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Merge pull request #1608 from uestczyh222/bypass 

[BSP][STM32F4xx-HAL]support HSE Bypass
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ZYH 2018-07-06 10:50:24 +08:00 committed by GitHub
parent e6a34ead5d 8c32f817a3
commit a0cb70575a
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2 changed files with 8 additions and 0 deletions
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4
bsp/stm32f4xx-HAL/Kconfig
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@ -286,6 +286,10 @@ endchoice
config RT_USING_HSI
bool "Using HSI as clock source"
default n
config BSP_HSE_BY_PASS
bool "HES Bypass"
depends on !RT_USING_HSI
default n
config RT_HSE_VALUE
int "HSE Value"
default 8000000

4
bsp/stm32f4xx-HAL/drivers/board.c
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@ -50,7 +50,11 @@ static void SystemClock_Config(void)
RCC_OscInitStruct.OscillatorType |= RCC_OSCILLATORTYPE_LSI;
RCC_OscInitStruct.LSIState = RCC_LSI_ON;
#endif
#ifdef BSP_HSE_BY_PASS
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
#elif !defined(RT_USING_HSI)
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
#endif
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
if (hse_clk % 2 == 0)