gd单片机定时器不工作

只看该作者 · 2021-9-28 16:51

void TIM1_Init(void)
{
   rcu_periph_clock_enable(RCU_TIMER1);
timer_parameter_struct timer_initpara;

timer_deinit(TIMER1);

/* TIMER0 configuration */
timer_initpara.prescaler       = 11;//count clk = 120M/12=10Mhz //配置好后，无法工作
timer_initpara.alignedmode    = TIMER_COUNTER_EDGE;
timer_initpara.counterdirection  = TIMER_COUNTER_UP;

// timer_initpara.period          = 29999;//300毫秒进一次中断
timer_initpara.period          =  4999;//100毫秒进一次中断
timer_initpara.clockdivision    = TIMER_CKDIV_DIV1;
timer_initpara.repetitioncounter = 0;
timer_init(TIMER1,&timer_initpara);
}
==================================================
上面代码配置定时器1，计数时钟是10M，为什么没法工作？有哪位大神知道吗？

3万 · 2021-9-28 17:52

GD32F30x系列MCU用户手册_Rev2.5.pdf (13.24 MB)

只看该作者 · 2021-9-29 06:29

这是我在使用的
void timer1_config(unsigned int prr,unsigned int cou)  // clock  108MHz
{
   // clock  108MHz
timer_parameter_struct timer_initpara;
rcu_periph_clock_enable(RCU_TIMER1);
timer_deinit(TIMER1);
/* TIMER1 configuration */
timer_initpara.prescaler       = prr;
timer_initpara.alignedmode    = TIMER_COUNTER_EDGE;
timer_initpara.counterdirection  = TIMER_COUNTER_UP;
timer_initpara.period          = cou;
timer_initpara.clockdivision    = TIMER_CKDIV_DIV1;
timer_initpara.repetitioncounter = 1;
timer_init(TIMER1,&timer_initpara);
NVIC_SetPriority(TIMER1_IRQn, 1U);
/* auto-reload preload disable */
timer_auto_reload_shadow_enable(TIMER1);
timer_enable(TIMER1);
nvic_irq_enable(TIMER1_IRQn, 1, 0);
timer_interrupt_enable(TIMER1, TIMER_INT_UP);
}