/*****************头文件*************************/
#include "fsl_common.h"
#include "fsl_pit.h"
#include "fsl_clock.h"
#include "fsl_gpio.h"
#include "uart_Interrupt.h"
#include "pit.h"


void Pit_MyInit()
{
    pit_config_t pitConfig;
    PIT_GetDefaultConfig(&pitConfig);
    PIT_Init(PIT, &pitConfig);    //初始化PIT
    PIT_SetTimerPeriod(PIT, DEMO_PIT_CHANNEL, USEC_TO_COUNT(50000U, PIT_SOURCE_CLOCK)); //设置通道0
    PIT_EnableInterrupts(PIT, DEMO_PIT_CHANNEL, kPIT_TimerInterruptEnable);   //使能定时器0中断
    EnableIRQ(PIT0_IRQn);  //使能PIT中断
    PIT_StartTimer(PIT, DEMO_PIT_CHANNEL);    //开启通道0定时
}