generated from hulk/gd32e23x_template_cmake_vscode
159 lines
4.6 KiB
C
159 lines
4.6 KiB
C
/*!
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\file gd32e23x_it.c
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\brief interrupt service routines
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\version 2025-02-10, V2.4.0, demo for GD32E23x
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*/
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/*
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Copyright (c) 2025, GigaDevice Semiconductor Inc.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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OF SUCH DAMAGE.
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*/
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#include "gd32e23x_it.h"
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#include "systick.h"
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#include "uart.h"
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#include "uart_ring_buffer.h"
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#include "led.h"
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#include "ultrasonic_analog.h"
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/*!
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\brief this function handles NMI exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void NMI_Handler(void)
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{
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/* if NMI exception occurs, go to infinite loop */
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while(1) {
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}
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}
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/*!
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\brief this function handles HardFault exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void HardFault_Handler(void)
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{
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/* if Hard Fault exception occurs, go to infinite loop */
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while(1) {
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}
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}
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/*!
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\brief this function handles SVC exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void SVC_Handler(void)
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{
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/* if SVC exception occurs, go to infinite loop */
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while(1) {
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}
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}
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/*!
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\brief this function handles PendSV exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void PendSV_Handler(void)
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{
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/* if PendSV exception occurs, go to infinite loop */
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while(1) {
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}
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}
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/*!
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\brief this function handles SysTick exception
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\param[in] none
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\param[out] none
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\retval none
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*/
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void SysTick_Handler(void) {
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led_heart_beat(); // LED心跳指示灯
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delay_decrement();
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}
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void TIMER16_IRQHandler(void)
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{
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// CH0比较中断 (ULTRASONIC_TX_RINGDOWN_RELOAD)
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if(timer_interrupt_flag_get(TIMER16, TIMER_INT_FLAG_CH0) != RESET) {
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timer_interrupt_flag_clear(TIMER16, TIMER_INT_FLAG_CH0);
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exti_interrupt_enable(US_RX_GPIO_EXTI);
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}
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// UP更新中断 (ULTRASONIC_MAX_TOF_RELOAD)
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if(timer_interrupt_flag_get(TIMER16, TIMER_INT_FLAG_UP) != RESET) {
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timer_interrupt_flag_clear(TIMER16, TIMER_INT_FLAG_UP);
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timer_disable(US_ECHO_TIMER);
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}
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}
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/**
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* @brief This function handles external lines 0 to 1 interrupt request
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* @param[in] none
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* @param[out] none
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* @retval None
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*/
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void EXTI0_1_IRQHandler(void) {
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if (exti_interrupt_flag_get(US_RX_GPIO_EXTI) == SET)
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{
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exti_interrupt_flag_clear(US_RX_GPIO_EXTI);
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timer_disable(US_ECHO_TIMER);
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g_ultrasonic_measure_done = true; // 超声转换完成,置位flag后有命令处理部分回包
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exti_interrupt_disable(US_RX_GPIO_EXTI);
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}
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}
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/* PWM周期计数器 - 使用ULTRASONIC_TX_CYCLES宏 */
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volatile uint8_t pwm_cycle_count = 0;
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void TIMER13_IRQHandler(void)
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{
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if(SET == timer_interrupt_flag_get(TIMER13, TIMER_INT_FLAG_UP)) {
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timer_interrupt_flag_clear(TIMER13, TIMER_INT_FLAG_UP);
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pwm_cycle_count++;
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if(pwm_cycle_count >= (ULTRASONIC_TX_CYCLES)) {
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timer_disable(TIMER13);
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pwm_cycle_count = 0;
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}
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}
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}
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void USART0_IRQHandler(void) {
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if (RESET != usart_interrupt_flag_get(USART0, USART_INT_FLAG_RBNE)) {
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uint8_t data = usart_data_receive(USART0);
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(void)uart_ring_buffer_put(data); // 缓冲满时丢弃，返回值可用于统计
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}
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}
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