Initial commit

2025-08-19 22:53:06 +08:00
commit 1247429882
101 changed files with 54027 additions and 0 deletions
--- a/Src/gd32e23x_it.c
+++ b/Src/gd32e23x_it.c
@@ -0,0 +1,109 @@
+/*!
+    \file    gd32e23x_it.c
+    \brief   interrupt service routines
+    
+    \version 2025-02-10, V2.4.0, demo for GD32E23x
+*/
+
+/*
+    Copyright (c) 2025, GigaDevice Semiconductor Inc.
+
+    Redistribution and use in source and binary forms, with or without modification, 
+are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice, this 
+       list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright notice, 
+       this list of conditions and the following disclaimer in the documentation 
+       and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holder nor the names of its contributors 
+       may be used to endorse or promote products derived from this software without 
+       specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+OF SUCH DAMAGE.
+*/
+
+#include "gd32e23x_it.h"
+#include "systick.h"
+#include "uart.h"
+#include "uart_ring_buffer.h"
+#include "led.h"
+
+/*!
+    \brief      this function handles NMI exception
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void NMI_Handler(void)
+{
+    /* if NMI exception occurs, go to infinite loop */
+    while(1) {
+    }
+}
+
+/*!
+    \brief      this function handles HardFault exception
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void HardFault_Handler(void)
+{
+    /* if Hard Fault exception occurs, go to infinite loop */
+    while(1) {
+    }
+}
+
+/*!
+    \brief      this function handles SVC exception
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void SVC_Handler(void)
+{
+    /* if SVC exception occurs, go to infinite loop */
+    while(1) {
+    }
+}
+
+/*!
+    \brief      this function handles PendSV exception
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void PendSV_Handler(void)
+{
+    /* if PendSV exception occurs, go to infinite loop */
+    while(1) {
+    }
+}
+
+/*!
+    \brief      this function handles SysTick exception
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void SysTick_Handler(void) {
+    led_heart_beat();  // LED心跳指示灯
+    delay_decrement();
+}
+
+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
+    }
+}