chv32v103C8T6的USART1配置接收中断后，测试没有进入接收中断...
本帖最后由 lilijin1995 于 2022-3-10 16:52 编辑chv32v103C8T6的USART1配置接收中断后，测试没有进入接收中断程序；
/********************************** (C) COPYRIGHT *******************************
* File Name : main.c
* Author : WCH
* Version : V1.0.0
* Date : 2020/04/30
* Description : Main program body.
*******************************************************************************/
/*
*@Note
USART中断例程：
Master：USART2_Tx(PA2)、USART2_Rx(PA3)。
Slave：USART3_Tx(PB10)、USART3_Rx(PB11)。
本例程演示 UART2 和 USART3 使用查询发送，中断接收。
注：
硬件连线：PA2 —— PB11
PA3 —— PB10
*/
#include "debug.h"
/* Global define */
#define TxSize1 (size(TxBuffer1))
#define TxSize2 (size(TxBuffer2))
#define size(a) (sizeof(a) / sizeof(*(a)))
/* Global typedef */
typedef enum { FAILED = 0, PASSED = !FAILED} TestStatus;
/* Global Variable */
u8 TxBuffer1[] = "*Buffer1 Send from USART2 to USART3 using Interrupt!"; /* Send by UART2 */
u8 TxBuffer2[] = "#Buffer2 Send from USART3 to USART2 using Interrupt!"; /* Send by UART3 */
u8 RxBuffer1={0}; /* USART2 Using */
u8 RxBuffer2={0}; /* USART3 Using*/
u8 TxCnt1 = 0, RxCnt1 = 0;
u8 TxCnt2 = 0, RxCnt2 = 0;
u8 Rxfinish1=0,Rxfinish2=0;
TestStatus TransferStatus1 = FAILED;
TestStatus TransferStatus2 = FAILED;
void USART1_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
void USART3_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
/*******************************************************************************
* Function Name: Buffercmp
* Description : Compares two buffers
* Input : Buf1,Buf2:buffers to be compared
* BufferLength: buffer's length
* Return : PASSED: Buf1 identical to Buf2
* FAILED: Buf1 differs from Buf2
*******************************************************************************/
TestStatus Buffercmp(uint8_t* Buf1, uint8_t* Buf2, uint16_t BufLength)
{
while(BufLength--)
{
if(*Buf1 != *Buf2)
{
return FAILED;
}
Buf1++;
Buf2++;
}
return PASSED;
}
/*******************************************************************************
* Function Name: USARTx_CFG
* Description : Initializes the USART2 & USART3 peripheral.
* Input : None
* Return : None
*******************************************************************************/
void USARTx_CFG(void)
{
GPIO_InitTypeDefGPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDefNVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2|RCC_APB1Periph_USART3, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_GPIOA |RCC_APB2Periph_GPIOB , ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
/* USART3 TX-->B.10RX-->B.11 */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &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_ITConfig(USART1, USART_IT_RXNE, ENABLE);
USART_Init(USART3, &USART_InitStructure);
USART_ITConfig(USART3, USART_IT_RXNE, ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=2;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
USART_Cmd(USART1, ENABLE);
USART_Cmd(USART3, ENABLE);
}
/*******************************************************************************
* Function Name: main
* Description : Main program.
* Input : None
* Return : None
*******************************************************************************/
int main(void)
{
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
Delay_Init();
USART_Printf_Init(115200);
printf("SystemClk:%d\r\n",SystemCoreClock);
printf("USART Interrupt TEST\r\n");
USARTx_CFG(); /* USART2 & USART3 INIT */
while(1)
{
}
}
/*******************************************************************************
* Function Name: USART2_IRQHandler
* Description : This function handles USART2 global interrupt request.
* Input : None
* Return : None
*******************************************************************************/
void USART1_IRQHandler(void)
{
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
// RxBuffer1 = USART_ReceiveData(USART1);
printf("R");
// if(RxCnt1 == TxSize2)
// {
// USART_ITConfig(USART2, USART_IT_RXNE, DISABLE);
// Rxfinish1=1;
// }
}
}
/*******************************************************************************
* Function Name: USART3_IRQHandler
* Description : This function handles USART3 global interrupt request.
* Input : None
* Return : None
*******************************************************************************/
void USART3_IRQHandler(void)
{
if(USART_GetITStatus(USART3, USART_IT_RXNE) != RESET)
{
RxBuffer2 = USART_ReceiveData(USART3);
if(RxCnt2 == TxSize1)
{
USART_ITConfig(USART3, USART_IT_RXNE, DISABLE);
Rxfinish2=1;
}
}
}
另外debug中配置usart2打印log，我们main函数中声明了中断；
void USART1_IRQHandler(void) __attribute__((interrupt("WCH-Interrupt-fast")));
但通过测试，始终无法进入USART1_IRQHandler的接收中断；补充一下，是通过串口调试工具的TX发到USART1的RX的，然后通过USART2的TX打印log
您好，附件为串口1接收中断例程，可以参考一下。
参考一下相关例程把 WCHTech2 发表于 2022-3-10 19:04
您好，附件为串口1接收中断例程，可以参考一下。
感谢大佬 参考下相关例程
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