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author | Gregory Nutt <gnutt@nuttx.org> | 2015-04-04 19:04:54 -0600 |
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committer | Gregory Nutt <gnutt@nuttx.org> | 2015-04-04 19:04:54 -0600 |
commit | 374860c883d155d1d444d5ca2d0ff747bdf33e1f (patch) | |
tree | 856239cd1797242a90ba4292e023b57e449a7676 /nuttx | |
parent | 7f9d3016cbac11a39083fe4d42625fe65c0d3666 (diff) | |
download | px4-nuttx-374860c883d155d1d444d5ca2d0ff747bdf33e1f.tar.gz px4-nuttx-374860c883d155d1d444d5ca2d0ff747bdf33e1f.tar.bz2 px4-nuttx-374860c883d155d1d444d5ca2d0ff747bdf33e1f.zip |
SAMV71-XULT: Enable SDRAM and the RAM test in the nsh configuration
Diffstat (limited to 'nuttx')
-rw-r--r-- | nuttx/configs/samv71-xult/README.txt | 42 | ||||
-rw-r--r-- | nuttx/configs/samv71-xult/nsh/defconfig | 12 |
2 files changed, 45 insertions, 9 deletions
diff --git a/nuttx/configs/samv71-xult/README.txt b/nuttx/configs/samv71-xult/README.txt index 757e0f6f0..4969f4de2 100644 --- a/nuttx/configs/samv71-xult/README.txt +++ b/nuttx/configs/samv71-xult/README.txt @@ -1110,7 +1110,9 @@ Configuration sub-directories different U[S]ART option is selected, Audio cannot be used with this configuration. - 4. Support for the ILI8488 LCD is enabled. Only the parallel mode is + 4. SDRAM is NOT enabled in this configuration. + + 5. Support for the ILI8488 LCD is enabled. Only the parallel mode is supported at present. As a consequence, the maXTouch Xplained Pro must be connected at the LCD (EXT4) connector. This mode requires: @@ -1118,9 +1120,9 @@ Configuration sub-directories CONFIG_SAMV7_SMC=y : SMC/EBI support CONFIG_SAMV7_XDMAC=y : XDMAC support - 5. The appx/examples/nxlines is enalbed as a built-in application. + 6. The appx/examples/nxlines is enabled as a built-in application. - 6. When the maXTouch Xplained is connected (in any position), a new I2C + 7. When the maXTouch Xplained is connected (in any position), a new I2C address appears at address 0x4a: nsh> i2c dev 3 77 @@ -1295,13 +1297,29 @@ Configuration sub-directories Application Configuration: CONFIG_NSH_BUILTIN_APPS=y : Enable starting apps from NSH command line - 4. SDRAM is not enabled in this configuration. I have enabled SDRAM and - the apps/examples RAM test using this configuration settings: + 4. SDRAM is enabled in this configuration. Here are the relevant + configuration settings: + + System Type + CONFIG_ARMV7M_ICACHE=y + CONFIG_ARMV7M_DCACHE=y + CONFIG_ARMV7M_DCACHE_WRITETHROUGH=y + + The system is configured with DCACHE in write through mode. The + configuration runs with the DCACHE in write back mode, but the SDRAM + configuration fails. That is because the SDRAM initialization + occurs after the D-Cache is initialized (I have not actually tried + in write back mode, it just seems that there woulc be issues. System Type CONFIG_SAMV7_SDRAMC=y CONFIG_SAMV7_SDRAMSIZE=2097152 + SDRAM is not added to the heap in this configuration. To do that + you would need to set CONFIG_SAMV7_SDRAMHEAP=y and CONFIG_MM_REGIONS=2. + Instead, the SDRAM is set up so that is can be used with a destructive + RAM test enabled with this option: + Application Configuration: CONFIG_SYSTEM_RAMTEST=y @@ -1309,7 +1327,19 @@ Configuration sub-directories nsh> ramtest -w 70000000 2097152 - STATUS: As of this writing, SDRAM does not pass the RAM test. + NuttShell (NSH) NuttX-7.8 + nsh> ramtest -w 70000000 2097152 + RAMTest: Marching ones: 70000000 2097152 + RAMTest: Marching zeroes: 70000000 2097152 + RAMTest: Pattern test: 70000000 2097152 55555555 aaaaaaaa + RAMTest: Pattern test: 70000000 2097152 66666666 99999999 + RAMTest: Pattern test: 70000000 2097152 33333333 cccccccc + RAMTest: Address-in-address test: 70000000 2097152 + nsh> + + STATUS: I suspect that the RAM timing configuration is not perfect. + If you run the above RAM test you will see occasional failures after + booting into a certain state. 5. The button test at apps/examples/buttons is included in the configuration. This configuration illustrates (1) use of the buttons diff --git a/nuttx/configs/samv71-xult/nsh/defconfig b/nuttx/configs/samv71-xult/nsh/defconfig index e0589580e..3da56af08 100644 --- a/nuttx/configs/samv71-xult/nsh/defconfig +++ b/nuttx/configs/samv71-xult/nsh/defconfig @@ -123,7 +123,7 @@ CONFIG_ARMV7M_HAVE_ICACHE=y CONFIG_ARMV7M_HAVE_DCACHE=y CONFIG_ARMV7M_ICACHE=y CONFIG_ARMV7M_DCACHE=y -# CONFIG_ARMV7M_DCACHE_WRITETHROUGH is not set +CONFIG_ARMV7M_DCACHE_WRITETHROUGH=y CONFIG_ARMV7M_HAVE_ITCM=y CONFIG_ARMV7M_HAVE_DTCM=y # CONFIG_ARMV7M_ITCM is not set @@ -198,7 +198,7 @@ CONFIG_SAMV7_HSMCI0=y # CONFIG_SAMV7_QSPI is not set # CONFIG_SAMV7_RTC is not set # CONFIG_SAMV7_RTT is not set -# CONFIG_SAMV7_SDRAMC is not set +CONFIG_SAMV7_SDRAMC=y # CONFIG_SAMV7_SMC is not set # CONFIG_SAMV7_SPI0 is not set # CONFIG_SAMV7_SPI1 is not set @@ -239,6 +239,12 @@ CONFIG_SAMV7_GPIOD_IRQ=y # CONFIG_SAMV7_GPIOE_IRQ is not set # +# SDRAM Configuration +# +CONFIG_SAMV7_SDRAMSIZE=2097152 +# CONFIG_SAMV7_SDRAMHEAP is not set + +# # TWIHS device driver options # CONFIG_SAMV7_TWIHS0_FREQUENCY=100000 @@ -979,7 +985,7 @@ CONFIG_I2CTOOL_DEFFREQ=400000 # # RAM test # -# CONFIG_SYSTEM_RAMTEST is not set +CONFIG_SYSTEM_RAMTEST=y # # readline() |