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authorpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2012-04-07 20:54:45 +0000
committerpatacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>2012-04-07 20:54:45 +0000
commitbcb1a538de42c6ac901be52239a9e907734a9e0f (patch)
tree440b149e9a017d48b397c19243363c57cc7ada7b /nuttx/configs/stm3240g-eval/README.txt
parent45ad2f7a8b237cf58518b874326078659ff90011 (diff)
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Fix much replicated typo. STM32 F4 SRAM is CCM, not TCM
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4571 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/stm3240g-eval/README.txt')
-rwxr-xr-xnuttx/configs/stm3240g-eval/README.txt26
1 files changed, 13 insertions, 13 deletions
diff --git a/nuttx/configs/stm3240g-eval/README.txt b/nuttx/configs/stm3240g-eval/README.txt
index 33cf7f39e..5b5c62749 100755
--- a/nuttx/configs/stm3240g-eval/README.txt
+++ b/nuttx/configs/stm3240g-eval/README.txt
@@ -456,11 +456,11 @@ The on-board SRAM can be configured by setting
Configuration Options
---------------------
Internal SRAM is available in all members of the STM32 family. The F4 family
-also contains internal TCM SRAM. This SRAM is different because it cannot
+also contains internal CCM SRAM. This SRAM is different because it cannot
be used for DMA. So if DMA needed, then the following should be defined
-to exclude TCM SRAM from the heap:
+to exclude CCM SRAM from the heap:
- CONFIG_STM32_TCMEXCLUDE : Exclude TCM SRAM from the HEAP
+ CONFIG_STM32_CCMEXCLUDE : Exclude CCM SRAM from the HEAP
In addition to internal SRAM, SRAM may also be available through the FSMC.
In order to use FSMC SRAM, the following additional things need to be
@@ -483,19 +483,19 @@ There are 4 possible SRAM configurations:
Configuration 1. System SRAM (only)
CONFIG_MM_REGIONS == 1
CONFIG_STM32_FSMC_SRAM NOT defined
- CONFIG_STM32_TCMEXCLUDE defined
- Configuration 2. System SRAM and TCM SRAM
+ CONFIG_STM32_CCMEXCLUDE defined
+ Configuration 2. System SRAM and CCM SRAM
CONFIG_MM_REGIONS == 2
CONFIG_STM32_FSMC_SRAM NOT defined
- CONFIG_STM32_TCMEXCLUDE NOT defined
+ CONFIG_STM32_CCMEXCLUDE NOT defined
Configuration 3. System SRAM and FSMC SRAM
CONFIG_MM_REGIONS == 2
CONFIG_STM32_FSMC_SRAM defined
- CONFIG_STM32_TCMEXCLUDE defined
- Configuration 4. System SRAM, TCM SRAM, and FSMC SRAM
+ CONFIG_STM32_CCMEXCLUDE defined
+ Configuration 4. System SRAM, CCM SRAM, and FSMC SRAM
CONFIG_MM_REGIONS == 3
CONFIG_STM32_FSMC_SRAM defined
- CONFIG_STM32_TCMEXCLUDE NOT defined
+ CONFIG_STM32_CCMEXCLUDE NOT defined
STM3240G-EVAL-specific Configuration Options
============================================
@@ -554,7 +554,7 @@ STM3240G-EVAL-specific Configuration Options
CONFIG_DRAM_END=(CONFIG_DRAM_START+CONFIG_DRAM_SIZE)
- CONFIG_STM32_TCMEXCLUDE - Exclude TCM SRAM from the HEAP
+ CONFIG_STM32_CCMEXCLUDE - Exclude CCM SRAM from the HEAP
In addition to internal SRAM, SRAM may also be available through the FSMC.
In order to use FSMC SRAM, the following additional things need to be
@@ -948,9 +948,9 @@ Where <subdir> is one of the following:
4. In order to use SDIO without overruns, DMA must be used. The STM32 F4
has 192Kb of SRAM in two banks: 112Kb of "system" SRAM located at
- 0x2000:0000 and 64Kb of "TCM" SRAM located at 0x1000:0000. It appears
- that you cannot perform DMA from TCM SRAM. The work around that I have now
- is simply to omit the 64Kb of TCM SRAM from the heap so that all memory is
+ 0x2000:0000 and 64Kb of "CCM" SRAM located at 0x1000:0000. It appears
+ that you cannot perform DMA from CCM SRAM. The work around that I have now
+ is simply to omit the 64Kb of CCM SRAM from the heap so that all memory is
allocated from System SRAM. This is done by setting:
CONFIG_MM_REGIONS=1