending on the EDGE CTRL field located in the * SMC_CFG register, only rising or falling edge is detected. This flag is @@ -1118,7 +1116,6 @@ static int hsmc_interrupt(int irq, void *context) nand_putreg(SAM_HSMC_IDR, HSMC_NFCINT_RBEDGE0); } -#endif return OK; } @@ -2150,14 +2147,12 @@ static int nand_writepage_noecc(struct sam_nandcs_s *priv, off_t block, COMMAND_WRITE_1, 0, 0, rowaddr); nand_wait_xfrdone(priv); -#ifdef USE_RBEDGE nand_setup_rbedge(priv); nand_nfc_cleale(priv, HSMC_CLE_WRITE_EN, COMMAND_WRITE_2, 0, 0, 0); nand_wait_rbedge(priv); -#else - nand_nfc_cleale(priv, HSMC_CLE_WRITE_EN, COMMAND_WRITE_2, 0, 0, 0); - nand_wait_nfcbusy(priv); -#endif + + /* Check if the transfer completed successfully */ + ret = nand_operation_complete(priv); if (ret < 0) { @@ -2874,7 +2869,15 @@ struct mtd_dev_s *sam_nand_initialize(int cs) } /* Initialize the NAND hardware for this CS */ - /* Perform board-specific SMC intialization for this CS */ + /* Perform board-specific SMC intialization for this CS. This should include: + * + * 1. Enable clocking to the HSMC + * 2. Configuration timing for the HSMC CS + * 3. Configuration of PIO pins + * + * Other than enabling the HSMC, these are all things that the board-cognizant + * logic is best prepared to handle. + */ ret = board_nandflash_config(cs); if (ret < 0) diff --git a/nuttx/arch/arm/src/sama5/sam_nand.h b/nuttx/arch/arm/src/sama5/sam_nand.h index 674e0d8c3..505f33050 100644 --- a/nuttx/arch/arm/src/sama5/sam_nand.h +++ b/nuttx/arch/arm/src/sama5/sam_nand.h @@ -252,13 +252,6 @@ #undef CONFIG_SAMA5_NAND_HSMCINTERRUPTS -/* In the write sequence, there is a step where we should wait on an R/B - * edge transition. The step currently hangs but, presumably must be - * restored when NAND is working. - */ - -#undef USE_RBEDGE - /**************************************************************************** * Public Types ****************************************************************************/ @@ -266,6 +259,9 @@ * select. The struct nand_raw_s must appear at the beginning of the * definition so that you can freely cast between pointers to struct * nand_raw_s and struct sam_nandcs_s. + * + * NOTE: Currently, only SAMA5D3x CS3 can support NAND. The logic here would + * support NAND on any CS, but that capability is not needed. */ struct sam_nandcs_s @@ -303,17 +299,14 @@ struct sam_nand_s #ifdef CONFIG_SAMA5_NAND_HSMCINTERRUPTS volatile bool cmddone; /* True: NFC command has completed (latching) */ volatile bool xfrdone; /* True: Transfer has completed (latching) */ -#ifdef USE_RBEDGE volatile bool rbedge; /* True: Ready/busy edge detected (latching) */ -#endif sem_t waitsem; /* Used to wait for one of the above states */ #else bool cmddone; /* True: NFC command has completed (latching) */ bool xfrdone; /* True: Transfer has completed (latching) */ -#ifdef USE_RBEDGE bool rbedge; /* True: Ready/busy edge detected (latching) */ -#endif + #endif #ifdef CONFIG_SAMA5_HAVE_PMECC diff --git a/nuttx/configs/sama5d3x-ek/README.txt b/nuttx/configs/sama5d3x-ek/README.txt index 060bbe601..115d4934b 100644 --- a/nuttx/configs/sama5d3x-ek/README.txt +++ b/nuttx/configs/sama5d3x-ek/README.txt @@ -73,15 +73,22 @@ Contents - Creating and Using NORBOOT - Buttons and LEDs - Serial Consoles - - Serial FLASH + - Networking + - AT25 Serial FLASH - HSMCI Card Slots - USB Ports + - USB High-Speed Device + - USB High-Speed Host - SDRAM Support - NAND Support - AT24 Serial EEPROM + - I2C Tool - CAN Usage - SAMA5 ADC Support - SAMA5 PWM Support + - RTC + - Watchdog Timer + - TRNG and /dev/random - OV2640 Camera Interface - I2S Audio Support - SAMA5D3x-EK Configuration Options @@ -429,8 +436,13 @@ Creating and Using NORBOOT sequence has been most convenient for me since it allows me to step into the program in NOR. + 7. An option is to use the SAM-BA tool to write the NORBOOT image into + Serial FLASH. Then, the system will boot from Serial FLASH by + copying the NORBOOT image in SRAM which will run and then start the + image in NOR FLASH automatically. + STATUS: - 2013-7-30: I have been unable to execute this configuration from NOR + 2013-7-30: I have been unable to execute these configurations from NOR FLASH by closing the BMS jumper (J9). As far as I can tell, this jumper does nothing on my board??? So I have been using the norboot configuration exclusively to start the program-under-test in NOR FLASH. @@ -534,8 +546,190 @@ Serial Consoles - Jumper JP16 not fitted: CDC is enabled - Jumper JP16 fitted : CDC is disabled" -Serial FLASH -============ +Networking +========== + + Networking support via the can be added to NSH by selecting the following + configuration options. The SAMA5D3x supports two different Ethernet MAC + peripherals: (1) The 10/100Base-T EMAC peripheral and (2) the + 10/100/1000Base-T GMAC peripheral. Only the SAMA5D31 and SAMAD35 support + the EMAC peripheral; Only the SAMA5D33, SAMA5D34, and SAMA5D35 support + the GMAC perpheral! NOTE that the SAMA5D35 supports both! + + Selecting the EMAC peripheral + ----------------------------- + + System Type + CONFIG_ARCH_CHIP_ATSAMA5D31=y : SAMA5D31 or SAMAD35 support EMAC + CONFIG_ARCH_CHIP_ATSAMA5D35=y : (others do not) + + System Type -> SAMA5 Peripheral Support + CONFIG_SAMA5_EMAC=y : Enable the EMAC peripheral + + System Type -> EMAC device driver options + CONFIG_SAMA5_EMAC_NRXBUFFERS=16 : Set aside some RS and TX buffers + CONFIG_SAMA5_EMAC_NTXBUFFERS=4 + CONFIG_SAMA5_EMAC_PHYADDR=1 : KSZ8051 PHY is at address 1 + CONFIG_SAMA5_EMAC_AUTONEG=y : Use autonegotiation + CONFIG_SAMA5_EMAC_RMII=y : Either MII or RMII interface should work + CONFIG_SAMA5_EMAC_PHYSR=30 : Address of PHY status register on KSZ8051 + CONFIG_SAMA5_EMAC_PHYSR_ALTCONFIG=y : Needed for KSZ8051 + CONFIG_SAMA5_EMAC_PHYSR_ALTMODE=0x7 : " " " " " " + CONFIG_SAMA5_EMAC_PHYSR_10HD=0x1 : " " " " " " + CONFIG_SAMA5_EMAC_PHYSR_100HD=0x2 : " " " " " " + CONFIG_SAMA5_EMAC_PHYSR_10FD=0x5 : " " " " " " + CONFIG_SAMA5_EMAC_PHYSR_100FD=0x6 : " " " " " " + + PHY selection. Later in the configuration steps, you will need to select + the KSZ8051 PHY for EMAC (See below) + + Selecting the GMAC peripheral + ----------------------------- + + System Type + CONFIG_ARCH_CHIP_ATSAMA5D33=y : SAMA5D31, SAMA5D33 and SAMAD35 + CONFIG_ARCH_CHIP_ATSAMA5D34=y : support GMAC (others do not) + CONFIG_ARCH_CHIP_ATSAMA5D35=y : + + System Type -> SAMA5 Peripheral Support + CONFIG_SAMA5_GMAC=y : Enable the GMAC peripheral + + System Type -> GMAC device driver options + CONFIG_SAMA5_GMAC_NRXBUFFERS=16 : Set aside some RS and TX buffers + CONFIG_SAMA5_GMAC_NTXBUFFERS=4 + CONFIG_SAMA5_GMAC_PHYADDR=1 : KSZ8051 PHY is at address 1 + CONFIG_SAMA5_GMAC_AUTONEG=y : Use autonegotiation + + If both EMAC and GMAC are selected, you will also need: + + CONFIG_SAMA5_GMAC_ISETH0=y : GMAC is "eth0"; EMAC is "eth1" + + PHY selection. Later in the configuration steps, you will need to select + the KSZ9021/31 PHY for GMAC (See below) + + Common configuration settings + ----------------------------- + + Networking Support + CONFIG_NET=y : Enable Neworking + CONFIG_NET_SOCKOPTS=y : Enable socket operations + CONFIG_NET_BUFSIZE=562 : Maximum packet size (MTD) 1518 is more standard + CONFIG_NET_RECEIVE_WINDOW=562 : Should be the same as CONFIG_NET_BUFSIZE + CONFIG_NET_TCP=y : Enable TCP/IP networking + CONFIG_NET_TCPBACKLOG=y : Support TCP/IP backlog + CONFIG_NET_TCP_READAHEAD_BUFSIZE=562 Read-ahead buffer size + CONFIG_NET_UDP=y : Enable UDP networking + CONFIG_NET_ICMP=y : Enable ICMP networking + CONFIG_NET_ICMP_PING=y : Needed for NSH ping command + : Defaults should be okay for other options + Device drivers -> Network Device/PHY Support + CONFIG_NETDEVICES=y : Enabled PHY selection + CONFIG_ETH0_PHY_KSZ8051=y : Select the KSZ8051 PHY (for EMAC), OR + CONFIG_ETH0_PHY_KSZ90x1=y : Select teh KSZ9021/31 PHY (for GMAC) + + Application Configuration -> Network Utilities + CONFIG_NETUTILS_RESOLV=y : Enable host address resolution + CONFIG_NETUTILS_TELNETD=y : Enable the Telnet daemon + CONFIG_NETUTILS_TFTPC=y : Enable TFTP data file transfers for get and put commands + CONFIG_NETUTILS_UIPLIB=y : Network library support is needed + CONFIG_NETUTILS_WEBCLIENT=y : Needed for wget support + : Defaults should be okay for other options + Application Configuration -> NSH Library + CONFIG_NSH_TELNET=y : Enable NSH session via Telnet + CONFIG_NSH_IPADDR=0x0a000002 : Select an IP address + CONFIG_NSH_DRIPADDR=0x0a000001 : IP address of gateway/host PC + CONFIG_NSH_NETMASK=0xffffff00 : Netmask + CONFIG_NSH_NOMAC=y : Need to make up a bogus MAC address + : Defaults should be okay for other options + + Using the network with NSH + -------------------------- + + So what can you do with this networking support? First you see that + NSH has several new network related commands: + + ifconfig, ifdown, ifup: Commands to help manage your network + get and put: TFTP file transfers + wget: HTML file transfers + ping: Check for access to peers on the network + Telnet console: You can access the NSH remotely via telnet. + + You can also enable other add on features like full FTP or a Web + Server or XML RPC and others. There are also other features that + you can enable like DHCP client (or server) or network name + resolution. + + By default, the IP address of the SAMA5D3x-EK will be 10.0.0.2 and + it will assume that your host is the gateway and has the IP address + 10.0.0.1. + + nsh> ifconfig + eth0 HWaddr 00:e0:de:ad:be:ef at UP + IPaddr:10.0.0.2 DRaddr:10.0.0.1 Mask:255.255.255.0 + + You can use ping to test for connectivity to the host (Careful, + Window firewalls usually block ping-related ICMP traffic). On the + target side, you can: + + nsh> ping 10.0.0.1 + PING 10.0.0.1 56 bytes of data + 56 bytes from 10.0.0.1: icmp_seq=1 time=0 ms + 56 bytes from 10.0.0.1: icmp_seq=2 time=0 ms + 56 bytes from 10.0.0.1: icmp_seq=3 time=0 ms + 56 bytes from 10.0.0.1: icmp_seq=4 time=0 ms + 56 bytes from 10.0.0.1: icmp_seq=5 time=0 ms + 56 bytes from 10.0.0.1: icmp_seq=6 time=0 ms + 56 bytes from 10.0.0.1: icmp_seq=7 time=0 ms + 56 bytes from 10.0.0.1: icmp_seq=8 time=0 ms + 56 bytes from 10.0.0.1: icmp_seq=9 time=0 ms + 56 bytes from 10.0.0.1: icmp_seq=10 time=0 ms + 10 packets transmitted, 10 received, 0% packet loss, time 10100 ms + + NOTE: In this configuration is is normal to have packet loss > 0% + the first time you ping due to the default handling of the ARP + table. + + On the host side, you should also be able to ping the SAMA5D3-EK: + + $ ping 10.0.0.2 + + You can also log into the NSH from the host PC like this: + + $ telnet 10.0.0.2 + Trying 10.0.0.2... + Connected to 10.0.0.2. + Escape character is '^]'. + sh_telnetmain: Session [3] Started + + NuttShell (NSH) NuttX-6.31 + nsh> help + help usage: help [-v] [<cmd>] + + [ echo ifconfig mkdir mw sleep + ? exec ifdown mkfatfs ping test + cat exit ifup mkfifo ps umount + cp free kill mkrd put usleep + cmp get losetup mh rm wget + dd help ls mount rmdir xd + df hexdump mb mv sh + + Builtin Apps: + nsh> + + NOTE: If you enable this feature, you experience a delay on booting. + That is because the start-up logic waits for the network connection + to be established before starting NuttX. In a real application, you + would probably want to do the network bringup on a separate thread + so that access to the NSH prompt is not delayed. + + This delay will be especially long if the board is not connected to + a network. + +AT25 Serial FLASH +================= + + Connections + ----------- Both the Ronetix and Embest versions of the SAMAD3x CPU modules include an Atmel AT25DF321A, 32-megabit, 2.7-volt SPI serial flash. The SPI @@ -553,9 +747,69 @@ Serial FLASH PD13; on the Ronetix schematic, JP11 seems only to bypass a resistor (may not be populated?). I think closing JP1 is correct in either case. + Configuration + ------------- + + The Embest or Ronetix CPU module includes an Atmel AT25DF321A, 32-megabit, + 2.7-volt SPI serial flash. Support for that serial FLASH can be enabled + in these configurations. These are the relevant configuration settings: + + System Type -> SAMA5 Peripheral Support + CONFIG_SAMA5_SPI0=y : Enable SPI0 + CONFIG_SAMA5_DMAC0=y : Enable DMA controller 0 + + System Type -> SPI device driver options + CONFIG_SAMA5_SPI_DMA=y : Use DMA for SPI transfers + CONFIG_SAMA5_SPI_DMATHRESHOLD=4 : Don't DMA for small transfers + + Device Drivers -> SPI Driver Support + CONFIG_SPI=y : Enable SPI support + CONFIG_SPI_EXCHANGE=y : Support the exchange method + + Device Drivers -> Memory Technology Device (MTD) Support + CONFIG_MTD=y : Enable MTD support + CONFIG_MTD_AT25=y : Enable the AT25 driver + CONFIG_AT25_SPIMODE=0 : Use SPI mode 0 + CONFIG_AT25_SPIFREQUENCY=10000000 : Use SPI frequency 10MHz + + The AT25 is capable of higher SPI rates than this. I have not experimented + a lot, but at 20MHz, the behavior is not the same with all CM modules. This + lower rate gives more predictable performance. + + Application Configuration -> NSH Library + CONFIG_NSH_ARCHINIT=y : NSH board-initialization + + Board Selection + CONFIG_SAMA5_AT25_AUTOMOUNT=y : Mounts AT25 for NSH + CONFIG_SAMA5_AT25_FTL=y : Create block driver for FAT + + NOTE that you must close JP1 on the Embest/Ronetix board in order to + enable the AT25 FLASH chip select. + + You can then format the AT25 FLASH for a FAT file system and mount the + file system at /mnt/at25 using these NSH commands: + + nsh> mkfatfs /dev/mtdblock0 + nsh> mount -t vfat /dev/mtdblock0 /mnt/at25 + + Then you an use the FLASH as a normal FAT file system: + + nsh> echo "This is a test" >/mnt/at25/atest.txt + nsh> ls -l /mnt/at25 + /mnt/at25: + -rw-rw-rw- 16 atest.txt + nsh> cat /mnt/at25/atest.txt + This is a test + + NOTE: It appears that if Linux runs out of NAND, it will destroy the + contents of the AT25. + HSMCI Card Slots ================ + Physical Slots + -------------- + The SAMA5D3x-EK provides a two SD memory card slots: (1) a full size SD card slot (J7 labeled MCI0), and (2) a microSD memory card slot (J6 labeled MCI1). @@ -589,6 +843,84 @@ HSMCI Card Slots PB24 MCI1_CK PB19 MCI1_CDA + Configuration Settings + ---------------------- + + Enabling HSMCI support. The SAMA5D3x-EK provides a two SD memory card + slots: (1) a full size SD card slot (J7 labeled MCI0), and (2) a + microSD memory card slot (J6 labeled MCI1). The full size SD card slot + connects via HSMCI0; the microSD connects vi HSMCI1. Supportfor both SD + slots can be enabled with the following settings: + + System Type->ATSAMA5 Peripheral Support + CONFIG_SAMA5_HSMCI0=y : Enable HSMCI0 support + CONFIG_SAMA5_HSMCI1=y : Enable HSMCI1 support + CONFIG_SAMA5_DMAC0=y : DMAC0 is needed by HSMCI0 + CONFIG_SAMA5_DMAC1=y : DMAC1 is needed by HSMCI1 + + System Type + CONFIG_SAMA5_PIO_IRQ=y : PIO interrupts needed + CONFIG_SAMA5_PIOD_IRQ=y : Card detect pins are on PIOD + + Device Drivers -> MMC/SD Driver Support + CONFIG_MMCSD=y : Enable MMC/SD support + CONFIG_MMSCD_NSLOTS=1 : One slot per driver instance + CONFIG_MMCSD_HAVECARDDETECT=y : Supports card-detect PIOs + CONFIG_MMCSD_MMCSUPPORT=n : Interferes with some SD cards + CONFIG_MMCSD_SPI=n : No SPI-based MMC/SD support + CONFIG_MMCSD_SDIO=y : SDIO-based MMC/SD support + CONFIG_SDIO_DMA=y : Use SDIO DMA + CONFIG_SDIO_BLOCKSETUP=y : Needs to know block sizes + + Library Routines + CONFIG_SCHED_WORKQUEUE=y : Driver needs work queue support + + Application Configuration -> NSH Library + CONFIG_NSH_ARCHINIT=y : NSH board-initialization + + Using the SD card + ----------------- + + 1) After booting, the HSCMI devices will appear as /dev/mmcsd0 + and /dev/mmcsd1. + + 2) If you try mounting an SD card with nothing in the slot, the + mount will fail: + + nsh> mount -t vfat /dev/mmcsd1 /mnt/sd1 + nsh: mount: mount failed: 19 + + NSH can be configured to provide errors as strings instead of + numbers. But in this case, only the error number is reported. The + error numbers can be found in nuttx/include/errno.h: + + #define ENODEV 19 + #define ENODEV_STR "No such device" + + So the mount command is saying that there is no device or, more + correctly, that there is no card in the SD card slot. + + 3) Inserted the SD card. Then the mount should succeed. + + nsh> mount -t vfat /dev/mmcsd1 /mnt/sd1 + nsh> ls /mnt/sd1 + /mnt/sd1: + atest.txt + nsh> cat /mnt/sd1/atest.txt + This is a test + + 4) Before removing the card, you must umount the file system. This is + equivalent to "ejecting" or "safely removing" the card on Windows: It + flushes any cached data to the card and makes the SD card unavailable + to the applications. + + nsh> umount -t /mnt/sd1 + + It is now safe to remove the card. NuttX provides into callbacks + that can be used by an application to automatically unmount the + volume when it is removed. But those callbacks are not used in + these configurations. + USB Ports ========= @@ -642,8 +974,312 @@ USB Ports ---- ----------- ------------------------------------------------------- PD28 OVCUR_USB Combined overrcurrent indication from port A and B +USB High-Speed Device +===================== + + Basic USB High-Speed Device Configuration + ----------------------------------------- + + Support the USB high-speed device (UDPHS) driver can be enabled with these + NuttX configuration settings. + + Device Drivers -> USB Device Driver Support + CONFIG_USBDEV=y : Enable USB device support + CONFIG_USBDEV_DUALSPEED=y : Device support High and Full Speed + CONFIG_USBDEV_DMA=y : Device uses DMA + + System Type -> ATSAMA5 Peripheral Support + CONFIG_SAMA5_UDPHS=y : Enable UDPHS High Speed USB device + + Application Configuration -> NSH Library + CONFIG_NSH_ARCHINIT=y : NSH board-initialization + + Mass Storage Class + ------------------ + + The Mass Storage Class (MSC) class driver is selected for use with + UDPHS: + + Device Drivers -> USB Device Driver Support + CONFIG_USBMSC=y : Enable the USB MSC class driver + CONFIG_USBMSC_EPBULKOUT=1 : Use EP1 for the BULK OUT endpoint + CONFIG_USBMSC_EPBULKIN=2 : Use EP2 for the BULK IN endpoint + + The following setting enables an add-on that can can be used to control + the USB MSC device. It will add two new NSH commands: + + a. msconn will connect the USB serial device and export the AT25 + to the host, and + b. msdis which will disconnect the USB serial device. + + Application Configuration -> System Add-Ons: + CONFIG_SYSTEM_USBMSC=y : Enable the USBMSC add-on + CONFIG_SYSTEM_USBMSC_NLUNS=1 : One LUN + CONFIG_SYSTEM_USBMSC_DEVMINOR1=0 : Minor device zero + CONFIG_SYSTEM_USBMSC_DEVPATH1="/dev/mtdblock0" + : Use a single, LUN: The AT25 + : block driver. + + NOTES: + + a. To prevent file system corruption, make sure that the AT25 is un- + mounted *before* exporting the mass storage device to the host: + + nsh> umount /mnt/at25 + nsh> mscon + + The AT25 can be re-mounted after the mass storage class is disconnected: + + nsh> msdis + nsh> mount -t vfat /dev/mtdblock0 /mnt/at25 + + b. If you change the value CONFIG_SYSTEM_USBMSC_DEVPATH1, then you + can export other file systems: + + "/dev/mmcsd1" will export the HSMCI1 microSD + "/dev/mmcsd0" will export the HSMCI0 full-size SD slot + "/dev/ram0" could even be used to export a RAM disk. But you would + first have to use mkrd to create the RAM disk and mkfatfs to put + a FAT file system on it. + + CDC/ACM Serial Device Class + --------------------------- + + This will select the CDC/ACM serial device. Defaults for the other + options should be okay. + + Device Drivers -> USB Device Driver Support + CONFIG_CDCACM=y : Enable the CDC/ACM device + CONFIG_CDCACM_BULKIN_REQLEN=768 : Default too small for high-speed + + The following setting enables an example that can can be used to control + the CDC/ACM device. It will add two new NSH commands: + + a. sercon will connect the USB serial device (creating /dev/ttyACM0), and + b. serdis which will disconnect the USB serial device (destroying + /dev/ttyACM0). + + Application Configuration -> Examples: + CONFIG_SYSTEM_CDCACM=y : Enable an CDC/ACM example + + Debugging USB Device + -------------------- + + There is normal console debug output available that can be enabled with + CONFIG_DEBUG + CONFIG_DEBUG_USB. However, USB device operation is very + time critical and enabling this debug ouput WILL interfere with the + operation of the UDPHS. USB device tracing is a less invasive way to get + debug information: If tracing is enabled, the USB device will save + encoded trace output in in-memory buffer; if the USB monitor is also + enabled, that trace buffer will be periodically emptied and dumped to the + system logging device (the serial console in this configuration): + + Device Drivers -> "USB Device Driver Support: + CONFIG_USBDEV_TRACE=y : Enable USB trace feature + CONFIG_USBDEV_TRACE_NRECORDS=256 : Buffer 256 records in memory + CONFIG_USBDEV_TRACE_STRINGS=y : (optional) + + Application Configuration -> NSH LIbrary: + CONFIG_NSH_USBDEV_TRACE=n : No builtin tracing from NSH + CONFIG_NSH_ARCHINIT=y : Automatically start the USB monitor + + Application Configuration -> System NSH Add-Ons: + CONFIG_SYSTEM_USBMONITOR=y : Enable the USB monitor daemon + CONFIG_SYSTEM_USBMONITOR_STACKSIZE=2048 : USB monitor daemon stack size + CONFIG_SYSTEM_USBMONITOR_PRIORITY=50 : USB monitor daemon priority + CONFIG_SYSTEM_USBMONITOR_INTERVAL=1 : Dump trace data every second + CONFIG_SYSTEM_USBMONITOR_TRACEINIT=y : Enable TRACE output + CONFIG_SYSTEM_USBMONITOR_TRACECLASS=y + CONFIG_SYSTEM_USBMONITOR_TRACETRANSFERS=y + CONFIG_SYSTEM_USBMONITOR_TRACECONTROLLER=y + CONFIG_SYSTEM_USBMONITOR_TRACEINTERRUPTS=y + + NOTE: If USB debug output is also enabled, both outpus will appear on the + serial console. However, the debug output will be asynchronous with the + trace output and, hence, difficult to interpret. + +USB High-Speed Host +=================== + + OHCI Only + --------- + + Support the USB low/full-speed OHCI host driver can be enabled by changing + the NuttX configuration file as follows: + + System Type -> ATSAMA5 Peripheral Support + CONFIG_SAMA5_UHPHS=y : USB Host High Speed + + System Type -> USB High Speed Host driver options + CONFIG_SAMA5_OHCI=y : Low/full-speed OHCI support + : Defaults for values probably OK + Device Drivers + CONFIG_USBHOST=y : Enable USB host support + + Device Drivers -> USB Host Driver Support + CONFIG_USBHOST_ISOC_DISABLE=y : Isochronous endpoints not used + CONFIG_USBHOST_MSC=y : Enable the mass storage class driver + CONFIG_USBHOST_HIDKBD=y : Enable the HID keyboard class driver + + Library Routines + CONFIG_SCHED_WORKQUEUE=y : Worker thread support is required + + Application Configuration -> NSH Library + CONFIG_NSH_ARCHINIT=y : NSH board-initialization + + NOTE: When OHCI is selected, the SAMA5 will operate at 384MHz instead of + 396MHz. This is so that the PLL generates a frequency which is a multiple + of the 48MHz needed for OHCI. The delay loop calibration values that are + used will be off slightly because of this. + + EHCI + ---- + + Support the USB high-speed EHCI host driver can be enabled by changing the + NuttX configuration file as follows. If EHCI is enabled by itself, then + only high-speed devices can be supported. If OHCI is also enabled, then + all low-, full-, and high speed devices will work. + + System Type -> ATSAMA5 Peripheral Support + CONFIG_SAMA5_UHPHS=y : USB Host High Speed + + System Type -> USB High Speed Host driver options + CONFIG_SAMA5_EHCI=y : High-speed EHCI support + CONFIG_SAMA5_OHCI=y : Low/full-speed OHCI support + : Defaults for values probably OK for both + Device Drivers + CONFIG_USBHOST=y : Enable USB host support + CONFIG_USBHOST_INT_DISABLE=y : Interrupt endpoints not needed + CONFIG_USBHOST_ISOC_DISABLE=y : Isochronous endpoints not needed + + Device Drivers -> USB Host Driver Support + CONFIG_USBHOST_ISOC_DISABLE=y : Isochronous endpoints not used + CONFIG_USBHOST_MSC=y : Enable the mass storage class driver + CONFIG_USBHOST_HIDKBD=y : Enable the HID keyboard class driver + + Library Routines + CONFIG_SCHED_WORKQUEUE=y : Worker thread support is required + + Application Configuration -> NSH Library + CONFIG_NSH_ARCHINIT=y : NSH board-initialization + + Mass Storage Device Usage + ------------------------- + + Example Usage: + + NuttShell (NSH) NuttX-6.29 + nsh> ls /dev + /dev: + console + mtdblock0 + null + ttyS0 + + Here a USB FLASH stick is inserted. Nothing visible happens in the + shell. But a new device will appear: + + nsh> ls /dev + /dev: + console + mtdblock0 + null + sda + ttyS0 + nsh> mount -t vfat /dev/sda /mnt/sda + nsh> ls -l /mnt/sda + /mnt/sda: + -rw-rw-rw- 8788 viminfo + drw-rw-rw- 0 .Trash-1000/ + -rw-rw-rw- 3378 zmodem.patch + -rw-rw-rw- 1503 sz-1.log + -rw-rw-rw- 613 .bashrc + + HID Keyboard Usage + ------------------ + + If a (supported) USB keyboard is connected, a /dev/kbda device will appear: + + nsh> ls /dev + /dev: + console + kbda + mtdblock0 + null + ttyS0 + + /dev/kbda is a read-only serial device. Reading from /dev/kbda will get + keyboard input as ASCII data (other encodings are possible): + + nsh> cat /dev/kbda + + Debugging USB Host + ------------------ + + There is normal console debug output available that can be enabled with + CONFIG_DEBUG + CONFIG_DEBUG_USB. However, USB host operation is very time + critical and enabling this debug output might interfere with the operation + of the UDPHS. USB host tracing is a less invasive way to get debug + information: If tracing is enabled, the USB host will save encoded trace + output in in-memory buffer; if the USB monitor is also enabled, that trace + buffer will be periodically emptied and dumped to the system logging device + (the serial console in this configuration): + + Device Drivers -> "USB Host Driver Support: + CONFIG_USBHOST_TRACE=y : Enable USB host trace feature + CONFIG_USBHOST_TRACE_NRECORDS=256 : Buffer 256 records in memory + CONFIG_USBHOST_TRACE_VERBOSE=y : Buffer everything + + Application Configuration -> NSH LIbrary: + CONFIG_NSH_USBDEV_TRACE=n : No builtin tracing from NSH + CONFIG_NSH_ARCHINIT=y : Automatically start the USB monitor + + Application Configuration -> System NSH Add-Ons: + CONFIG_SYSTEM_USBMONITOR=y : Enable the USB monitor daemon + CONFIG_SYSTEM_USBMONITOR_STACKSIZE=2048 : USB monitor daemon stack size + CONFIG_SYSTEM_USBMONITOR_PRIORITY=50 : USB monitor daemon priority + CONFIG_SYSTEM_USBMONITOR_INTERVAL=1 : Dump trace data every second + + NOTE: If USB debug output is also enabled, both outpus will appear on the + serial console. However, the debug output will be asynchronous with the + trace output and, hence, difficult to interpret. + +NOR FLASH Support +================= + + Most of these configurations execute out of CS0 NOR flash and can only be + loaded via SAM-BA. These are the relevant configuration options the + define the NOR FLASH configuration: + + CONFIG_SAMA5_BOOT_CS0FLASH=y : Boot from FLASH on CS0 + CONFIG_BOOT_RUNFROMFLASH=y : Run in place on FLASH (vs copying to RAM) + + CONFIG_SAMA5_EBICS0=y : Enable CS0 external memory + CONFIG_SAMA5_EBICS0_SIZE=134217728 : Memory size is 128KB + CONFIG_SAMA5_EBICS0_NOR=y : Memory type is NOR FLASH + + CONFIG_FLASH_START=0x10000000 : Physical FLASH start address + CONFIG_FLASH_VSTART=0x10000000 : Virtual FLASH start address + CONFIG_FLASH_SIZE=134217728 : FLASH size (again) + + CONFIG_RAM_START=0x00300400 : Data stored after page table + CONFIG_RAM_VSTART=0x00300400 + CONFIG_RAM_SIZE=114688 : Available size of 128KB - 16KB for page table + + NOTE: In order to boot in this configuration, you need to close the BMS + jumper. + + STATUS: I have been unable to execute these configurations from NOR FLASH + by closing the BMS jumper (J9). As far as I can tell, this jumper does + nothing on my board??? So I have been using the norboot configuration + exclusively to start the program-under-test in NOR FLASH (see below). + SDRAM Support ============= + + Configuration + ------------- + In these configurations, .data and .bss are retained in ISRAM. SDRAM can be initialized and included in the heap. Relevant configuration settings: @@ -664,9 +1300,53 @@ SDRAM Support Memory Management CONFIG_MM_REGIONS=2 : Two heap memory regions: ISRAM and SDRAM + RAM Test + -------- + + Another thing you could do is to enable the RAM test built-in application. + You can enable the NuttX RAM test that may be used to verify the external + SDRAM. To do this, keep the SDRAM out of the heap so that it can be tested + without crashing programs using the memory: + + System Type->Heap Configuration + CONFIG_SAMA5_DDRCS_HEAP=n : Don't add the SDRAM to the heap + + Memory Management + CONFIG_MM_REGIONS=1 : One memory regions: ISRAM + + Then enable the RAM test built-in application: + + Application Configuration->System NSH Add-Ons->Ram Test + CONFIG_SYSTEM_RAMTEST=y + + In this configuration, the SDRAM is not added to heap and so is not + accessable to the applications. So the RAM test can be freely executed + against the SRAM memory beginning at address 0x2000:0000 (DDR CS): + + nsh> ramtest -h + Usage: <noname> [-w|h|b] <hex-address> <decimal-size> + + Where: + <hex-address> starting address of the test. + <decimal-size> number of memory locations (in bytes). + -w Sets the width of a memory location to 32-bits. + -h Sets the width of a memory location to 16-bits (default). + -b Sets the width of a memory location to 8-bits. + + To test the entire external 256MB SRAM: + + nsh> ramtest -w 20000000 268435456 + RAMTest: Marching ones: 20000000 268435456 + RAMTest: Marching zeroes: 20000000 268435456 + RAMTest: Pattern test: 20000000 268435456 55555555 aaaaaaaa + RAMTest: Pattern test: 20000000 268435456 66666666 99999999 + RAMTest: Pattern test: 20000000 268435456 33333333 cccccccc + RAMTest: Address-in-address test: 20000000 268435456 + NAND Support ============ - NAND Support can be added to the the NSH configuration by modifying the + + NAND Support can be added to the NSH configuration by modifying the NuttX configuration file as follows: System Type -> SAMA5 Peripheal support @@ -708,9 +1388,18 @@ NAND Support bad blocks and only NXFFS performs wear-leveling. NOTE: NXFFS is very slow. The first time that you start the system, - be prepared for a long wait. I have lots of debug on so I don't know - what the optimized wait will be. But with debug ON, the wait is in - units of hours. + be prepared for a long wait; NXFFS will need to scan the entire NAND, + erase it, reformat, and rescan the NAND. I have lots of debug on so I + don't know what the optimized wait would be. But with debug ON, + software ECC, and no DMA the wait is in many tens of minutes, perhaps + hours. + + On subsequent boots, after the NXFFS file system has been created, + the boot time can still be substantial. This is because NXFFS needs + to scan the entire NAND device and build the in-memory dataset need + to access NAND. It is recommended you create a separated thread at + boot time to bring up NXFFS so that you don't delay the boot-to-prompt + time excessively. NOTE: There is another NXFFS related issue: When the FLASH is fully used, NXFFS will restructure the entire FLASH, the delay to @@ -719,12 +1408,26 @@ NAND Support does the job a little-at-a-time so that there is no massive clean-up when the FLASH becomes full. + WARNING: This will wipe out everything that you may have on the NAND + FLASH! I have found that using the JTAG with no valid image on NAND + or Serial FLASH is a problem: In that case, the code always ends up + in the SAM-BA bootloader. + + The work around for this case is to put the NORBOOT image into Serial + FLASH. Then, the system will boot from Serial FLASH by copying the + NORBOOT image in SRAM which will run and then start the image in NOR + FLASH. See the discussion of the NORBOOT configuration in the + "Creating and Using NORBOOT" section above. + Application Configuration -> NSH Library CONFIG_NSH_ARCHINIT=y : Use architecture-specific initialization AT24 Serial EEPROM ================== + AT24 Connections + ---------------- + A AT24C512 Serial EEPPROM was used for tested I2C. There are other I2C/TWI devices on-board, but the serial EEPROM is the simplest test. @@ -740,6 +1443,132 @@ AT24 Serial EEPROM By default, PA30 and PA31 are SWJ-DP pins, it can be used as a pin for TWI peripheral in the end application. + Configuration Settings + ---------------------- + + The following configuration settings were used: + + System Type -> SAMA5 Peripheral Support + CONFIG_SAMA5_TWI0=y : Enable TWI0 + + System Type -> TWI device driver options + SAMA5_TWI0_FREQUENCY=100000 : Select a TWI frequency + + Device Drivers -> I2C Driver Support + CONFIG_I2C=y : Enable I2C support + CONFIG_I2C_TRANSFER=y : Driver supports the transfer() method + CONFIG_I2C_WRITEREAD=y : Driver supports the writeread() method + + Device Drivers -> Memory Technology Device (MTD) Support + CONFIG_MTD=y : Enable MTD support + CONFIG_MTD_AT24XX=y : Enable the AT24 driver + CONFIG_AT24XX_SIZE=512 : Specifies the AT 24C512 part + CONFIG_AT24XX_ADDR=0x53 : AT24 I2C address + + Application Configuration -> NSH Library + CONFIG_NSH_ARCHINIT=y : NSH board-initialization + + File systems + CONFIG_NXFFS=y : Enables the NXFFS file system + CONFIG_NXFFS_PREALLOCATED=y : Required + : Other defaults are probably OK + + Board Selection + CONFIG_SAMA5_AT24_AUTOMOUNT=y : Mounts AT24 for NSH + CONFIG_SAMA5_AT24_NXFFS=y : Mount the AT24 using NXFFS + + You can then format the AT24 EEPROM for a FAT file system and mount the + file system at /mnt/at24 using these NSH commands: + + nsh> mkfatfs /dev/mtdblock0 + nsh> mount -t vfat /dev/mtdblock0 /mnt/at24 + + Then you an use the FLASH as a normal FAT file system: + + nsh> echo "This is a test" >/mnt/at24/atest.txt + nsh> ls -l /mnt/at24 + /mnt/at24: + -rw-rw-rw- 16 atest.txt + nsh> cat /mnt/at24/atest.txt + This is a test + +I2C Tool +======== + + I2C Tool. NuttX supports an I2C tool at apps/system/i2c that can be used + to peek and poke I2C devices. That tool cal be enabled by setting the + following: + + System Type -> SAMA5 Peripheral Support + CONFIG_SAMA5_TWI0=y : Enable TWI0 + CONFIG_SAMA5_TWI1=y : Enable TWI1 + CONFIG_SAMA5_TWI2=y : Enable TWI2 + + System Type -> TWI device driver options + SAMA5_TWI0_FREQUENCY=100000 : Select a TWI0 frequency + SAMA5_TWI1_FREQUENCY=100000 : Select a TWI1 frequency + SAMA5_TWI2_FREQUENCY=100000 : Select a TWI2 frequency + + Device Drivers -> I2C Driver Support + CONFIG_I2C=y : Enable I2C support + CONFIG_I2C_TRANSFER=y : Driver supports the transfer() method + CONFIG_I2C_WRITEREAD=y : Driver supports the writeread() method + + Application Configuration -> NSH Library + CONFIG_SYSTEM_I2CTOOL=y : Enable the I2C tool + CONFIG_I2CTOOL_MINBUS=0 : TWI0 has the minimum bus number 0 + CONFIG_I2CTOOL_MAXBUS=2 : TWI2 has the maximum bus number 2 + CONFIG_I2CTOOL_DEFFREQ=100000 : Pick a consistent frequency + + The I2C tool has extensive help that can be accessed as follows: + + nsh> i2c help + Usage: i2c <cmd> [arguments] + Where <cmd> is one of: + + Show help : ? + List busses : bus + List devices : dev [OPTIONS] <first> <last> + Read register : get [OPTIONS] [<repititions>] + Show help : help + Write register: set [OPTIONS] <value> [<repititions>] + Verify access : verf [OPTIONS] [<value>] [<repititions>] + + Where common "sticky" OPTIONS include: + [-a addr] is the I2C device address (hex). Default: 03 Current: 03 + [-b bus] is the I2C bus number (decimal). Default: 0 Current: 0 + [-r regaddr] is the I2C device register address (hex). Default: 00 Current: 00 + [-w width] is the data width (8 or 16 decimal). Default: 8 Current: 8 + [-s|n], send/don't send start between command and data. Default: -n Current: -n + [-i|j], Auto increment|don't increment regaddr on repititions. Default: NO Current: NO + [-f freq] I2C frequency. Default: 100000 Current: 100000 + + NOTES: + o Arguments are "sticky". For example, once the I2C address is + specified, that address will be re-used until it is changed. + + WARNING: + o The I2C dev command may have bad side effects on your I2C devices. + Use only at your own risk. + + As an example, the I2C dev comman can be used to list all devices + responding on TWI0 (the default) like this: + + nsh> i2c dev 0x03 0x77 + 0 1 2 3 4 5 6 7 8 9 a b c d e f + 00: -- -- -- -- -- -- -- -- -- -- -- -- -- + 10: -- -- -- -- -- -- -- -- -- -- 1a -- -- -- -- -- + 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- + 30: -- -- -- -- -- -- -- -- -- 39 -- -- -- 3d -- -- + 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- + 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- + 60: 60 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- + 70: -- -- -- -- -- -- -- -- + nsh> + + Address 0x1a is the WM8904. Address 0x39 is the SIL9022A. I am not sure + what is at address 0x3d and 0x60 + CAN Usage ========= I planned to verify CAN using the IXXAT USB-to-CAN Compact. This section @@ -1024,6 +1853,79 @@ SAMA5 PWM Support [-t duration] is the duration of the pulse train in seconds. Default: 5 Current: 5 [-h] shows this message and exits +RTC +=== + + The Real Time Clock/Calendar RTC) may be enabled with these settings: + + System Type: + CONFIG_SAMA5_RTC=y : Enable the RTC driver + + Drivers (these values will be selected automatically): + CONFIG_RTC=y : Use the RTC for system time + CONFIG_RTC_DATETIME=y : RTC supports data/time + + The RTC supports an alarm that may be enable with the following settings. + However, there is nothing in the system that currently makes use of this + alarm. + + Drivers: + CONFIG_RTC_ALARM=y : Enable the RTC alarm + + Library Routines + CONFIG_SCHED_WORKQUEUE=y : Alarm needs work queue support + +Watchdog Timer +============== + + NSH can be configured to exercise the watchdog timer test + (apps/examples/watchdog). This can be selected with the following + settings in the NuttX configuration file: + + System Type: + CONFIG_SAMA5_WDT=y : Enable the WDT peripheral + : Defaults in "RTC Configuration" should be OK + + Drivers (this will automatically be selected): + CONFIG_WATCHDOG=y : Enables watchdog timer driver support + + Application Configuration -> Eamples + CONFIG_EXAMPLES_WATCHDOG=y : Enable apps/examples/watchdog + + The WDT timer is driven off the slow, 32768Hz clock divided by 128. As a + result, the watchdog a maximum timeout value of 16 seconds. The SAMA5 WDT + may also only be programmed one time; the processor must be reset before + the WDT can be reprogrammed. + + The SAMA5 always boots with the watchdog timer enabled at its maximum + timeout (16 seconds). In the normal case where no watchdog timer driver + has been configured, the watchdog timer is disabled as part of the start + up logic. But, since we are permitted only one opportunity to program + the WDT, we cannot disable the watchdog time if CONFIG_SAMA5_WDT=y. So, + be forewarned: You have only 16 seconds to run your watchdog timer test! + + NOTE: If you are using the norboot program to run from FLASH as I did, + beware that the default version also disables the watchdog. You will + need a special version of norboot with CONFIG_SAMA5_WDT=y. + +TRNG and /dev/random +==================== + + NSH can be configured to enable the SAMA5 TRNG peripheral so that it + provides /dev/random. The following configuration will enable the TRNG, + /dev/random, and the simple test of /dev/random at apps/examples/ranadom: + + System Type: + CONFIG_SAMA5_TRNG=y : Enable the TRNG peripheral + + Drivers (automatically selected): + CONFIG_DEV_RANDOM=y : Enable /dev/random + + Applications -> Examples + CONFIG_EXAMPLES_RANDOM=y : Enable apps/examples/random + CONFIG_EXAMPLES_MAXSAMPLES=64 : Default settings are probably OK + CONFIG_EXAMPLES_NSAMPLES=8 + OV2640 Camera Interface ======================= @@ -1404,7 +2306,7 @@ Configurations See also the "NOTE about Windows native toolchains" in the section call "GNU Toolchain Options" above. - Configuration sub-directories + Configuration Sub-directories ----------------------------- Summary: Some of the descriptions below are long and wordy. Here is the concise summary of the available SAMA5D3x-EK configurations: @@ -1474,344 +2376,47 @@ Configurations CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows 3. This configuration executes out of CS0 NOR flash and can only - be loaded via SAM-BA. These are the relevant configuration options - the define the NOR FLASH configuration: - - CONFIG_SAMA5_BOOT_CS0FLASH=y : Boot from FLASH on CS0 - CONFIG_BOOT_RUNFROMFLASH=y : Run in place on FLASH (vs copying to RAM) - - CONFIG_SAMA5_EBICS0=y : Enable CS0 external memory - CONFIG_SAMA5_EBICS0_SIZE=134217728 : Memory size is 128KB - CONFIG_SAMA5_EBICS0_NOR=y : Memory type is NOR FLASH - - CONFIG_FLASH_START=0x10000000 : Physical FLASH start address - CONFIG_FLASH_VSTART=0x10000000 : Virtual FLASH start address - CONFIG_FLASH_SIZE=134217728 : FLASH size (again) - - CONFIG_RAM_START=0x00300400 : Data stored after page table - CONFIG_RAM_VSTART=0x00300400 - CONFIG_RAM_SIZE=114688 : Available size of 128KB - 16KB for page table - - NOTE: In order to boot in this configuration, you need to close the - BMS jumper. + be loaded via SAM-BA. The are the relevant configuration options + are provided above in the section entitled "NOR FLASH Support". The following features are pre-enabled in the demo configuration, but not in the nsh configuration: 4. SDRAM is supported. .data and .bss is still retained in ISRAM, but SDRAM is intialized and the SDRAM memory is included in the heap. - Relevant configuration settings: - - System Type->ATSAMA5 Peripheral Support - CONFIG_SAMA5_MPDDRC=y : Enable the DDR controller - - System Type->External Memory Configuration - CONFIG_SAMA5_DDRCS=y : Tell the system that DRAM is at the DDR CS - CONFIG_SAMA5_DDRCS_SIZE=268435456 : 2Gb DRAM -> 256GB - CONFIG_SAMA5_DDRCS_LPDDR2=y : Its DDR2 - CONFIG_SAMA5_MT47H128M16RT=y : This is the type of DDR2 + Relevant configuration settings are provided in the paragraph entitled + "SDRAM Support" above. - System Type->Heap Configuration - CONFIG_SAMA5_DDRCS_HEAP=y : Add the SDRAM to the heap - CONFIG_SAMA5_DDRCS_HEAP_OFFSET=0 - CONFIG_SAMA5_DDRCS_HEAP_SIZE=268435456 - - Memory Management - CONFIG_MM_REGIONS=2 : Two heap memory regions: ISRAM and SDRAM - - 5. The Real Time Clock/Calendar RTC) is enabled. These are the relevant - settings: - - System Type: - CONFIG_SAMA5_RTC=y : Enable the RTC driver - - Drivers (these values will be selected automatically): - CONFIG_RTC=y : Use the RTC for system time - CONFIG_RTC_DATETIME=y : RTC supports data/time + 5. The Real Time Clock/Calendar RTC) is enabled. See the sectino entitled + "RTC" above. 