GD32定时器编码器模式没有硬件计数吗？

qlkcbjyy · 2020-11-25 19:29

近日由于各种缺货涨价等等原因，准备换GD32F303，可是正交编码器模式总是调试不通，以前STM32F103很好配置的。没办法到处找资料、例程，最后找到厂家给的一个例程还是不行，好像例程是利用中断处理的，难道不应该是硬件自动计数？不知大家有没有遇到这种问题。
附上例程代码如下：
void timer2_init(void)
{
timer_parameter_struct timer_initpara;
timer_ic_parameter_struct timer_icinitpara;
timer_oc_parameter_struct timer_ocintpara;

rcu_periph_clock_enable(RCU_TIMER2);

timer_deinit(TIMER2);
timer_initpara.prescaler       = 0;
timer_initpara.alignedmode    = TIMER_COUNTER_EDGE;
timer_initpara.counterdirection  = TIMER_COUNTER_UP;
timer_initpara.period          = 3999;
timer_initpara.clockdivision    = 0;
timer_initpara.repetitioncounter = 0;
timer_init(TIMER2, &timer_initpara);

timer_icinitpara.icpolarity  = TIMER_IC_POLARITY_RISING;
timer_icinitpara.icselection = TIMER_IC_SELECTION_DIRECTTI;
timer_icinitpara.icprescaler = TIMER_IC_PSC_DIV1;
timer_icinitpara.icfilter = 0x5;
timer_input_capture_config(TIMER2, TIMER_CH_0, &timer_icinitpara);

timer_icinitpara.icfilter = 0x5;
timer_input_capture_config(TIMER2, TIMER_CH_2, &timer_icinitpara);

timer_quadrature_decoder_mode_config(TIMER2,TIMER_ENCODER_MODE2,TIMER_IC_POLARITY_RISING,TIMER_IC_POLARITY_RISING);

timer_interrupt_flag_clear(TIMER2, TIMER_INT_FLAG_CH0);
timer_interrupt_flag_clear(TIMER2, TIMER_INT_FLAG_CH2);

timer_interrupt_enable(TIMER2, TIMER_INT_CH0 |TIMER_INT_CH2);

timer_enable(TIMER2);
}
int main(void)
{
timer2_init();
while(1);
}
void TIMER2_IRQHandler(void)
{
if(timer_interrupt_flag_get(TIMER2, TIMER_INT_FLAG_CH0)){
   timer_interrupt_flag_clear(TIMER2, TIMER_INT_FLAG_CH0);
//处理正交编码信号
   }
if(timer_interrupt_flag_get(TIMER2, TIMER_INT_FLAG_CH2)){
   timer_interrupt_flag_clear(TIMER2, TIMER_INT_FLAG_CH2);
//处理过零点信号
}

}

hadio · 2020-11-29 12:13

楼主解决了吗？我也是遇到同样问题，原来STM32挺容易就配置好了，我用GD32F330, 整了一周了都没搞定

发呆二极管 · 2020-11-29 17:50

记得很久以前调过编码器，就是寄存器不同而已……对照着TIMER的固件库看看就行了

sonicll · 2020-11-30 08:54

要不要用中断，由你自己的应用需求来定，只要配置了编码器模式，计数值就是硬件计数的，和STM32是一样的

93162555 · 2021-1-8 19:48

      /* TIM3 clock enable */
rcu_periph_clock_enable(RCU_TIMER3);

/**TIM3 GPIO Configuration
PD12    ------> TIM3_CH1
PD13    ------> TIM3_CH2
*/
gpio_mode_set(GPIOD, GPIO_MODE_AF, GPIO_PUPD_NONE, GPIO_PIN_12|GPIO_PIN_13);
gpio_output_options_set(GPIOD, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_12|GPIO_PIN_13);

gpio_af_set(GPIOD, GPIO_AF_2, GPIO_PIN_12|GPIO_PIN_13);

timer_deinit(TIMER3);

               timer_initpara.period = 2000;
timer_initpara.prescaler = 0;
timer_initpara.alignedmode = TIMER_COUNTER_EDGE;
timer_initpara.counterdirection  = TIMER_COUNTER_UP;
timer_initpara.clockdivision = TIMER_CKDIV_DIV1;
timer_initpara.repetitioncounter = 0;

GD_TIM_Encoder_MspInit(TIMER3);
timer_init(TIMER3, &timer_initpara);

/* TIMER3 CH0 input capture configuration */
timer_icinitpara.icpolarity  = TIMER_IC_POLARITY_RISING;
timer_icinitpara.icselection = TIMER_IC_SELECTION_DIRECTTI;
timer_icinitpara.icprescaler = TIMER_IC_PSC_DIV1;
timer_icinitpara.icfilter = 0x05;
timer_input_capture_config(TIMER3,TIMER_CH_0,&timer_icinitpara);
timer_input_capture_config(TIMER3,TIMER_CH_1,&timer_icinitpara);

timer_quadrature_decoder_mode_config(TIMER3,TIMER_ENCODER_MODE1,TIMER_IC_POLARITY_RISING,TIMER_IC_POLARITY_RISING);

timer_interrupt_flag_clear(TIMER3, TIMER_INT_FLAG_CH0);
timer_interrupt_flag_clear(TIMER3, TIMER_INT_FLAG_CH1);
timer_interrupt_enable(TIMER3, TIMER_INT_UP);
timer_interrupt_enable(TIMER3, TIMER_INT_CH0 |TIMER_INT_CH1);

/* auto-reload preload enable */
// timer_auto_reload_shadow_enable(TIMER3);
timer_enable(TIMER3);

93162555 · 2021-1-8 19:49

亲测有效，不用中断，然后用timer_counter_read(TIMER3)读取值即可

Silenus · 2021-1-21 16:04

93162555 发表于 2021-1-8 19:49
亲测有效，不用中断，然后用timer_counter_read(TIMER3)读取值即可

请问，
可以提供完整代码？

Silenus · 2021-1-21 16:04

原厂不提供编码器的代码吧

93162555 · 2021-1-22 10:42

Silenus 发表于 2021-1-21 16:04
请问，
可以提供完整代码？

编码器可以参考https://blog.csdn.net/weixin_42831633/article/details/94641573，你把里面的读取替换成GD的就行，配置代码就是这样的

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