n32g45x 获取系统时钟频率和外设时钟频率

只看该作者 · 2023-9-28 12:38

n32g45x 获取系统时钟频率和外设时钟频率

//头文件main.h

#include "n32g45x.h"

typedef struct{

        uint16_t TIM1FREQ;

        uint16_t TIM2FREQ;

        uint16_t TIM3FREQ;

        uint16_t TIM4FREQ;

        uint16_t TIM5FREQ;

        uint16_t TIM6FREQ;

        uint16_t TIM7FREQ;

        uint16_t TIM8FREQ;

        

        //uint16_t ADC1FREQ;

        //uint16_t ADC2FREQ;

        //uint16_t ADC3FREQ;

        //uint16_t ADC4FREQ;

}Struct_Freq;        //外设时钟频率结构体

Struct_Freq PeripheralFreq;        //外设时钟频率

RCC_ClocksType ClocksFreq;        //主干时钟频率，_tim.h文件已定义结构类型

void Perip_GetClocksFreqValue(Struct_Freq * PeripheralFreq);        //定义函数

只看该作者 · 2023-9-28 13:26

复制

//源文件main.c

#include "main.h"

int main(void){

        RCC_GetClocksFreqValue(&ClocksFreq);

        Perip_GetClocksFreqValue(&PeripheralFreq);

}



void Perip_GetClocksFreqValue(Struct_Freq * PeripheralFreq){        //自定义函数实现

        PeripheralFreq->TIM1FREQ = TIM_GetPrescaler(TIM1);

        PeripheralFreq->TIM2FREQ = TIM_GetPrescaler(TIM2);

        PeripheralFreq->TIM3FREQ = TIM_GetPrescaler(TIM3);

        PeripheralFreq->TIM4FREQ = TIM_GetPrescaler(TIM4);

        PeripheralFreq->TIM5FREQ = TIM_GetPrescaler(TIM5);

        PeripheralFreq->TIM6FREQ = TIM_GetPrescaler(TIM6);

        PeripheralFreq->TIM7FREQ = TIM_GetPrescaler(TIM7);

        PeripheralFreq->TIM8FREQ = TIM_GetPrescaler(TIM8);

 }

只看该作者 · 2023-9-28 15:55

调试过程查看 ClocksFreq、PeripheralFreq 变量值即可，或可自行添加打印函数输出变量值。