hulk/xlsw_3dp_ultrasonic_300K
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into exti IRQ OK

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This commit is contained in:
yelvlab 2024-09-24 19:55:44 +08:00
parent 8abd25d7fa
commit d51a97df32
4 changed files with 80 additions and 2 deletions
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4
inc/ultrasonic_driver.h
View File

@ -35,4 +35,8 @@ void ultrasonic_config(void);
void ultrasonic_peripheral_config(void);
void ultrasonic_pwm_out_cycles(uint8_t cycles);
void timer15_config(void);
void recevice_exti_config(void);
#endif //ULTRASONIC_DRIVER_H

26
src/gd32e23x_it.c
View File

@ -115,4 +115,30 @@ void TIMER13_IRQHandler(void) {
}
led_status = !led_status;
}
}
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);
// timer_enable(TIMER14);
gpio_bit_toggle(GPIOA, GPIO_PIN_7);
timer_disable(TIMER15);
}
}
void EXTI0_1_IRQHandler(void) {
if (exti_interrupt_flag_get(EXTI_0) == SET) {
exti_interrupt_flag_clear(EXTI_0);
gpio_bit_toggle(GPIOA, GPIO_PIN_5);
timer_event_software_generate(TIMER14, TIMER_EVENT_SRC_CH0G);
exti_interrupt_disable(EXTI_0);
}
}

3
src/main.c
View File

@ -26,11 +26,12 @@ int main(void)
systick_config();
/* configure ultrasonic board hardware */
ultrasonic_peripheral_config();
timer15_config();
/* ---------- debug start ---------- */
recevice_exti_config();

49
src/ultrasonic_driver.c
View File

@ -30,7 +30,7 @@ void led_config(void)
timer_auto_reload_shadow_enable(LED_TIMER);
timer_interrupt_enable(LED_TIMER, TIMER_INT_UP);
nvic_irq_enable(LED_IRQ, 0);
nvic_irq_enable(LED_IRQ, 3);
timer_enable(LED_TIMER);
}
@ -107,6 +107,8 @@ void ultrasonic_pwm_out_cycles(uint8_t cycles) {
timer_channel_output_mode_config(US_TRAN_TIMER, US_TRAN_CH, TIMER_OC_MODE_PWM1);
timer_enable(US_TRAN_TIMER);
timer_enable(TIMER15);
while (current_cycle < cycles)
{
while (!timer_interrupt_flag_get(US_TRAN_TIMER, TIMER_INT_FLAG_UP));
@ -120,3 +122,48 @@ void ultrasonic_pwm_out_cycles(uint8_t cycles) {
// gpio_bit_reset(GPIOB, GPIO_PIN_1);
// }
}
void timer15_config(void) {
rcu_periph_clock_enable(RCU_GPIOA);
gpio_mode_set(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO_PIN_7);
gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_7);
gpio_bit_write(GPIOA, GPIO_PIN_7, SET);
rcu_periph_clock_enable(RCU_TIMER15);
timer_deinit(TIMER15);
timer_parameter_struct timer_initpara;
timer_struct_para_init(&timer_initpara);
timer_initpara.prescaler =71;
timer_initpara.alignedmode =TIMER_COUNTER_EDGE;
timer_initpara.counterdirection =TIMER_COUNTER_UP;
timer_initpara.period =230 - 1;
timer_initpara.clockdivision =TIMER_CKDIV_DIV1;
timer_initpara.repetitioncounter =0;
timer_init(TIMER15, &timer_initpara);
timer_auto_reload_shadow_enable(TIMER15); //使能自动影子重载
timer_interrupt_enable(TIMER15, TIMER_INT_UP); // 使能自动重载中断
nvic_irq_enable(TIMER15_IRQn, 2U);
}
void recevice_exti_config(void) {
rcu_periph_clock_enable(RCU_GPIOA);
rcu_periph_clock_enable(RCU_CFGCMP);
gpio_mode_set(GPIOA, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, GPIO_PIN_5);
gpio_output_options_set(GPIOA, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_5);
gpio_bit_write(GPIOA, GPIO_PIN_5, SET);
exti_deinit();
gpio_mode_set(GPIOA, GPIO_MODE_INPUT, GPIO_PUPD_NONE, GPIO_PIN_0);
nvic_irq_enable(EXTI0_1_IRQn, 1U);
syscfg_exti_line_config(EXTI_SOURCE_GPIOA, EXTI_SOURCE_PIN0);
exti_init(EXTI_0, EXTI_INTERRUPT, EXTI_TRIG_FALLING);
exti_flag_clear(EXTI_0);
exti_interrupt_enable(EXTI_0);
}