GD32F470 TimerBase

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Zhiniaocun| 高级技术员

楼主 | 2025-4-12 07:17 | 只看该作者回帖奖励

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TI, se, timer

//timer.c

#include "timer.h"

void timer_base_init(uint32_t x100ns)
{
  timer_parameter_struct timer_initpara;

  /* enable the peripherals clock */
  rcu_periph_clock_enable(USER_TIMER1_CLK); //120M

  /* deinit a TIMER */
  timer_deinit(USER_TIMER1);
  /* initialize TIMER init parameter struct */
  timer_struct_para_init(&timer_initpara);
  /* TIMER2 configuration */
  timer_initpara.prescaler       = 12 - 1;
  timer_initpara.alignedmode    = TIMER_COUNTER_EDGE;
  timer_initpara.counterdirection  = TIMER_COUNTER_UP;
  timer_initpara.period          = x100ns - 1;
  timer_initpara.clockdivision    = TIMER_CKDIV_DIV1;
  timer_init(USER_TIMER1, &timer_initpara);

  /* clear channel 0 interrupt bit */
  timer_interrupt_flag_clear(USER_TIMER1, TIMER_INT_FLAG_UP);
  /* enable the TIMER interrupt */
  timer_interrupt_enable(USER_TIMER1, TIMER_INT_UP);
  /* enable a TIMER */
  timer_enable(USER_TIMER1);

  nvic_irq_enable(USER_TIMER1_IRQ, 0, 0);
}

void USER_TIMER1_IRQHandler(void)
{
  if(SET == timer_interrupt_flag_get(USER_TIMER1, TIMER_INT_UP)) {
/* clear update interrupt bit */
timer_interrupt_flag_clear(USER_TIMER1, TIMER_INT_UP);
{
   tp1_tog();
}
  }
}

//timer.h

#ifndef __TIMER_H_
#define __TIMER_H_

#include "includes.h"

#define USER_TIMER1             TIMER1
#define USER_TIMER1_CLK          RCU_TIMER1
#define USER_TIMER1_IRQ          TIMER1_IRQn
#define USER_TIMER1_IRQHandler TIMER1_IRQHandler

#define T1US 10
#define T1MS (T1US*1000)
#define T10MS (T1MS*10)

void timer_base_init(uint32_t x100ns);

#endif

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                        版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。

原文链接：https://blog.csdn.net/lljss1980/article/details/143107425

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