GD32,正交编码器反转时,计数脉冲丢失，正转时计数正常，反转读计数没了值。
- int16_t Encoder_Get(void)
- {
- int16_t Temp;
- Temp = timer_counter_read(TIMER0);
- //timer_counter_value_config(TIMER0, 0x7FFF);
- return Temp;
- }
这个函数反转时读的值是0，下面是编码器初始化函数
- void timer0_config(void)
- {
- timer_parameter_struct baseConfig;
- timer_oc_parameter_struct occonfig;
- timer_ic_parameter_struct ICConfig;
- /* Enable TMR0 Periph Clock */
- rcu_periph_clock_enable(RCU_TIMER0);
- /* Config TMR0 */
- baseConfig.clockdivision = TIMER_CKDIV_DIV1;
- baseConfig.counterdirection = TIMER_COUNTER_UP;
- baseConfig.prescaler = 0;
- baseConfig.period = 4800;
- baseConfig.repetitioncounter = 0;
- timer_init(TIMER0, &baseConfig);
- timer_counter_value_config(TIMER0, 0);
-
- timer_slave_mode_select(TIMER0, TIMER_QUAD_DECODER_MODE2);
- /* Encoder mode */
- timer_quadrature_decoder_mode_config(TIMER0, 3, TIMER_IC_POLARITY_RISING, TIMER_IC_POLARITY_RISING);
- //timer_flag_clear(TIMER0, TIMER_FLAG_UP);
- /* Enable TMR1,TMR3 Interrupt */
- //timer_interrupt_enable(TIMER2, TIMER_INT_CH1);
- timer_interrupt_enable(TIMER0, TIMER_INT_UP);
- //timer_interrupt_enable(TIMER0, TIMER_INT_CH1);
- nvic_priority_group_set(NVIC_PRIGROUP_PRE1_SUB3);
- //nvic_irq_enable(TIMER2_IRQn, 1,1);
- nvic_irq_enable(TIMER0_UP_IRQn, 1,1);
- /* Enable TMR1,TMR3 */
- //timer_enable(TIMER2);
- timer_enable(TIMER0);
- }
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