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Wrapping the receive configuration functions together

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This commit is contained in:
yelvlab 2024-09-25 18:47:40 +08:00
parent 2c96ee7848
commit c7902a1722
4 changed files with 11 additions and 16 deletions
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2
inc/ultrasonic_driver.h
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@ -69,7 +69,7 @@ void ultrasonic_pwm_out_cycles(const uint8_t cycles);
void ultrasonic_transmit_delay(const uint16_t micro_second);
void recevice_exti_config(void);
void ultrasonic_echo_timer_config(void);
void ultrasonic_recevice_config(void);
uint16_t calculate_distance(uint32_t us_value);
#endif //ULTRASONIC_DRIVER_H

8
src/gd32e23x_it.c
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@ -123,12 +123,9 @@ void TIMER15_IRQHandler(void) {
if (timer_interrupt_flag_get(TIMER15, TIMER_INT_FLAG_UP) == SET)
{
timer_interrupt_flag_clear(TIMER15, TIMER_INT_FLAG_UP);
exti_interrupt_enable(EXTI_0); // turn on hardware external input interrupt
timer_counter_value_config(TIMER16, 0);
timer_enable(TIMER16); // turn on timer to calculate the first ultrasonic echo time
timer_disable(TIMER15);
}
}
@ -137,13 +134,8 @@ void EXTI0_1_IRQHandler(void) {
if (exti_interrupt_flag_get(EXTI_0) == SET)
{
exti_interrupt_flag_clear(EXTI_0);
capture_value = timer_channel_capture_value_register_read(TIMER16, TIMER_CH_0);
// printf("aaa\n");
timer_disable(TIMER16);
exti_interrupt_disable(EXTI_0);
}
}

5
src/main.c
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@ -27,10 +27,7 @@ int main(void)
systick_config();
/* configure ultrasonic board hardware */
ultrasonic_transmit_config();
ultrasonic_transmit_delay(TIME_CORRECTION_US);
recevice_exti_config();
ultrasonic_echo_timer_config();
ultrasonic_recevice_config();
/* ---------- debug start ---------- */

12
src/ultrasonic_driver.c
View File

@ -132,8 +132,8 @@ void ultrasonic_transmit_delay(const uint16_t micro_second) {
timer_initpara.repetitioncounter =0;
timer_init(US_TRAN_DELAY_TIMER, &timer_initpara);
timer_auto_reload_shadow_enable(US_TRAN_DELAY_TIMER); //使能自动影子重载
timer_interrupt_enable(US_TRAN_DELAY_TIMER, TIMER_INT_UP); // 使能自动重载中断
timer_auto_reload_shadow_enable(US_TRAN_DELAY_TIMER);
timer_interrupt_enable(US_TRAN_DELAY_TIMER, TIMER_INT_UP);
nvic_irq_enable(TIMER15_IRQn, 1U);
}
@ -170,10 +170,16 @@ void ultrasonic_echo_timer_config(void) {
timer_icinitpara.icpolarity = TIMER_IC_POLARITY_BOTH_EDGE;
timer_icinitpara.icselection = TIMER_IC_SELECTION_INDIRECTTI;
timer_icinitpara.icprescaler = TIMER_IC_PSC_DIV1;
timer_icinitpara.icfilter = 0x03; // 设置滤波器
timer_icinitpara.icfilter = 0x03;
timer_input_capture_config(US_ECHO_TIMER, US_ECHO_CH, &timer_icinitpara);
}
void ultrasonic_recevice_config(void) {
ultrasonic_transmit_delay(TIME_CORRECTION_US);
recevice_exti_config();
ultrasonic_echo_timer_config();
}
uint16_t calculate_distance(uint32_t us_value) {
uint16_t distace = (TIME_CORRECTION_US + us_value) * 17;
/*