V2.31

EVT/EXAM/IAP/USB_UART/CH32V20x_APP/User/main.c

@@ -1,8 +1,8 @@
 /********************************** (C) COPYRIGHT *******************************
  * File Name          : main.c
  * Author             : WCH
- * Version            : V1.0.0
- * Date               : 2021/06/06
+ * Version            : V1.0.2
+ * Date               : 2025/10/27
  * Description        : Main program body.
  *********************************************************************************
  * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
@@ -11,18 +11,25 @@
  *******************************************************************************/
 
 /*
- *@Note
- *ADC uses DMA sampling routine:
- *ADC channel 1 (PA1), the rule group channel obtains ADC conversion data
- *for 1024 consecutive times through DMA.
- *
+ * APP routine: this routine support USB and UART mode,
+ * and you can choose the command method to jump to the IAP .
+ * Key  parameters: CalAddr - address in flash(same in IAP), note that this address needs to be unused.
+ *                  CheckNum - The value of 'CalAddr' that needs to be modified.
+ * Tips :the routine need IAP software version 1.50.
  */
 
 #include "debug.h"
+#include "ch32v20x_usbfs_device.h"
+#include "iap.h"
+#include "usb_istr.h"
+#include "usb_desc.h"
+#include "usb_lib.h"
+#include "hw_config.h"
+#include "usb_pwr.h"
 
 /* Global Variable */
 u16 TxBuf[1024];
-s16 Calibrattion_Val = 0;
+vs16 Calibrattion_Val = 0;
 
 /*********************************************************************
  * @fn      ADC_Function_Init
@@ -157,6 +164,43 @@ u16 Get_ConversionVal(s16 val)
     return (val + Calibrattion_Val);
 }
 
+/*********************************************************************
+ * @fn      APP_2_IAP
+ *
+ * @brief   APP_2_IAP program.
+ *
+ * @return  none
+ */
+void APP_2_IAP(void)
+{
+    NVIC_SystemReset();
+    while(1){
+    }
+}
+
+/*********************************************************************
+ * @fn      USART3_IT_CFG
+ *
+ * @brief   USART3 IT config program.
+ *
+ * @return  none
+ */
+void USART3_IT_CFG(void)
+{
+    NVIC_InitTypeDef  NVIC_InitStructure = {0};
+
+    RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
+    USART_ITConfig(USART3, USART_IT_RXNE, ENABLE);
+
+    NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn;
+    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
+    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
+    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
+    NVIC_Init(&NVIC_InitStructure);
+
+    USART_Cmd(USART3, ENABLE);
+}
+
 /*********************************************************************
  * @fn      main
  *
@@ -186,17 +230,47 @@ int main(void)
     Delay_Ms(50);
     ADC_SoftwareStartConvCmd(ADC1, DISABLE);
 
-    for(i = 0; i < 1024; i++){
+    for(i = 0; i < 64; i++){
         printf("%04d\r\n", Get_ConversionVal(TxBuf[i]));
         Delay_Ms(10);
     }
 
-    while(1);
+    //USB-USART ENABLE
+    Set_USBConfig();
+    USB_Init();
+    USB_Port_Set(DISABLE, DISABLE);
+    Delay_Ms(700);
+    USB_Port_Set(ENABLE, ENABLE);
+    USB_Interrupts_Config();
+
+    USBFS_Init();
+    USART3_CFG(460800);
+    USART3_IT_CFG();
+
+    while(1)
+    {
+        EP2_RecData_Deal();
+        if(*(vu32 *)CalAddr == CheckNum)
+        {
+             Delay_Ms(10);
+             APP_2_IAP();
+             while(1);
+        }
+    }
 }
 
+void USART3_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
+/*********************************************************************
+ * @fn      USART3_IRQHandler
+ *
+ * @brief   This function handles USART3 global interrupt request.
+ *
+ * @return  none
+ */
+void USART3_IRQHandler(void)
+{
+    if( USART_GetFlagStatus(USART3, USART_FLAG_RXNE) != RESET){
 
-
-
-
-
-
+        UART_Rx_Deal();
+    }
+}