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Added an HSE bypass option to the STM32 clock initialization. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@4157 35acf78f-673a-0410-8e92-d51de3d6d3f4
master
gdisirio 2012-05-03 17:38:29 +00:00
parent 8ed6a8d9e3
commit ad8290460d
5 changed files with 19 additions and 0 deletions
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4
os/hal/platforms/STM32F1xx/hal_lld.c
View File

@ -215,6 +215,10 @@ void stm32_clock_init(void) {
; /* Wait until HSI is the source.*/
#if STM32_HSE_ENABLED
#if defined(STM32_HSE_BYPASS)
/* HSE Bypass.*/
RCC->CR |= RCC_CR_HSEBYP;
#endif
/* HSE activation.*/
RCC->CR |= RCC_CR_HSEON;
while (!(RCC->CR & RCC_CR_HSERDY))

4
os/hal/platforms/STM32F2xx/hal_lld.c
View File

@ -149,6 +149,10 @@ void stm32_clock_init(void) {
; /* Waits until HSI is stable. */
#if STM32_HSE_ENABLED
#if defined(STM32_HSE_BYPASS)
/* HSE Bypass.*/
RCC->CR |= RCC_CR_HSEBYP;
#endif
/* HSE activation.*/
RCC->CR |= RCC_CR_HSEON;
while ((RCC->CR & RCC_CR_HSERDY) == 0)

4
os/hal/platforms/STM32F4xx/hal_lld.c
View File

@ -151,6 +151,10 @@ void stm32_clock_init(void) {
; /* Waits until HSI is stable. */
#if STM32_HSE_ENABLED
#if defined(STM32_HSE_BYPASS)
/* HSE Bypass.*/
RCC->CR |= RCC_CR_HSEBYP;
#endif
/* HSE activation.*/
RCC->CR |= RCC_CR_HSEON;
while ((RCC->CR & RCC_CR_HSERDY) == 0)

4
os/hal/platforms/STM32L1xx/hal_lld.c
View File

@ -165,6 +165,10 @@ void stm32_clock_init(void) {
#endif
#if STM32_HSE_ENABLED
#if defined(STM32_HSE_BYPASS)
/* HSE Bypass.*/
RCC->CR |= RCC_CR_HSEBYP;
#endif
/* HSE activation.*/
RCC->CR |= RCC_CR_HSEON;
while ((RCC->CR & RCC_CR_HSERDY) == 0)

3
readme.txt
View File

@ -117,6 +117,9 @@
3484947)(backported to 2.4.1).
- FIX: Fixed various minor documentation errors (bug 3484942)(backported
to 2.4.1).
- NEW: Added HSE oscillator bypass capability to the STM32 clock
initialization, it is enabled by adding STM32_HSE_BYPASS to your
board.h file.
- NEW: Updated the MSP port to work with the latest MSPGCC compiler (4.6.3
LTS 20120406 unpatched), now the old MSPGCC 3.2.3 is no more supported
(backported to 2.4.1).