SmartPDCode/control/voltmeter/TIMER/timer.c

#include "timer.h"
#include "gd32e230_timer.h"
#include "adc.h"




static void ConfigTimer14(unsigned short arr, unsigned short psc)
{
	 timer_parameter_struct timer_initpara;    //timer_initpara用于存放定时器的参数

  //使能RCU相关时钟
  rcu_periph_clock_enable(RCU_TIMER14);     //使能TIMER14的时钟

  timer_deinit(TIMER14);                    //设置TIMER14参数恢复默认值
  timer_struct_para_init(&timer_initpara);  //初始化timer_initpara

  //配置TIMER14
  timer_initpara.prescaler         = psc;               //设置预分频器值
  timer_initpara.counterdirection  = TIMER_COUNTER_UP;  //设置向上计数模式
  timer_initpara.period            = arr;               //设置自动重装载值
  timer_initpara.clockdivision     = TIMER_CKDIV_DIV1;  //设置时钟分割
  timer_init(TIMER14, &timer_initpara);                 //根据参数初始化定时器

  timer_interrupt_enable(TIMER14, TIMER_INT_UP);  //使能定时器的更新中断
  nvic_irq_enable(TIMER14_IRQn, 0);               //配置NVIC设置优先级
  timer_disable(TIMER14);                          //使能定时器
}

static void ConfigTimer15(unsigned short arr, unsigned short psc)
{
  timer_parameter_struct timer_initpara;    //timer_initpara用于存放定时器的参数

  //使能RCU相关时钟
  rcu_periph_clock_enable(RCU_TIMER15);     //使能TIMER15的时钟

  timer_deinit(TIMER15);                    //设置TIMER15参数恢复默认值
  timer_struct_para_init(&timer_initpara);  //初始化timer_initpara

  //配置TIMER15
  timer_initpara.prescaler         = psc;               //设置预分频器值
  timer_initpara.counterdirection  = TIMER_COUNTER_UP;  //设置向上计数模式
  timer_initpara.period            = arr;               //设置自动重装载值
  timer_initpara.clockdivision     = TIMER_CKDIV_DIV1;  //设置时钟分割
  timer_init(TIMER15, &timer_initpara);                 //根据参数初始化定时器

  timer_interrupt_enable(TIMER15, TIMER_INT_UP);  //使能定时器的更新中断
  nvic_irq_enable(TIMER15_IRQn, 3);               //配置NVIC设置优先级
  timer_enable(TIMER15);                          //使能定时器
}

void InitTimer(void)
{
	ConfigTimer14(39, 71);									//100ns
	ConfigTimer15(9999, 7199);							//1s
}

void ADC_TimerEnable(void)
{
	timer_enable(TIMER14); 
}


void ADC_TimerDisable(void)
{
	timer_disable(TIMER14);
}
extern uint8_t flash_led;
extern uint8_t read_flag;


extern uint16_t adc_original_value[4];


uint8_t flag_read_v_or_c = 0;


uint16_t data_s[500];
uint16_t data_i[500];

uint8_t read_complete = 0;


static int index = 0;

uint32_t a,b,c,d;
uint16_t count_v = 0;
uint16_t count_i = 0;


void TIMER14_IRQHandler(void)
{  
	
  if(timer_interrupt_flag_get(TIMER14, TIMER_INT_FLAG_UP) == SET) //判断定时器更新中断是否发生
  {
    timer_interrupt_flag_clear(TIMER14, TIMER_INT_FLAG_UP);       //清除定时器更新中断标志
  }
	a= adc_original_value[0];
	b= adc_original_value[1];
	c= adc_original_value[2];
	d= adc_original_value[3];
	if(a > b)
	{
		data_s[index] = a-b;
		count_v++;
	}else
	{
		data_s[index] = 0;
	}
	if(c > d)
	{
		data_i[index] = c-d;
		count_i++;
	}else
	{
		data_i[index] = 0;
	}
	index ++;
	if(index >= 500)
	{
		index = 0;
		read_complete = 1;
		ADC_TimerDisable();
	}
}

void TIMER15_IRQHandler(void)
{  
	
  if(timer_interrupt_flag_get(TIMER15, TIMER_INT_FLAG_UP) == SET) //判断定时器更新中断是否发生
  {
    timer_interrupt_flag_clear(TIMER15, TIMER_INT_FLAG_UP);       //清除定时器更新中断标志
  }
	flash_led = 1;
}