104-SLM130(NB-IOT)C-SDK(OpenCPU)学习开发-定时器

说明

一共有6路定时器,0,1,2,3,4,5,可以做6路定时器或者6路PWM

直接看程序吧

1,定时器0每隔1ms进入中断

#include <stdio.h>
#include "app.h"
#include "bsp.h"
#include "slpman_ec616.h"
#include "bsp_custom.h"
#include "pad_ec616.h"
#include "gpio_ec616.h"

#include "timer_ec616.h"


#define timer_index 0 //定时器0

#define timer_clock_id  GPR_TIMER0FuncClk //定时器时钟
#define timer_clock_select GPR_TIMER0ClkSel_26M //选择时钟

#define timer_irqn PXIC_Timer0_IRQn //定时器中断

volatile uint32_t timer_cnt=0;
//定时器中断
void timer_interrupt()
{
    if (TIMER_GetInterruptFlags(timer_index) & TIMER_Match0InterruptFlag)//中断
    {
        timer_cnt ++;
        TIMER_ClearInterruptFlags(timer_index, TIMER_Match0InterruptFlag);//清除中断
    }
}

void timer0_init(void)
{
    TIMER_DriverInit();//初始化

    CLOCK_SetClockSrc(timer_clock_id, timer_clock_select);//设置时钟
    CLOCK_SetClockDiv(timer_clock_id, 1);//设置时钟分频
    //配置定时器
    timer_config_t timerConfig;
    TIMER_GetDefaultConfig(&timerConfig);

    timerConfig.reloadOption = TIMER_ReloadOnMatch0;//设置第一个中断时间
    timerConfig.match0 = 26000;//计数到26000(1ms),产生中断
    TIMER_Init(timer_index, &timerConfig);

    TIMER_InterruptConfig(timer_index, TIMER_Match0Select, TIMER_InterruptLevel);//第一个时间产生中断
    TIMER_InterruptConfig(timer_index, TIMER_Match1Select, TIMER_InterruptDisabled);
    TIMER_InterruptConfig(timer_index, TIMER_Match2Select, TIMER_InterruptDisabled);

    //设置中断
    XIC_SetVector(timer_irqn, timer_interrupt);//设置中断回调函数
    XIC_EnableIRQ(timer_irqn);//使能中断

    TIMER_Start(timer_index);//打开定时器
}

void main_entry(void)
{
    BSP_CommonInit();//官方底层初始化函数,默认写上就可以

    BSP_CustomInit();//串口1作为printf

    timer0_init();
    while (1)
    {
        if (timer_cnt>=1000)//1S
        {
            timer_cnt=0;
            printf("11223344\r\n");
        }        
    }
}