new project

Src/gd32e23x_it.c

@@ -37,6 +37,9 @@ OF SUCH DAMAGE.
 #include "uart.h"
 #include "uart_ring_buffer.h"
 #include "led.h"
+#include "ultrasonic_analog.h"
+
+extern uint16_t g_capture_value;
 
 /*!
     \brief      this function handles NMI exception
@@ -101,9 +104,78 @@ void SysTick_Handler(void) {
     delay_decrement();
 }
 
+// /**
+//   * @brief  This function handles TIMER15 interrupt request.
+//   * @param[in]  none
+//   * @param[out] none
+//   * @retval None
+//   */
+// void TIMER15_IRQHandler(void) {
+//     if (timer_interrupt_flag_get(US_TX_DELAY_TIMER, TIMER_INT_FLAG_UP) == SET)
+//     {
+//         timer_interrupt_flag_clear(US_TX_DELAY_TIMER, TIMER_INT_FLAG_UP);
+//         exti_interrupt_enable(US_RX_GPIO_EXTI); // turn on hardware external input interrupt
+//         timer_counter_value_config(US_ECHO_TIMER, 0);
+//         timer_enable(US_ECHO_TIMER);   // turn on timer to calculate the first ultrasonic echo time
+//         timer_disable(US_TX_DELAY_TIMER);
+//     }
+// }
+
+void TIMER15_IRQHandler(void) {
+    if (timer_interrupt_flag_get(TIMER15, TIMER_INT_FLAG_CH1)) {
+        timer_interrupt_flag_clear(TIMER15, TIMER_INT_FLAG_CH1);
+        // g_ultrasonic_measure_done = true; // TODO 测距命令发送回报标识位，最终不应在这里
+        gpio_bit_set(GPIOA, GPIO_PIN_0); // TODO waiting for delete
+    }
+
+    if (timer_interrupt_flag_get(TIMER15, TIMER_INT_FLAG_UP)) {
+        timer_interrupt_flag_clear(TIMER15, TIMER_INT_FLAG_UP);
+        timer_disable(TIMER15);
+    }
+    
+}
+
+
+
+/**
+  * @brief  This function handles external lines 0 to 1 interrupt request
+  * @param[in]  none
+  * @param[out] none
+  * @retval None
+  */
+void EXTI0_1_IRQHandler(void) {
+    if (exti_interrupt_flag_get(US_RX_GPIO_EXTI) == SET)
+    {
+        exti_interrupt_flag_clear(US_RX_GPIO_EXTI);
+        g_capture_value = timer_channel_capture_value_register_read(US_ECHO_TIMER, US_ECHO_CH);
+        
+        timer_disable(US_ECHO_TIMER);
+        exti_interrupt_disable(US_RX_GPIO_EXTI);
+    }
+}
+
+
+/* PWM周期计数器 - 使用ULTRASONIC_TX_CYCLES宏 */
+volatile uint8_t pwm_cycle_count = 0;
+
+void TIMER13_IRQHandler(void)
+{
+    if(SET == timer_interrupt_flag_get(TIMER13, TIMER_INT_FLAG_UP)) {
+        timer_interrupt_flag_clear(TIMER13, TIMER_INT_FLAG_UP);
+        pwm_cycle_count++;
+
+        if(pwm_cycle_count >= (ULTRASONIC_TX_CYCLES)) {
+            timer_disable(TIMER13);
+            pwm_cycle_count = 0;
+            g_ultrasonic_measure_done = true; // TODO 测距命令发送回报标识位，最终不应在这里
+        }
+        
+    }
+}
+
 void USART0_IRQHandler(void) {
     if (RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_RBNE)) {
         uint8_t data = usart_data_receive(USART0);
         (void)uart_ring_buffer_put(data); // 缓冲满时丢弃，返回值可用于统计
     }
-}
+}