bstanwell/ch32v20x-examples
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update 1.8

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This commit is contained in:
qiyongshuang
2023-09-06 10:08:11 +08:00
parent b79c6ac80d
commit 64be955461
760 changed files with 42517 additions and 30957 deletions
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EVT/EXAM/IAP/USB_UART/CH32V20x_IAP/User/main.c
+26 -15
View File
@@ -4,24 +4,24 @@
* Version : V1.0.0
* Date : 2021/06/06
* Description : Main program body.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
/*
*@Note
IAP upgrade routine:
Support serial port and USB for FLASH burning
1. Use the IAP download tool to realize the download PA0 floating (default pull-up input)
2. After downloading the APP, connect PA0 to ground (low level input), and press
the reset button to run the APP program.
3. 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 upgrade routine:
*Support serial port and USB for FLASH burning
*
*1. Use the IAP download tool to realize the download PA0 floating (default pull-up input)
*2. After downloading the APP, connect PA0 to ground (low level input), and press
*the reset button to run the APP program.
*3. 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
*
*/
#include "debug.h"
@@ -49,6 +49,15 @@ void IAP_2_APP(void) {
USBOTG_FS->BASE_CTRL |= (1 << 1) | (1 << 2);
Delay_Ms(50);
printf("jump APP\r\n");
GPIO_DeInit(GPIOA);
GPIO_DeInit(GPIOB);
USART_DeInit(USART3);
NVIC_DisableIRQ( USBHD_IRQn );
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOB, DISABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, DISABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3,DISABLE);
RCC_AHBPeriphClockCmd( RCC_AHBPeriph_OTG_FS, DISABLE );
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USB, DISABLE);
Delay_Ms(10);
NVIC_EnableIRQ(Software_IRQn);
NVIC_SetPendingIRQ(Software_IRQn);
@@ -61,9 +70,11 @@ void IAP_2_APP(void) {
* @return none
*/
int main(void) {
SystemCoreClockUpdate();
Delay_Init();
USART_Printf_Init(115200);
printf("SystemClk:%d\r\n", SystemCoreClock);
printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() );
Set_USBConfig();
USB_Init();