Added clockConfig

This commit is contained in:
EyeXion 2020-10-19 11:43:02 +02:00
parent 05d514e8d6
commit d5c8285944

View file

@ -1,6 +1,9 @@
#include "Voile.h" #include "Voile.h"
#include "stm32f1xx_ll_gpio.h" #include "stm32f1xx_ll_gpio.h"
#include "stm32f1xx_ll_rcc.h" // utile dans la fonction SystemClock_Config
#include "stm32f1xx_ll_utils.h" // utile dans la fonction SystemClock_Config
#include "stm32f1xx_ll_system.h" // utile dans la fonction SystemClock_Config
#include "stm32f1xx_ll_tim.h" #include "stm32f1xx_ll_tim.h"
#include "stdlib.h" //Remplacer par maths.h quand on va tout faire marcher. #include "stdlib.h" //Remplacer par maths.h quand on va tout faire marcher.
@ -48,6 +51,62 @@ void TendreVoile(int theta)
} }
/**
* @brief System Clock Configuration
* The system Clock is configured as follow :
* System Clock source = PLL (HSE)
* SYSCLK(Hz) = 72000000
* HCLK(Hz) = 72000000
* AHB Prescaler = 1
* APB1 Prescaler = 2
* APB2 Prescaler = 1
* HSE Frequency(Hz) = 8000000
* PLLMUL = 9
* Flash Latency(WS) = 2
* @param None
* @retval None
*/
void SystemClock_Config(void)
{
/* Set FLASH latency */
LL_FLASH_SetLatency(LL_FLASH_LATENCY_2);
/* Enable HSE oscillator */
// ********* Commenter la ligne ci-dessous pour MCBSTM32 *****************
// ********* Conserver la ligne si Nucléo*********************************
LL_RCC_HSE_EnableBypass();
LL_RCC_HSE_Enable();
while(LL_RCC_HSE_IsReady() != 1)
{
};
/* Main PLL configuration and activation */
LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE_DIV_1, LL_RCC_PLL_MUL_9);
LL_RCC_PLL_Enable();
while(LL_RCC_PLL_IsReady() != 1)
{
};
/* Sysclk activation on the main PLL */
LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
{
};
/* Set APB1 & APB2 prescaler*/
LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_2);
LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
/* Set systick to 1ms in using frequency set to 72MHz */
LL_Init1msTick(72000000); // utile lorsqu'on utilise la fonction LL_mDelay
/* Update CMSIS variable (which can be updated also through SystemCoreClockUpdate function) */
LL_SetSystemCoreClock(72000000);
}
int main(){ int main(){