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Diffstat (limited to 'nuttx/configs/mx1ads/README.txt')
| -rw-r--r-- | nuttx/configs/mx1ads/README.txt | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/nuttx/configs/mx1ads/README.txt b/nuttx/configs/mx1ads/README.txt new file mode 100644 index 000000000..59e98c7ba --- /dev/null +++ b/nuttx/configs/mx1ads/README.txt @@ -0,0 +1,172 @@ +README +^^^^^^ + +Toolchain +^^^^^^^^^ + + A GNU GCC-based toolchain is assumed. The files */setenv.sh should + be modified to point to the correct path to the SH toolchain (if + different from the default). + + If you have no ARM toolchain, one can be downloaded from the NuttX + SourceForge download site (https://sourceforge.net/project/showfiles.php?group_id=189573). + + 1. You must have already configured Nuttx in <some-dir>nuttx. + + cd tools + ./configure.sh mx1ads/<sub-dir> + + 2. Download the latest buildroot package into <some-dir> + + 3. unpack + + 4. cd <some-dir>/buildroot + + 5. cp configs/arm-defconfig-4.2.4 .config + + 6. make oldconfig + + 7. make + + 8. Edit setenv.h so that the PATH variable includes the path to the + newly built binaries. + +ARM/i.MX1-specific Configuration Options +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + + CONFIG_ARCH - Identifies the arch/ subdirectory. This should + be set to: + + CONFIG_ARCH=arm + + CONFIG_ARCH_name - For use in C code: + + CONFIG_ARCH_ARM=y + + CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory + + CONFIG_ARCH_CHIP=imx + + CONFIG_ARCH_CHIP_name - For use in C code. Could be line _IMX1, + _IMXL, _IMX21, _IMX27, _IMX31, etc. (not all of which are + supported). + + CONFIG_ARCH_CHIP_IMX1 + + CONFIG_ARCH_BOARD - Identifies the configs subdirectory and + hence, the board that supports the particular chip or SoC. + + CONFIG_ARCH_BOARD=mx1ads (for the Freescale MX1ADS evaluation board) + + CONFIG_ARCH_BOARD_name - For use in C code + + CONFIG_ARCH_BOARD_MX1ADS (for the Spectrum Digital C5471 EVM) + + CONFIG_ARCH_LOOPSPERMSEC - Must be calibrated for correct operation + of delay loops + + CONFIG_ENDIAN_BIG - define if big endian (default is little + endian) + + CONFIG_DRAM_SIZE - Describes the installed DRAM. + + CONFIG_DRAM_START - The start address of installed DRAM + + CONFIG_DRAM_VSTART - The startaddress of DRAM (virtual) + + CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to boards that + have LEDs + + CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt + stack. If defined, this symbol is the size of the interrupt + stack in bytes. If not defined, the user task stacks will be + used during interrupt handling. + + CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions + + IMX specific device driver settings + + CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the + console and ttys0 (default is the UART0). + CONFIG_UARTn_RXBUFSIZE - Characters are buffered as received. + This specific the size of the receive buffer + CONFIG_UARTn_TXBUFSIZE - Characters are buffered before + being sent. This specific the size of the transmit buffer + CONFIG_UARTn_BAUD - The configure BAUD of the UART. Must be + CONFIG_UARTn_BITS - The number of bits. Must be either 7 or 8. + CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity + CONFIG_UARTn_2STOP - Two stop bits + + IMX USB Configuration + + CONFIG_IMX_GIO_USBATTACH + GIO that detects USB attach/detach events + CONFIG_IMX_GIO_USBDPPULLUP + GIO + CONFIG_DMA320_USBDEV_DMA + Enable IMX-specific DMA support + CONFIG_IMX_GIO_USBATTACH=6 + +Configurations +^^^^^^^^^^^^^^ + +Each Neuros OSD configuration is maintained in a sudirectory and +can be selected as follow: + + cd tools + ./configure.sh imxads/<subdir> + cd - + . ./setenv.sh + +Where <subdir> is one of the following: + +ostest +^^^^^^ + +This configuration directory, performs a simple OS test using +examples/ostest. +Configuration Options +^^^^^^^^^^^^^^^^^^^^^ + +In additional to the common configuration options listed in the +file configs/README.txt, there are other configuration options +specific to the IMX: + + CONFIG_ARCH - identifies the arch subdirectory and, hence, the + processor architecture. + CONFIG_ARCH_name - for use in C code. This identifies the + particular chip or SoC that the architecture is implemented + in. + CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory + CONFIG_ARCH_CHIP_name - For use in C code + CONFIG_ARCH_BOARD - identifies the configs subdirectory and, hence, + the board that supports the particular chip or SoC. + CONFIG_ENDIAN_BIG - define if big endian (default is little endian) + CONFIG_ARCH_BOARD_name - for use in C code + CONFIG_BOARD_LOOPSPERMSEC - for delay loops + CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to lpc2148. + CONFIG_DRAM_SIZE - Describes the internal DRAM. + CONFIG_DRAM_START - The start address of internal DRAM + CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions + +IMX specific device driver settings + + CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the + console and ttys0 (default is the UART0). + CONFIG_UARTn_RXBUFSIZE - Characters are buffered as received. + This specific the size of the receive buffer + CONFIG_UARTn_TXBUFSIZE - Characters are buffered before + being sent. This specific the size of the transmit buffer + CONFIG_UARTn_BAUD - The configure BAUD of the UART. Must be + CONFIG_UARTn_BITS - The number of bits. Must be either 7 or 8. + CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity + CONFIG_UARTn_2STOP - Two stop bits + +IMX USB Configuration + + CONFIG_IMX_GIO_USBATTACH + GIO that detects USB attach/detach events + CONFIG_IMX_GIO_USBDPPULLUP + GIO connected to D+. Support software connect/disconnect. + CONFIG_DMA320_USBDEV_DMA + Enable IMX-specific DMA support |