diff options
| -rw-r--r-- | os/hal/ports/STM32/STM32F30x/hal_lld.c | 9 | ||||
| -rw-r--r-- | os/hal/ports/STM32/STM32F30x/hal_lld.h | 14 |
2 files changed, 20 insertions, 3 deletions
diff --git a/os/hal/ports/STM32/STM32F30x/hal_lld.c b/os/hal/ports/STM32/STM32F30x/hal_lld.c index 7ccac7bcf..53ac4d11b 100644 --- a/os/hal/ports/STM32/STM32F30x/hal_lld.c +++ b/os/hal/ports/STM32/STM32F30x/hal_lld.c @@ -170,9 +170,6 @@ void stm32_clock_init(void) { STM32_PLLSRC | STM32_PPRE1 | STM32_PPRE2 |
STM32_HPRE;
RCC->CFGR2 = STM32_ADC34PRES | STM32_ADC12PRES | STM32_PREDIV;
- RCC->CFGR3 = STM32_UART5SW | STM32_UART4SW | STM32_USART3SW |
- STM32_USART2SW | STM32_TIM8SW | STM32_TIM1SW |
- STM32_I2C2SW | STM32_I2C1SW | STM32_USART1SW;
#if STM32_ACTIVATE_PLL
/* PLL activation.*/
@@ -181,6 +178,12 @@ void stm32_clock_init(void) { ; /* Waits until PLL is stable. */
#endif
+ /* After PLL activation because the special requirements for TIM1 and
+ TIM8 bits.*/
+ RCC->CFGR3 = STM32_UART5SW | STM32_UART4SW | STM32_USART3SW |
+ STM32_USART2SW | STM32_TIM8SW | STM32_TIM1SW |
+ STM32_I2C2SW | STM32_I2C1SW | STM32_USART1SW;
+
/* Flash setup and final clock selection. */
FLASH->ACR = STM32_FLASHBITS;
diff --git a/os/hal/ports/STM32/STM32F30x/hal_lld.h b/os/hal/ports/STM32/STM32F30x/hal_lld.h index 5a9baf9e7..0d567e0ed 100644 --- a/os/hal/ports/STM32/STM32F30x/hal_lld.h +++ b/os/hal/ports/STM32/STM32F30x/hal_lld.h @@ -1017,8 +1017,15 @@ */
#if STM32_TIM1SW == STM32_TIM1SW_PCLK2
#define STM32_TIM1CLK STM32_PCLK2
+
#elif STM32_TIM1SW == STM32_TIM1SW_PLLX2
+#if (STM32_SW != STM32_SW_PLL) || \
+ (STM32_HPRE != STM32_HPRE_DIV1) || \
+ (STM32_PPRE2 != STM32_PPRE2_DIV2)
+#error "double clock mode cannot be activated for TIM1 under the current settings"
+#endif
#define STM32_TIM1CLK (STM32_PLLCLKOUT * 2)
+
#else
#error "invalid source selected for TIM1 clock"
#endif
@@ -1028,8 +1035,15 @@ */
#if STM32_TIM8SW == STM32_TIM8SW_PCLK2
#define STM32_TIM8CLK STM32_PCLK2
+
#elif STM32_TIM8SW == STM32_TIM8SW_PLLX2
+#if (STM32_SW != STM32_SW_PLL) || \
+ (STM32_HPRE != STM32_HPRE_DIV1) || \
+ (STM32_PPRE2 != STM32_PPRE2_DIV2)
+#error "double clock mode cannot be activated for TIM8 under the current settings"
+#endif
#define STM32_TIM8CLK (STM32_PLLCLKOUT * 2)
+
#else
#error "invalid source selected for TIM8 clock"
#endif
|