6. The Embest or Ronetix CPU module includes an Atmel AT25DF321A, 32-megabit, 2.7-volt SPI serial flash. Support for that serial - FLASH can is enabled in this configuration. These are the relevant - configuration settings: - - System Type -> SAMA5 Peripheral Support - CONFIG_SAMA5_SPI0=y : Enable SPI0 - CONFIG_SAMA5_DMAC0=y : Enable DMA controller 0 - - System Type -> SPI device driver options - CONFIG_SAMA5_SPI_DMA=y : Use DMA for SPI transfers - CONFIG_SAMA5_SPI_DMATHRESHOLD=4 : Don't DMA for small transfers - - Device Drivers -> SPI Driver Support - CONFIG_SPI=y : Enable SPI support - CONFIG_SPI_EXCHANGE=y : Support the exchange method - - Device Drivers -> Memory Technology Device (MTD) Support - CONFIG_MTD=y : Enable MTD support - CONFIG_MTD_AT25=y : Enable the AT25 driver - CONFIG_AT25_SPIMODE=0 : Use SPI mode 0 - CONFIG_AT25_SPIFREQUENCY=10000000 : Use SPI frequency 10MHz - - The AT25 is capable of higher SPI rates than this. I have not - experimented a lot, but at 20MHz, the behavior is not the same with - all CM modules. This lower rate gives more predictable performance. - - Application Configuration -> NSH Library - CONFIG_NSH_ARCHINIT=y : NSH board-initialization - - Board Selection - CONFIG_SAMA5_AT25_AUTOMOUNT=y : Mounts AT25 for NSH - CONFIG_SAMA5_AT25_FTL=y : Create block driver for FAT - - NOTE that you must close JP1 on the Embest/Ronetix board in - order to enable the AT25 FLASH chip select. - - You can then format the AT25 FLASH for a FAT file system and mount - the file system at /mnt/at25 using these NSH commands: - - nsh> mkfatfs /dev/mtdblock0 - nsh> mount -t vfat /dev/mtdblock0 /mnt/at25 - - Then you an use the FLASH as a normal FAT file system: - - nsh> echo "This is a test" >/mnt/at25/atest.txt - nsh> ls -l /mnt/at25 - /mnt/at25: - -rw-rw-rw- 16 atest.txt - nsh> cat /mnt/at25/atest.txt - This is a test - - NOTE: It appears that if Linux runs out of NAND, it will destroy the - contents of the AT25. + FLASH can is enabled in this configuration. See the paragraph + entitle "AT25 Serial FLASH" for detailed configuration settings. 7. Support for HSMCI car slots. The SAMA5D3x-EK provides a two SD memory card slots: (1) a full size SD card slot (J7 labeled MCI0), and (2) a microSD memory card slot (J6 labeled MCI1). The full size SD card slot connects via HSMCI0; the microSD connects vi HSMCI1. Relevant - configuration settings include: - - System Type->ATSAMA5 Peripheral Support - CONFIG_SAMA5_HSMCI0=y : Enable HSMCI0 support - CONFIG_SAMA5_HSMCI1=y : Enable HSMCI1 support - CONFIG_SAMA5_DMAC0=y : DMAC0 is needed by HSMCI0 - CONFIG_SAMA5_DMAC1=y : DMAC1 is needed by HSMCI1 - - System Type - CONFIG_SAMA5_PIO_IRQ=y : PIO interrupts needed - CONFIG_SAMA5_PIOD_IRQ=y : Card detect pins are on PIOD - - Device Drivers -> MMC/SD Driver Support - CONFIG_MMCSD=y : Enable MMC/SD support - CONFIG_MMSCD_NSLOTS=1 : One slot per driver instance - CONFIG_MMCSD_HAVECARDDETECT=y : Supports card-detect PIOs - CONFIG_MMCSD_MMCSUPPORT=n : Interferes with some SD cards - CONFIG_MMCSD_SPI=n : No SPI-based MMC/SD support - CONFIG_MMCSD_SDIO=y : SDIO-based MMC/SD support - CONFIG_SDIO_DMA=y : Use SDIO DMA - CONFIG_SDIO_BLOCKSETUP=y : Needs to know block sizes - - Library Routines - CONFIG_SCHED_WORKQUEUE=y : Driver needs work queue support - - Application Configuration -> NSH Library - CONFIG_NSH_ARCHINIT=y : NSH board-initialization - - Using the SD card: - - 1) After booting, the HSCMI devices will appear as /dev/mmcsd0 - and /dev/mmcsd1. - - 2) If you try mounting an SD card with nothing in the slot, the - mount will fail: - - nsh> mount -t vfat /dev/mmcsd1 /mnt/sd1 - nsh: mount: mount failed: 19 - - NSH can be configured to provide errors as strings instead of - numbers. But in this case, only the error number is reported. - The error numbers can be found in nuttx/include/errno.h: - - #define ENODEV 19 - #define ENODEV_STR "No such device" - - So the mount command is saying that there is no device or, more - correctly, that there is no card in the SD card slot. - - 3) Inserted the SD card. Then the mount should succeed. - - nsh> mount -t vfat /dev/mmcsd1 /mnt/sd1 - nsh> ls /mnt/sd1 - /mnt/sd1: - atest.txt - nsh> cat /mnt/sd1/atest.txt - This is a test - - 4) Before removing the card, you must umount the file system. This - is equivalent to "ejecting" or "safely removing" the card on - Windows: It flushes any cached data to the card and makes the SD - card unavailable to the applications. - - nsh> umount -t /mnt/sd1 - - It is now safe to remove the card. NuttX provides into callbacks - that can be used by an application to automatically unmount the - volume when it is removed. But those callbacks are not used in - this configuration. - - 8. Support the USB high-speed device (UDPHS) driver is enabled. - These are the relevant NuttX configuration settings: - - Device Drivers -> USB Device Driver Support - CONFIG_USBDEV=y : Enable USB device support - CONFIG_USBDEV_DUALSPEED=y : Device support High and Full Speed - CONFIG_USBDEV_DMA=y : Device uses DMA - - System Type -> ATSAMA5 Peripheral Support - CONFIG_SAMA5_UDPHS=y : Enable UDPHS High Speed USB device - - Application Configuration -> NSH Library - CONFIG_NSH_ARCHINIT=y : NSH board-initialization - - The Mass Storage Class (MSC) class driver is selected for use with - UDPHS: - - Device Drivers -> USB Device Driver Support - CONFIG_USBMSC=y : Enable the USB MSC class driver - CONFIG_USBMSC_EPBULKOUT=1 : Use EP1 for the BULK OUT endpoint - CONFIG_USBMSC_EPBULKIN=2 : Use EP2 for the BULK IN endpoint - - The following setting enables an add-on that can can be used to - control the CDC/ACM device. It will add two new NSH commands: - - a. msconn will connect the USB serial device and export the AT25 - to the host, and - b. msdis which will disconnect the USB serial device. - - Application Configuration -> System Add-Ons: - CONFIG_SYSTEM_USBMSC=y : Enable the USBMSC add-on - CONFIG_SYSTEM_USBMSC_NLUNS=1 : One LUN - CONFIG_SYSTEM_USBMSC_DEVMINOR1=0 : Minor device zero - CONFIG_SYSTEM_USBMSC_DEVPATH1="/dev/mtdblock0" - : Use a single, LUN: The AT25 - : block driver. - - NOTES: + configuration settings can be found in the section entitle "HSMCI + Card Slots" above. - a. To prevent file system corruption, make sure that the AT25 is un- - mounted *before* exporting the mass storage device to the host: - - nsh> umount /mnt/at25 - nsh> mscon - - The AT25 can be re-mounted after the mass storage class is disconnected: - - nsh> msdis - nsh> mount -t vfat /dev/mtdblock0 /mnt/at25 - - b. If you change the value CONFIG_SYSTEM_USBMSC_DEVPATH1, then you - can export other file systems: - - "/dev/mmcsd1" will export the HSMCI1 microSD - "/dev/mmcsd0" will export the HSMCI0 full-size SD slot - "/dev/ram0" could even be used to export a RAM disk. But you would - first have to use mkrd to create the RAM disk and mkfatfs to put - a FAT file system on it. + 8. Support the USB high-speed device (UDPHS) driver is enabled. See the + section above entitled "USB High-Speed Device" for relevant NuttX + configuration settings. 9. The USB high-speed EHCI and the low-/full- OHCI host drivers are supported - in this configuration. - - Here are the relevant configuration options that enable EHCI support: - - System Type -> ATSAMA5 Peripheral Support - CONFIG_SAMA5_UHPHS=y : USB Host High Speed - - System Type -> USB High Speed Host driver options - CONFIG_SAMA5_EHCI=y : High-speed EHCI support - CONFIG_SAMA5_OHCI=y : Low/full-speed OHCI support - : Defaults for values probably OK for both - Device Drivers - CONFIG_USBHOST=y : Enable USB host support - CONFIG_USBHOST_ISOC_DISABLE=y : Isochronous endpoints not needed - - Device Drivers -> USB Host Driver Support - CONFIG_USBHOST_ISOC_DISABLE=y : Isochronous endpoints not used - CONFIG_USBHOST_MSC=y : Enable the mass storage class driver - CONFIG_USBHOST_HIDKBD=y : Enable the HID keybaord class driver - : Defaults for values probably OK for both - - Library Routines - CONFIG_SCHED_WORKQUEUE=y : Worker thread support is required - - Application Configuration -> NSH Library - CONFIG_NSH_ARCHINIT=y : NSH board-initialization - - Example Usage: - - NuttShell (NSH) NuttX-6.29 - nsh> ls /dev - /dev: - console - mtdblock0 - null - ttyS0 - - Here a USB FLASH stick is inserted. Nothing visible happens in the - the shell. But a new device will appear: - - nsh> ls /dev - /dev: - console - mtdblock0 - null - sda - ttyS0 - nsh> mount -t vfat /dev/sda /mnt/sda - nsh> ls -l /mnt/sda - /mnt/sda: - -rw-rw-rw- 8788 viminfo - drw-rw-rw- 0 .Trash-1000/ - -rw-rw-rw- 3378 zmodem.patch - -rw-rw-rw- 1503 sz-1.log - -rw-rw-rw- 613 .bashrc - - Or, if a (supported) USB keyboard is connected, a /dev/kbda device - will appear: - - nsh> ls /dev - /dev: - console - kbda - mtdblock0 - null - ttyS0 - - /dev/kbda is a read-only serial device. Reading from /dev/kbda will - get keyboard input as ASCII data (other encodings are possible): - - nsh> cat /dev/kbda + in this configuration. See the section above entitle "USB High-Speed Host" + for relevant configuration information. 10. Support SAMA5D3 TRNG peripheral is enabled so that it provides - /dev/random. The following configuration settings are relevant: - - System Type: - CONFIG_SAMA5_TRNG=y : Enable the TRNG peripheral - - Drivers (automatically selected): - CONFIG_DEV_RANDOM=y : Enable /dev/random + /dev/random. See the section entitled "TRNG and /dev/random" + above for detailed configuration information. The following features are *not* enabled in the demo configuration but might be of some use to you: - 10. The RTC supports an alarm that may be enable with the following settings. - However, there is nothing in the system that currently makes use of this - alarm. - - Drivers: - CONFIG_RTC_ALARM=y : Enable the RTC alarm - - Library Routines - CONFIG_SCHED_WORKQUEUE=y : Alarm needs work queue support - 11. Debugging USB. There is normal console debug output available that can be enabled with CONFIG_DEBUG + CONFIG_DEBUG_USB. However, USB operation is very time critical and enabling this debug output WILL @@ -1953,26 +2558,8 @@ Configurations CONFIG_ARMV7A_TOOLCHAIN_CODESOURCERYW=y : CodeSourcery for Windows 3. This configuration executes out of CS0 NOR flash and can only - be loaded via SAM-BA. These are the relevant configuration options - the define the NOR FLASH configuration: - - CONFIG_SAMA5_BOOT_CS0FLASH=y : Boot from FLASH on CS0 - CONFIG_BOOT_RUNFROMFLASH=y : Run in place on FLASH (vs copying to RAM) - - CONFIG_SAMA5_EBICS0=y : Enable CS0 external memory - CONFIG_SAMA5_EBICS0_SIZE=134217728 : Memory size is 128KB - CONFIG_SAMA5_EBICS0_NOR=y : Memory type is NOR FLASH - - CONFIG_FLASH_START=0x10000000 : Physical FLASH start address - CONFIG_FLASH_VSTART=0x10000000 : Virtual FLASH start address - CONFIG_FLASH_SIZE=134217728 : FLASH size (again) - - CONFIG_RAM_START=0x00300400 : Data stored after page table - CONFIG_RAM_VSTART=0x00300400 - CONFIG_RAM_SIZE=114688 : Available size of 128KB - 16KB for page table - - NOTE: In order to boot in this configuration, you need to close the - BMS jumper. + be loaded via SAM-BA. The are the relevant configuration options + are provided above in the section entitled "NOR FLASH Support". 