stm32F定时器T3产生作为T4定时器的预分频器代码
时间: 2023-10-25 19:07:41 浏览: 76
以下是使用STM32F定时器T3产生作为T4定时器的预分频器的代码:
```c
#include "stm32f10x.h"
void TIM3_Configuration(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
TIM_TimeBaseStructure.TIM_Period = 0xFFFF;
TIM_TimeBaseStructure.TIM_Prescaler = 71;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
TIM_Cmd(TIM3, ENABLE);
}
void TIM4_Configuration(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
TIM_TimeBaseStructure.TIM_Period = 0xFFFF;
TIM_TimeBaseStructure.TIM_Prescaler = 0;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure);
TIM_SelectInputTrigger(TIM4, TIM_TS_ITR0);
TIM_SelectMasterSlaveMode(TIM4, TIM_MasterSlaveMode_Enable);
TIM_Cmd(TIM4, ENABLE);
}
int main(void)
{
TIM3_Configuration();
TIM4_Configuration();
while(1);
}
```
在这个代码中,我们使用了STM32F的定时器T3产生作为T4定时器的预分频器。在TIM3_Configuration函数中,我们初始化了T3定时器,并将其预分频为72,以便产生1MHz的时钟信号。在TIM4_Configuration函数中,我们初始化了T4定时器,并将其预分频为1,以便将T3的时钟信号直接传递给T4。最后,在主函数中,我们调用了这两个函数来初始化T3和T4定时器。
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