zcy
/
tinySA
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4956 35acf78f-673a-0410-8e92-d51de3d6d3f4

master
gdisirio 2012-12-23 10:35:16 +00:00
parent 64431d076b
commit 5089bc85d6
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
os/hal/platforms/STM32F4xx/hal_lld.c
View File

@ -208,14 +208,19 @@ void stm32_clock_init(void) {
RCC->CFGR |= STM32_MCO2PRE | STM32_MCO2SEL | STM32_MCO1PRE | STM32_MCO1SEL |
STM32_RTCPRE | STM32_PPRE2 | STM32_PPRE1 | STM32_HPRE;
/* Flash setup.
Some old revisions of F4x MCUs randomly crashes with compiler
/* Flash setup.*/
#if defined(STM32_USE_REVISION_A_FIX)
/* Some old revisions of F4x MCUs randomly crashes with compiler
optimizations enabled AND flash caches enabled. */
if ((DBGMCU->IDCODE == 0x20006411) && (SCB->CPUID == 0x410FC241))
FLASH->ACR = FLASH_ACR_PRFTEN | STM32_FLASHBITS;
else
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN |
FLASH_ACR_DCEN | STM32_FLASHBITS;
#else
FLASH->ACR = FLASH_ACR_PRFTEN | FLASH_ACR_ICEN |
FLASH_ACR_DCEN | STM32_FLASHBITS;
#endif
/* Switching to the configured clock source if it is different from MSI.*/
#if (STM32_SW != STM32_SW_HSI)