4. This configuration has support for NSH built-in applications enabled. However, no built-in applications are selected in the base configuration. @@ -1981,663 +2568,44 @@ Configurations by default, there are no block drivers intialized. The FAT file system can still be used to create RAM disks. - 6. SDRAM support can be enabled by adding the following to your NuttX - configuration file: - - System Type->ATSAMA5 Peripheral Support - CONFIG_SAMA5_MPDDRC=y : Enable the DDR controller - - System Type->External Memory Configuration - CONFIG_SAMA5_DDRCS=y : Tell the system that DRAM is at the DDR CS - CONFIG_SAMA5_DDRCS_SIZE=268435456 : 2Gb DRAM -> 256GB - CONFIG_SAMA5_DDRCS_LPDDR2=y : Its DDR2 - CONFIG_SAMA5_MT47H128M16RT=y : This is the type of DDR2 - - Now that you have SDRAM enabled, what are you going to do with it? One - thing you can is add it to the heap - - System Type->Heap Configuration - CONFIG_SAMA5_DDRCS_HEAP=y : Add the SDRAM to the heap - CONFIG_SAMA5_DDRCS_HEAP_OFFSET=0 - CONFIG_SAMA5_DDRCS_HEAP_SIZE=268435456 - - Memory Management - CONFIG_MM_REGIONS=2 : Two memory regions: ISRAM and SDRAM - - Another thing you could do is to enable the RAM test built-in - application: - - 7. You can enable the NuttX RAM test that may be used to verify the - external SDAM. To do this, keep the SDRAM out of the heap so that - it can be tested without crashing programs using the memory: + 6. SDRAM support can be enabled by modifying your NuttX configuration as + described above in the paragraph entitle "SDRAM Support" - System Type->Heap Configuration - CONFIG_SAMA5_DDRCS_HEAP=n : Don't add the SDRAM to the heap - - Memory Management - CONFIG_MM_REGIONS=1 : One memory regions: ISRAM - - Then enable the RAM test built-in application: - - Application Configuration->System NSH Add-Ons->Ram Test - CONFIG_SYSTEM_RAMTEST=y - - In this configuration, the SDRAM is not added to heap and so is not - excessible to the applications. So the RAM test can be freely - executed against the SRAM memory beginning at address 0x2000:0000 - (DDR CS): - - nsh> ramtest -h - Usage: <noname> [-w|h|b] <hex-address> <decimal-size> - - Where: - <hex-address> starting address of the test. - <decimal-size> number of memory locations (in bytes). - -w Sets the width of a memory location to 32-bits. - -h Sets the width of a memory location to 16-bits (default). - -b Sets the width of a memory location to 8-bits. - - To test the entire external 256MB SRAM: - - nsh> ramtest -w 20000000 268435456 - RAMTest: Marching ones: 20000000 268435456 - RAMTest: Marching zeroes: 20000000 268435456 - RAMTest: Pattern test: 20000000 268435456 55555555 aaaaaaaa - RAMTest: Pattern test: 20000000 268435456 66666666 99999999 - RAMTest: Pattern test: 20000000 268435456 33333333 cccccccc - RAMTest: Address-in-address test: 20000000 268435456 - - 8. The Embest or Ronetix CPU module includes an Atmel AT25DF321A, + 7. The Embest or Ronetix CPU module includes an Atmel AT25DF321A, 32-megabit, 2.7-volt SPI serial flash. Support for that serial FLASH can be enabled by modifying the NuttX configuration as - follows: - - System Type -> SAMA5 Peripheral Support - CONFIG_SAMA5_SPI0=y : Enable SPI0 - - Device Drivers -> SPI Driver Support - CONFIG_SPI=y : Enable SPI support - CONFIG_SPI_EXCHANGE=y : Support the exchange method - - Device Drivers -> Memory Technology Device (MTD) Support - CONFIG_MTD=y : Enable MTD support - CONFIG_MTD_AT25=y : Enable the AT25 driver - CONFIG_AT25_SPIMODE=0 : Use SPI mode 0 - CONFIG_AT25_SPIFREQUENCY=10000000 : Use SPI frequency 10MHz + described above in the paragraph entitled "AT25 Serial FLASH". - The AT25 is capable of higher SPI rates than this. I have not - experimented a lot, but at 20MHz, the behavior is not the same with - all CM modules. This lower rate gives more predictable performance. - - Application Configuration -> NSH Library - CONFIG_NSH_ARCHINIT=y : NSH board-initialization - - Board Selection - CONFIG_SAMA5_AT25_AUTOMOUNT=y : Mounts AT25 for NSH - CONFIG_SAMA5_AT25_FTL=y : Create block driver for FAT - - The SPI driver can be built to do polled or DMA SPI data transfers. - The following additional changes will enable SPI DMA: - - System Type -> SAMA5 Peripheral Support - CONFIG_SAMA5_DMAC0=y : Enable DMA controller 0 - - System Type -> SPI device driver options - CONFIG_SAMA5_SPI_DMA=y : Use DMA for SPI transfers - CONFIG_SAMA5_SPI_DMATHRESHOLD=4 : Don't DMA for small transfers - - NOTE that you must close JP1 on the Embest/Ronetix board in - order to enable the AT25 FLASH chip select. - - You can then format the AT25 FLASH for a FAT file system and mount - the file system at /mnt/at25 using these NSH commands: - - nsh> mkfatfs /dev/mtdblock0 - nsh> mount -t vfat /dev/mtdblock0 /mnt/at25 - - Then you an use the FLASH as a normal FAT file system: - - nsh> echo "This is a test" >/mnt/at25/atest.txt - nsh> ls -l /mnt/at25 - /mnt/at25: - -rw-rw-rw- 16 atest.txt - nsh> cat /mnt/at25/atest.txt - This is a test - - 9. Enabling HSMCI support. The SAMA5D3x-EK provides a two SD memory card + 8. Enabling HSMCI support. The SAMA5D3x-EK provides a two SD memory card slots: (1) a full size SD card slot (J7 labeled MCI0), and (2) a microSD memory card slot (J6 labeled MCI1). The full size SD card slot connects via HSMCI0; the microSD connects vi HSMCI1. Support - for both SD slots can be enabled with the following settings: - - System Type->ATSAMA5 Peripheral Support - CONFIG_SAMA5_HSMCI0=y : Enable HSMCI0 support - CONFIG_SAMA5_HSMCI1=y : Enable HSMCI1 support - CONFIG_SAMA5_DMAC0=y : DMAC0 is needed by HSMCI0 - CONFIG_SAMA5_DMAC1=y : DMAC1 is needed by HSMCI1 - - System Type - CONFIG_SAMA5_PIO_IRQ=y : PIO interrupts needed - CONFIG_SAMA5_PIOD_IRQ=y : Card detect pins are on PIOD - - Device Drivers -> MMC/SD Driver Support - CONFIG_MMCSD=y : Enable MMC/SD support - CONFIG_MMSCD_NSLOTS=1 : One slot per driver instance - CONFIG_MMCSD_HAVECARDDETECT=y : Supports card-detect PIOs - CONFIG_MMCSD_MMCSUPPORT=n : Interferes with some SD cards - CONFIG_MMCSD_SPI=n : No SPI-based MMC/SD support - CONFIG_MMCSD_SDIO=y : SDIO-based MMC/SD support - CONFIG_SDIO_DMA=y : Use SDIO DMA - CONFIG_SDIO_BLOCKSETUP=y : Needs to know block sizes - - Library Routines - CONFIG_SCHED_WORKQUEUE=y : Driver needs work queue support - - Application Configuration -> NSH Library - CONFIG_NSH_ARCHINIT=y : NSH board-initialization - - Using the SD card: - - 1) After booting, the HSCMI devices will appear as /dev/mmcsd0 - and /dev/mmcsd1. - - 2) If you try mounting an SD card with nothing in the slot, the - mount will fail: - - nsh> mount -t vfat /dev/mmcsd1 /mnt/sd1 - nsh: mount: mount failed: 19 - - NSH can be configured to provide errors as strings instead of - numbers. But in this case, only the error number is reported. - The error numbers can be found in nuttx/include/errno.h: - - #define ENODEV 19 - #define ENODEV_STR "No such device" - - So the mount command is saying that there is no device or, more - correctly, that there is no card in the SD card slot. - - 3) Inserted the SD card. Then the mount should succeed. - - nsh> mount -t vfat /dev/mmcsd1 /mnt/sd1 - nsh> ls /mnt/sd1 - /mnt/sd1: - atest.txt - nsh> cat /mnt/sd1/atest.txt - This is a test - - 3) Before removing the card, you must umount the file system. This - is equivalent to "ejecting" or "safely removing" the card on - Windows: It flushes any cached data to the card and makes the SD - card unavailable to the applications. + for both SD slots can be enabled with the settings provided in the + paragraph entitled "HSMCI Card Slots" above. - nsh> umount -t /mnt/sd1 + 9. Support the USB low-, high- and full-speed OHCI host driver can be enabled + by changing the NuttX configuration file as described in the section + entitled "USB High-Speed Host" above. - It is now safe to remove the card. NuttX provides into callbacks - that can be used by an application to automatically unmount the - volume when it is removed. But those callbacks are not used in - this configuration. + 10. Support the USB high-speed USB device driver (UDPHS) can be enabled + by changing the NuttX configuration file as described above in the + section entitled "USB High-Speed Device." - 10. Support the USB low/full-speed OHCI host driver can be enabled by changing - the NuttX configuration file as follows: + 11. AT24 Serial EEPROM. A AT24C512 Serial EEPPROM was used for tested + I2C. There is, however, no AT24 EEPROM on board the SAMA5D3x-EK: + The serial EEPROM was mounted on an external adaptor board and + connected to the SAMA5D3x-EK thusly. See the section above entitle + "AT24 Serial EEPROM" for further information. - System Type -> ATSAMA5 Peripheral Support - CONFIG_SAMA5_UHPHS=y : USB Host High Speed + 12. I2C Tool. NuttX supports an I2C tool at apps/system/i2c that can be + used to peek and poke I2C devices. See the discussion above under + "I2C Tool" for detailed configuration settings. - System Type -> USB High Speed Host driver options - CONFIG_SAMA5_OHCI=y : Low/full-speed OHCI support - : Defaults for values probably OK - Device Drivers - CONFIG_USBHOST=y : Enable USB host support + 13. Networking support via the can be added to NSH by modifying the + configuration. See the "Networking" section above for detailed + configuration settings. - Device Drivers -> USB Host Driver Support - CONFIG_USBHOST_ISOC_DISABLE=y : Isochronous endpoints not used - CONFIG_USBHOST_MSC=y : Enable the mass storage class driver - - Library Routines - CONFIG_SCHED_WORKQUEUE=y : Worker thread support is required - - Application Configuration -> NSH Library - CONFIG_NSH_ARCHINIT=y : NSH board-initialization - - NOTE: When OHCI is selected, the SAMA5 will operate at 384MHz instead - of 396MHz. This is so that the PLL generates a frequency which is a - multiple of the 48MHz needed for OHCI. The delay loop calibration - values that are used will be off slightly because of this. - - 11. Support the USB high-speed EHCI host driver can be enabled by changing - the NuttX configuration file as follows. If EHCI is enabled by itself, - then only high-speed devices can be supported. If OHCI is also enabled, - then all low-, full-, and high speed devices will work. - - System Type -> ATSAMA5 Peripheral Support - CONFIG_SAMA5_UHPHS=y : USB Host High Speed - - System Type -> USB High Speed Host driver options - CONFIG_SAMA5_EHCI=y : High-speed EHCI support - CONFIG_SAMA5_OHCI=y : Low/full-speed OHCI support - : Defaults for values probably OK for