bstanwell/ch32v20x-examples
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qiyongshuang
2026-01-07 10:43:29 +08:00
parent 6209b6e7f9
commit d161f84c90
551 changed files with 23169 additions and 1518 deletions
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EVT/EXAM/IAP/USB_UART/CH32V20x_IAP/User/main.c
+39 -17
View File
@@ -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.
@@ -11,16 +11,12 @@
*******************************************************************************/
/*
*@Note
*IAP upgrade routine:
*Support serial port and USB for FLASH burning
*
*1. The routine needs to install the CH372 driver.
*Note: FLASH operation keeps the frequency below 100Mhz, it is recommended that the main
*frequency of IAP be below 100Mhz
*
* IAP routine: this routine support USB and UART mode,
* and you can choose the command method or the IO method to jump to the APP .
* Key parameters: CalAddr - address in flash (same in APP), 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"
@@ -29,7 +25,12 @@
#include "usb_lib.h"
#include "hw_config.h"
#include "usb_pwr.h"
extern u8 End_Flag;
extern vu8 End_Flag;
#define UPGRADE_MODE_COMMAND 0
#define UPGRADE_MODE_IO 1
#define UPGRADE_MODE UPGRADE_MODE_COMMAND
/*********************************************************************
* @fn IAP_2_APP
*
@@ -59,6 +60,7 @@ void IAP_2_APP(void) {
NVIC_EnableIRQ(Software_IRQn);
NVIC_SetPendingIRQ(Software_IRQn);
}
/*********************************************************************
* @fn main
*
@@ -66,12 +68,31 @@ void IAP_2_APP(void) {
*
* @return none
*/
int main(void) {
int main(void)
{
SystemCoreClockUpdate();
Delay_Init();
USART_Printf_Init(115200);
printf("SystemClk:%d\r\n", SystemCoreClock);
printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() );
printf("IAP\r\n");
#if UPGRADE_MODE == UPGRADE_MODE_COMMAND
if(*(vu32 *)FLASH_Base != 0xe339e339 )
{
if(*(vu32 *)CalAddr != CheckNum)
{
IAP_2_APP();
while(1);
}
}
#elif UPGRADE_MODE == UPGRADE_MODE_IO
if(PA0_Check() == 0)
{
IAP_2_APP();
while(1);
}
#endif
Set_USBConfig();
USB_Init();
@@ -81,18 +102,19 @@ int main(void) {
USB_Interrupts_Config();
USBFS_Init();
USART3_CFG(57600);
USART3_CFG(460800);
while(1)
{
EP2_RecData_Deal();
if( USART_GetFlagStatus(USART3, USART_FLAG_RXNE) != RESET) {
UART_Rx_Deal();
}
#if UPGRADE_MODE == UPGRADE_MODE_COMMAND
if (End_Flag)
{
Delay_Ms(10);
{
IAP_2_APP();
while(1);
}
}
#endif
}
}