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Updated example program to be less useless

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Logan G 2023-11-25 23:48:12 -07:00
parent 58b4d4951d
commit d306a7ea53
Signed by: logan
GPG key ID: E328528C921E7A7A
1 changed files with 26 additions and 56 deletions
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80
User/main.c
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@ -7,19 +7,6 @@
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd. * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* SPDX-License-Identifier: Apache-2.0 * SPDX-License-Identifier: Apache-2.0
*******************************************************************************/ *******************************************************************************/
/*
*@Note
轮询收发模式例程：
Master：USART1_Tx(PD5)、USART1_Rx(PD6)。
本例程演示 USART1 收到CH341发送的数据取反发出（波特率 115200）。
注：
硬件连线：PD5 —— Rx
PD6 —— Tx
*/
#include "debug.h" #include "debug.h"
@ -27,40 +14,23 @@
/* Global Variable */ /* Global Variable */
vu8 val;
/********************************************************************* /*********************************************************************
* @fn USARTx_CFG * @fn GPIO_Toggle_INIT
* *
* @brief Initializes the USART2 & USART3 peripheral. * @brief Initializes GPIOD.4
* *
* @return none * @return none
*/ */
void USARTx_CFG(void) void GPIO_LED_Init(void) {
{
GPIO_InitTypeDef GPIO_InitStructure = {0}; GPIO_InitTypeDef GPIO_InitStructure = {0};
USART_InitTypeDef USART_InitStructure = {0};
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD | RCC_APB2Periph_USART1, ENABLE); RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
/* USART1 TX-->D.5 RX-->D.6 */ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5; GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOD, &GPIO_InitStructure); GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOD, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
USART_Init(USART1, &USART_InitStructure);
USART_Cmd(USART1, ENABLE);
} }
/********************************************************************* /*********************************************************************
@ -70,27 +40,27 @@ void USARTx_CFG(void)
* *
* @return none * @return none
*/ */
int main(void) int main(void) {
{
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
SystemCoreClockUpdate();
Delay_Init(); Delay_Init();
#if (SDI_PRINT == SDI_PR_OPEN)
SDI_Printf_Enable();
#else
USART_Printf_Init(115200); USART_Printf_Init(115200);
printf("SystemClk:%d\r\n",SystemCoreClock); #endif
printf("SystemClk: %ld\r\n", SystemCoreClock);
printf("DeviceID: %08x\r\n", DBGMCU_GetDEVID());
printf("ChipID: %08x\r\n", DBGMCU_GetCHIPID());
USARTx_CFG(); GPIO_LED_Init();
while(1) while(1) {
{ Delay_Ms(1000);
printf("On\r\n");
while(USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET) GPIO_WriteBit(GPIOD, GPIO_Pin_4, Bit_SET);
{ Delay_Ms(1000);
/* waiting for receiving finish */ printf("Off\r\n");
} GPIO_WriteBit(GPIOD, GPIO_Pin_4, Bit_RESET);
val = (USART_ReceiveData(USART1));
USART_SendData(USART1, ~val);
while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET)
{
/* waiting for sending finish */
}
} }
} }