both - Device Drivers - CONFIG_USBHOST=y : Enable USB host support - CONFIG_USBHOST_INT_DISABLE=y : Interrupt endpoints not needed - CONFIG_USBHOST_ISOC_DISABLE=y : Isochronous endpoints not needed - - Device Drivers -> USB Host Driver Support - CONFIG_USBHOST_ISOC_DISABLE=y : Isochronous endpoints not used - CONFIG_USBHOST_MSC=y : Enable the mass storage class driver - - Library Routines - CONFIG_SCHED_WORKQUEUE=y : Worker thread support is required - - Application Configuration -> NSH Library - CONFIG_NSH_ARCHINIT=y : NSH board-initialization - - Debugging USB Host. There is normal console debug output available - that can be enabled with CONFIG_DEBUG + CONFIG_DEBUG_USB. However, - USB host operation is very time critical and enabling this debug - output might interfere with the operation of the UDPHS. USB host - tracing is a less invasive way to get debug information: If tracing - is enabled, the USB host will save encoded trace output in in-memory - buffer; if the USB monitor is also enabled, that trace buffer will be - periodically emptied and dumped to the system logging device (the - serial console in this configuration): - - Device Drivers -> "USB Host Driver Support: - CONFIG_USBHOST_TRACE=y : Enable USB host trace feature - CONFIG_USBHOST_TRACE_NRECORDS=256 : Buffer 256 records in memory - CONFIG_USBHOST_TRACE_VERBOSE=y : Buffer everything - - Application Configuration -> NSH LIbrary: - CONFIG_NSH_USBDEV_TRACE=n : No builtin tracing from NSH - CONFIG_NSH_ARCHINIT=y : Automatically start the USB monitor - - Application Configuration -> System NSH Add-Ons: - CONFIG_SYSTEM_USBMONITOR=y : Enable the USB monitor daemon - CONFIG_SYSTEM_USBMONITOR_STACKSIZE=2048 : USB monitor daemon stack size - CONFIG_SYSTEM_USBMONITOR_PRIORITY=50 : USB monitor daemon priority - CONFIG_SYSTEM_USBMONITOR_INTERVAL=1 : Dump trace data every second - - NOTE: If USB debug output is also enabled, both outpus will appear - on the serial console. However, the debug output will be - asynchronous with the trace output and, hence, difficult to - interpret. - - 12. Support the USB high-speed USB device driver (UDPHS) can be enabled - by changing the NuttX configuration file as follows: - - Device Drivers -> USB Device Driver Support - CONFIG_USBDEV=y : Enable USB device support - CONFIG_USBDEV_DMA=y : Device uses DMA - CONFIG_USBDEV_DUALSPEED=y : Device support High and Full Speed - - System Type -> ATSAMA5 Peripheral Support - CONFIG_SAMA5_UDPHS=y : Enable UDPHS High Speed USB device - - Application Configuration -> NSH Library - CONFIG_NSH_ARCHINIT=y : NSH board-initialization - - You also need to select a device-side class driver for the USB device, - This will select the CDC/ACM serial device. Defaults for the other - options should be okay. - - Device Drivers -> USB Device Driver Support - CONFIG_CDCACM=y : Enable the CDC/ACM device - CONFIG_CDCACM_BULKIN_REQLEN=768 : Default too small for high-speed - - The following setting enables an example that can can be used to - control the CDC/ACM device. It will add two new NSH commands: - (1) sercon will connect the USB serial device (creating /dev/ttyACM0), - and (2) serdis which will disconnect the USB serial device (destroying - /dev/ttyACM0). - - Application Configuration -> Examples: - CONFIG_SYSTEM_CDCACM=y : Enable an CDC/ACM example - - Debugging USB Device. There is normal console debug output available - that can be enabled with CONFIG_DEBUG + CONFIG_DEBUG_USB. However, - USB device operation is very time critical and enabling this debug - output WILL interfere with the operation of the UDPHS. USB device - tracing is a less invasive way to get debug information: If tracing - is enabled, the USB device will save encoded trace output in in-memory - buffer; if the USB monitor is also enabled, that trace buffer will be - periodically emptied and dumped to the system logging device (the - serial console in this configuration): - - Device Drivers -> "USB Device Driver Support: - CONFIG_USBDEV_TRACE=y : Enable USB trace feature - CONFIG_USBDEV_TRACE_NRECORDS=256 : Buffer 256 records in memory - CONFIG_USBDEV_TRACE_STRINGS=y : (optional) - - Application Configuration -> NSH LIbrary: - CONFIG_NSH_USBDEV_TRACE=n : No builtin tracing from NSH - CONFIG_NSH_ARCHINIT=y : Automatically start the USB monitor - - Application Configuration -> System NSH Add-Ons: - CONFIG_SYSTEM_USBMONITOR=y : Enable the USB monitor daemon - CONFIG_SYSTEM_USBMONITOR_STACKSIZE=2048 : USB monitor daemon stack size - CONFIG_SYSTEM_USBMONITOR_PRIORITY=50 : USB monitor daemon priority - CONFIG_SYSTEM_USBMONITOR_INTERVAL=1 : Dump trace data every second - CONFIG_SYSTEM_USBMONITOR_TRACEINIT=y : Enable TRACE output - CONFIG_SYSTEM_USBMONITOR_TRACECLASS=y - CONFIG_SYSTEM_USBMONITOR_TRACETRANSFERS=y - CONFIG_SYSTEM_USBMONITOR_TRACECONTROLLER=y - CONFIG_SYSTEM_USBMONITOR_TRACEINTERRUPTS=y - - NOTE: If USB debug output is also enabled, both outpus will appear - on the serial console. However, the debug output will be - asynchronous with the trace output and, hence, difficult to - interpret. - - 13. AT24 Serial EEPROM. A AT24C512 Serial EEPPROM was used for tested - I2C. There are other I2C/TWI devices on-board, but the serial - EEPROM is the simplest test. - - There is, however, no AT24 EEPROM on board the SAMA5D3x-EK: The - serial EEPROM was mounted on an external adaptor board and - connected to the SAMA5D3x-EK thusly: - - - VCC -- VCC - - GND -- GND - - TWCK0(PA31) -- SCL - - TWD0(PA30) -- SDA - - By default, PA30 and PA31 are SWJ-DP pins, it can be used as a pin - for TWI peripheral in the end application. - - The following configuration settings were used: - - System Type -> SAMA5 Peripheral Support - CONFIG_SAMA5_TWI0=y : Enable TWI0 - - System Type -> TWI device driver options - SAMA5_TWI0_FREQUENCY=100000 : Select a TWI frequency - - Device Drivers -> I2C Driver Support - CONFIG_I2C=y : Enable I2C support - CONFIG_I2C_TRANSFER=y : Driver supports the transfer() method - CONFIG_I2C_WRITEREAD=y : Driver supports the writeread() method - - Device Drivers -> Memory Technology Device (MTD) Support - CONFIG_MTD=y : Enable MTD support - CONFIG_MTD_AT24XX=y : Enable the AT24 driver - CONFIG_AT24XX_SIZE=512 : Specifies the AT 24C512 part - CONFIG_AT24XX_ADDR=0x53 : AT24 I2C address - - Application Configuration -> NSH Library - CONFIG_NSH_ARCHINIT=y : NSH board-initialization - - File systems - CONFIG_NXFFS=y : Enables the NXFFS file system - CONFIG_NXFFS_PREALLOCATED=y : Required - : Other defaults are probably OK - - Board Selection - CONFIG_SAMA5_AT24_AUTOMOUNT=y : Mounts AT24 for NSH - CONFIG_SAMA5_AT24_NXFFS=y : Mount the AT24 using NXFFS - - You can then format the AT25 FLASH for a FAT file system and mount - the file system at /mnt/at24 using these NSH commands: - - nsh> mkfatfs /dev/mtdblock0 - nsh> mount -t vfat /dev/mtdblock0 /mnt/at24 - - Then you an use the FLASH as a normal FAT file system: - - nsh> echo "This is a test" >/mnt/at24/atest.txt - nsh> ls -l /mnt/at24 - /mnt/at24: - -rw-rw-rw- 16 atest.txt - nsh> cat /mnt/at24/atest.txt - This is a test - - 14. I2C Tool. NuttX supports an I2C tool at apps/system/i2c that can be - used to peek and poke I2C devices. That tool cal be enabled by - setting the following: - - System Type -> SAMA5 Peripheral Support - CONFIG_SAMA5_TWI0=y : Enable TWI0 - CONFIG_SAMA5_TWI1=y : Enable TWI1 - CONFIG_SAMA5_TWI2=y : Enable TWI2 - - System Type -> TWI device driver options - SAMA5_TWI0_FREQUENCY=100000 : Select a TWI0 frequency - SAMA5_TWI1_FREQUENCY=100000 : Select a TWI1 frequency - SAMA5_TWI2_FREQUENCY=100000 : Select a TWI2 frequency - - Device Drivers -> I2C Driver Support - CONFIG_I2C=y : Enable I2C support - CONFIG_I2C_TRANSFER=y : Driver supports the transfer() method - CONFIG_I2C_WRITEREAD=y : Driver supports the writeread() method - - Application Configuration -> NSH Library - CONFIG_SYSTEM_I2CTOOL=y : Enable the I2C tool - CONFIG_I2CTOOL_MINBUS=0 : TWI0 has the minimum bus number 0 - CONFIG_I2CTOOL_MAXBUS=2 : TWI2 has the maximum bus number 2 - CONFIG_I2CTOOL_DEFFREQ=100000 : Pick a consistent frequency - - The I2C tool has extensive help that can be accessed as follows: - - nsh> i2c help - Usage: i2c <cmd> [arguments] - Where <cmd> is one of: - - Show help : ? - List busses : bus - List devices : dev [OPTIONS] <first> <last> - Read register : get [OPTIONS] [<repititions>] - Show help : help - Write register: set [OPTIONS] <value> [<repititions>] - Verify access : verf [OPTIONS] [<value>] [<repititions>] - - Where common "sticky" OPTIONS include: - [-a addr] is the I2C device address (hex). Default: 03 Current: 03 - [-b bus] is the I2C bus number (decimal). Default: 0 Current: 0 - [-r regaddr] is the I2C device register address (hex). Default: 00 Current: 00 - [-w width] is the data width (8 or 16 decimal). Default: 8 Current: 8 - [-s|n], send/don't send start between command and data. Default: -n Current: -n - [-i|j], Auto increment|don't increment regaddr on repititions. Default: NO Current: NO - [-f freq] I2C frequency. Default: 100000 Current: 100000 - - NOTES: - o Arguments are "sticky". For example, once the I2C address is - specified, that address will be re-used until it is changed. - - WARNING: - o The I2C dev command may have bad side effects on your I2C devices. - Use only at your own risk. - - As an example, the I2C dev comman can be used to list all devices - responding on TWI0 (the default) like this: - - nsh> i2c dev 0x03 0x77 - 0 1 2 3 4 5 6 7 8 9 a b c d e f - 00: -- -- -- -- -- -- -- -- -- -- -- -- -- - 10: -- -- -- -- -- -- -- -- -- -- 1a -- -- -- -- -- - 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - 30: -- -- -- -- -- -- -- -- -- 39 -- -- -- 3d -- -- - 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - 60: 60 -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- - 70: -- -- -- -- -- -- -- -- - nsh> - - Address 0x1a is the WM8904. Address 0x39 is the SIL9022A. I am - not sure what is at address 0x3d and 0x60 - - 15. Networking support via the can be added to NSH be selecting the - following configuration options. The SAMA5D3x supports two different - Ethernet MAC peripherals: (1) The 10/100Base-T EMAC peripheral and - and (2) the 10/100/1000Base-T GMAC peripheral. Only the SAMA5D31 - and SAMAD35 support the EMAC peripheral; Only the SAMA5D33, SAMA5D34, - and SAMA5D35 support the GMAC perpheral! NOTE that the SAMA5D35 - supports both! - - a) Selecting the EMAC peripheral: - - System Type - CONFIG_ARCH_CHIP_ATSAMA5D31=y : SAMA5D31 or SAMAD35 support EMAC - CONFIG_ARCH_CHIP_ATSAMA5D35=y : (others do not) - - System Type -> SAMA5 Peripheral Support - CONFIG_SAMA5_EMAC=y : Enable the EMAC peripheral - - System Type -> EMAC device driver options - CONFIG_SAMA5_EMAC_NRXBUFFERS=16 : Set aside some RS and TX buffers - CONFIG_SAMA5_EMAC_NTXBUFFERS=4 - CONFIG_SAMA5_EMAC_PHYADDR=1 : KSZ8051 PHY is at address 1 - CONFIG_SAMA5_EMAC_AUTONEG=y : Use autonegotiation - CONFIG_SAMA5_EMAC_RMII=y : Either MII or RMII interface should work - CONFIG_SAMA5_EMAC_PHYSR=30 : Address of PHY status register on KSZ8051 - CONFIG_SAMA5_EMAC_PHYSR_ALTCONFIG=y : Needed for KSZ8051 - CONFIG_SAMA5_EMAC_PHYSR_ALTMODE=0x7 : " " " " " " - CONFIG_SAMA5_EMAC_PHYSR_10HD=0x1 : " " " " " " - CONFIG_SAMA5_EMAC_PHYSR_100HD=0x2 : " " " " " " - CONFIG_SAMA5_EMAC_PHYSR_10FD=0x5 : " " " " " " - CONFIG_SAMA5_EMAC_PHYSR_100FD=0x6 : " " " " " " - - PHY selection. Later in the configuration steps, you will need to - select the KSZ8051 PHY for EMAC (See below) - - b) Selecting the GMAC peripheral: - - System Type - CONFIG_ARCH_CHIP_ATSAMA5D33=y : SAMA5D31, SAMA5D33 and SAMAD35 - CONFIG_ARCH_CHIP_ATSAMA5D34=y : support GMAC (others do not) - CONFIG_ARCH_CHIP_ATSAMA5D35=y : - - System Type -> SAMA5 Peripheral Support - CONFIG_SAMA5_GMAC=y : Enable the GMAC peripheral - - System Type -> GMAC device driver options - CONFIG_SAMA5_GMAC_NRXBUFFERS=16 : Set aside some RS and TX buffers - CONFIG_SAMA5_GMAC_NTXBUFFERS=4 - CONFIG_SAMA5_GMAC_PHYADDR=1 : KSZ8051 PHY is at address 1 - CONFIG_SAMA5_GMAC_AUTONEG=y : Use autonegotiation - - If both EMAC and GMAC are selected, you will also need: - - CONFIG_SAMA5_GMAC_ISETH0=y : GMAC is "eth0"; EMAC is "eth1" - - PHY selection. Later in the configuration steps, you will need to - select the KSZ9021/31 PHY for GMAC (See below) - - c) Common configuration settings - - Networking Support - CONFIG_NET=y : Enable Neworking - CONFIG_NET_SOCKOPTS=y : Enable socket operations - CONFIG_NET_BUFSIZE=562 : Maximum packet size (MTD) 1518 is more standard - CONFIG_NET_RECEIVE_WINDOW=562 : Should be the same as CONFIG_NET_BUFSIZE - CONFIG_NET_TCP=y : Enable TCP/IP networking - CONFIG_NET_TCPBACKLOG=y : Support TCP/IP backlog - CONFIG_NET_TCP_READAHEAD_BUFSIZE=562 Read-ahead buffer size - CONFIG_NET_UDP=y : Enable UDP networking - CONFIG_NET_ICMP=y : Enable ICMP networking - CONFIG_NET_ICMP_PING=y : Needed for NSH ping command - : Defaults should be okay for other options - Device drivers -> Network Device/PHY Support - CONFIG_NETDEVICES=y : Enabled PHY selection - CONFIG_ETH0_PHY_KSZ8051=y : Select the KSZ8051 PHY (for EMAC), OR - CONFIG_ETH0_PHY_KSZ90x1=y : Select teh KSZ9021/31 PHY (for GMAC) - - Application Configuration -> Network Utilities - CONFIG_NETUTILS_RESOLV=y : Enable host address resolution - CONFIG_NETUTILS_TELNETD=y : Enable the Telnet daemon - CONFIG_NETUTILS_TFTPC=y : Enable TFTP data file transfers for get and put commands - CONFIG_NETUTILS_UIPLIB=y : Network library support is needed - CONFIG_NETUTILS_WEBCLIENT=y : Needed for wget support - : Defaults should be okay for other options - Application Configuration -> NSH Library - CONFIG_NSH_TELNET=y : Enable NSH session via Telnet - CONFIG_NSH_IPADDR=0x0a000002 : Select an IP address - CONFIG_NSH_DRIPADDR=0x0a000001 : IP address of gateway/host PC - CONFIG_NSH_NETMASK=0xffffff00 : Netmask - CONFIG_NSH_NOMAC=y : Need to make up a bogus MAC address - : Defaults should be okay for other options - - d) Using the network with NSH - - So what can you do with this networking support? First you see that - NSH has several new network related commands: - - ifconfig, ifdown, ifup: Commands to help manage your network - get and put: TFTP file transfers - wget: HTML file transfers - ping: Check for access to peers on the network - Telnet console: You can access the NSH remotely via telnet. - - You can also enable other add on features like full FTP or a Web - Server or XML RPC and others. There are also other features that - you can enable like DHCP client (or server) or network name - resolution. - - By default, the IP address of the SAMA5D3x-EK will be 10.0.0.2 and - it will assume that your host is the gateway and has the IP address - 10.0.0.1. - - nsh> ifconfig - eth0 HWaddr 00:e0:de:ad:be:ef at UP - IPaddr:10.0.0.2 DRaddr:10.0.0.1 Mask:255.255.255.0 - - You can use ping to test for connectivity to the host (Careful, - Window firewalls usually block ping-related ICMP traffic). On the - target side, you can: - - nsh> ping 10.0.0.1 - PING 10.0.0.1 56 bytes of data - 56 bytes from 10.0.0.1: icmp_seq=1 time=0 ms - 56 bytes from 10.0.0.1: icmp_seq=2 time=0 ms - 56 bytes from 10.0.0.1: icmp_seq=3 time=0 ms - 56 bytes from 10.0.0.1: icmp_seq=4 time=0 ms - 56 bytes from 10.0.0.1: icmp_seq=5 time=0 ms - 56 bytes from 10.0.0.1: icmp_seq=6 time=0 ms - 56 bytes from 10.0.0.1: icmp_seq=7 time=0 ms - 56 bytes from 10.0.0.1: icmp_seq=8 time=0 ms - 56 bytes from 10.0.0.1: icmp_seq=9 time=0 ms - 56 bytes from 10.0.0.1: icmp_seq=10 time=0 ms - 10 packets transmitted, 10 received, 0% packet loss, time 10100 ms - - NOTE: In this configuration is is normal to have packet loss > 0% - the first time you ping due to the default handling of the ARP - table. - - On the host side, you should also be able to ping the SAMA5D3-EK: - - $ ping 10.0.0.2 - - You can also log into the NSH from the host PC like this: - - $ telnet 10.0.0.2 - Trying 10.0.0.2... - Connected to 10.0.0.2. - Escape character is '^]'. - sh_telnetmain: Session [3] Started - - NuttShell (NSH) NuttX-6.31 - nsh> help - help usage: help [-v] [<cmd>] - - [ echo ifconfig mkdir mw sleep - ? exec ifdown mkfatfs ping test - cat exit ifup mkfifo ps umount - cp free kill mkrd put usleep - cmp get losetup mh rm wget - dd help ls mount rmdir xd - df hexdump mb mv sh - - Builtin Apps: - nsh> - - NOTE: If you enable this feature, you experience a delay on booting. - That is because the start-up logic waits for the network connection - to be established before starting NuttX. In a real application, you - would probably want to do the network bringup on a separate thread - so that access to the NSH prompt is not delayed. - - This delay will be especially long if the board is not connected to - a network. - - 16. You can enable the touchscreen by modifying the configuration + 14. You can enable the touchscreen by modifying the configuration in the following ways: System Type: @@ -2667,72 +2635,18 @@ Configurations Defaults should be okay for all related settings. - 17. The Real Time Clock/Calendar RTC) may be enabled with these settings: - - System Type: - CONFIG_SAMA5_RTC=y : Enable the RTC driver - - Drivers (these values will be selected automatically): - CONFIG_RTC=y : Use the RTC for system time - CONFIG_RTC_DATETIME=y : RTC supports data/time - - The RTC supports an alarm that may be enable with the following settings. - However, there is nothing in the system that currently makes use of this - alarm. - - Drivers: - CONFIG_RTC_ALARM=y : Enable the RTC alarm - - Library Routines - CONFIG_SCHED_WORKQUEUE=y : Alarm needs work queue support - - 18. This example can be configured to exercise the watchdog timer test - (apps/examples/watchdog). This can be selected with the following - settings in the NuttX configuration file: - - System Type: - CONFIG_SAMA5_WDT=y : Enable the WDT peripheral - : Defaults in "RTC Configuration" should be OK - - Drivers (this will automatically be selected): - CONFIG_WATCHDOG=y : Enables watchdog timer driver support - - Application Configuration -> Eamples - CONFIG_EXAMPLES_WATCHDOG=y : Enable apps/examples/watchdog - - The WDT timer is driven off the slow, 32768Hz clock divided by 128. - As a result, the watchdog a maximum timeout value of 16 seconds. The - SAMA5 WDT may also only be programmed one time; the processor must be - reset before the WDT can be reprogrammed. - - The SAMA5 always boots with the watchdog timer enabled at its maximum - timeout (16 seconds). In the normal case where no watchdog timer driver - has been configured, the watchdog timer is disabled as part of the start - up logic. But, since we are permitted only one opportunity to program - the WDT, we cannot disable the watchdog time if CONFIG_SAMA5_WDT=y. So, - be forewarned: You have only 16 seconds to run your watchdog timer test! - - NOTE: If you are using the norboot program to run from FLASH as I did, - beware that the default version also disables the watchdog. You will - need a special version of norboot with CONFIG_SAMA5_WDT=y. - - 19. This example can be configured to enable the SAMA5 TRNG peripheral so - that it provides /dev/random. The following configuration will enable - the TRNG, /dev/random, and the simple test of /dev/random at - apps/examples/ranadom: - - System Type: - CONFIG_SAMA5_TRNG=y : Enable the TRNG peripheral + 15. The Real Time Clock/Calendar RTC) may be enabled by reconfiguring NuttX. + See the section entitled "RTC" above for detailed configuration settings. - Drivers (automatically selected): - CONFIG_DEV_RANDOM=y : Enable /dev/random + 16. This example can be configured to exercise the watchdog timer test + (apps/examples/watchdog). See the detailed configuration settings in + the section entitled "Watchdog Timer" above. - Applications -> Examples - CONFIG_EXAMPLES_RANDOM=y : Enable apps/examples/random - CONFIG_EXAMPLES_MAXSAMPLES=64 : Default settings are probably OK - CONFIG_EXAMPLES_NSAMPLES=8 + 17. This example can be configured to enable the SAMA5 TRNG peripheral so + that it provides /dev/random. See the section entitled "TRNG and + /dev/random" above for detailed configuration information. - 20. See also the sections above for additional configuration options: + 18. See also the sections above for additional configuration options: "AT24 Serial EEPROM", "CAN Usage", "SAMA5 ADC Support", "SAMA5 PWM Support", "OV2640 Camera Interface", "I2S Audio Support" diff --git a/nuttx/configs/sama5d3x-ek/src/sam_nandflash.c b/nuttx/configs/sama5d3x-ek/src/sam_nandflash.c index 7c3680e21..e8276dc2a 100644 --- a/nuttx/configs/sama5d3x-ek/src/sam_nandflash.c +++ b/nuttx/configs/sama5d3x-ek/src/sam_nandflash.c @@ -57,8 +57,10 @@ #include "up_arch.h" #include "sam_periphclks.h" +#include "sam_pio.h" #include "sam_nand.h" #include "chip/sam_hsmc.h" +#include "chip/sam_pinmap.h" #include "sama5d3x-ek.h" @@ -138,6 +140,22 @@ int board_nandflash_config(int cs) HSMC_MODE_BIT_8 | HSMC_MODE_TDFCYCLES(1); putreg32(regval, SAM_HSMC_MODE(HSMC_CS3)); + /* Configure NAND PIO pins + * + * NAND Interface: + * + * NCS3/NANDCE - Dedicated pin; no configuration needed + * NANDCLE - PE21 + * NANDALE - PE22 + * NRD/NANDOE - Dedicated pin; no configuration needed + * NWE/NANDWE - Dedicated pin; no configuration needed + * NANDRDY - Dedicated pin; no configuration needed + * M_EBI_D0-7 - Dedicated pins; no configuration needed + */ + + sam_configpio(PIO_HSMC_NANDALE); + sam_configpio(PIO_HSMC_NANDCLE); + return OK; } |