N76E003串口1无法进入接收中断怎么解决？

jueduilingdu · 2019-2-12 16:48

本帖最后由 jueduilingdu 于 2019-2-13 16:48 编辑

N76E003串口1无法进入接收中断怎么解决？
void SerialPort1_ISR(void) interrupt 15
{
if (RI_1==1)
{                                     /* if reception occur */
      clr_RI_1;                            /* clear reception flag for next reception */
      UART_BUFFER[u16CNT] = SBUF_1;
      u16CNT ++;
                              Send_Data_To_UART0(0x33);
                              riflag =1;
}
if(TI_1==1)
{
      clr_TI_1;                            /* if emission occur */
}
}
这个中断不会触发是什么问题呢？
主函数配置如下
void main (void)
{
      P12_PushPull_Mode;             // For I/O toggle display

                              InitialUART1_Timer3(115200);
                              set_ES_1;                                     //For interrupt enable
                              set_EA;

                              while(1)
                              {
                                                            if (riflag)
                                                            {
                                                                                                                              P12 = ~ P12;                      //Receive each byte P12 toggle, never work under debug mode
                                                                                                                              riflag = 0;
                                                            }
                              }

}

huangcunxiake · 2019-2-12 20:45

/*---------------------------------------------------------------------------------------------------------*/
/* */
/* Copyright(c) 2017 Nuvoton Technology Corp. All rights reserved. */
/* */
/*---------------------------------------------------------------------------------------------------------*/
//***********************************************************************************************************
// Nuvoton Technoledge Corp.
// Website: http://www.nuvoton.com
// E-Mail : MicroC-8bit@nuvoton.com
// Date : Apr/21/2017
//***********************************************************************************************************
//***********************************************************************************************************
// File Function: N76E003 UART-1 Mode1 demo code
//***********************************************************************************************************
#include "N76E003.h"
#include "Common.h"
#include "Delay.h"
#include "SFR_Macro.h"
#include "Function_define.h"
#define BUFFER_SIZE 16
UINT8 UART_BUFFER[BUFFER_SIZE],temp;
UINT16 u16CNT=0,u16CNT1=0;
bit riflag;
/******************************************************************************
* FUNCTION_PURPOSE: Serial port 1 interrupt, echo received data.
* FUNCTION_INPUTS : P0.2(RXD) serial input
* FUNCTION_OUTPUTS: P1.6(TXD) serial output
* Following setting in Common.c
******************************************************************************/
#if 0
//void InitialUART1_Timer3(UINT32 u32Baudrate) //use timer3 as Baudrate generator
//{
// P02_Quasi_Mode; //Setting UART pin as Quasi mode for transmit
// P16_Quasi_Mode; //Setting UART pin as Quasi mode for transmit
//
// SCON_1 = 0x50; //UART1 Mode1,REN_1=1,TI_1=1
// T3CON = 0x08; //T3PS2=0,T3PS1=0,T3PS0=0(Prescale=1), UART1 in MODE 1
// clr_BRCK;
//
//#ifdef FOSC_160000
// RH3 = HIBYTE(65536 - (1000000/u32Baudrate)-1); /*16 MHz */
// RL3 = LOBYTE(65536 - (1000000/u32Baudrate)-1); /*16 MHz */
//#endif
//#ifdef FOSC_166000
// RH3 = HIBYTE(65536 - (1037500/u32Baudrate)); /*16.6 MHz */
// RL3 = LOBYTE(65536 - (1037500/u32Baudrate)); /*16.6 MHz */
//#endif
// set_TR3; //Trigger Timer3
//}
#endif
void SerialPort1_ISR(void) interrupt 15
{
if (RI_1==1)
{ /* if reception occur */
clr_RI_1; /* clear reception flag for next reception */
UART_BUFFER[u16CNT] = SBUF_1;
u16CNT ++;
riflag =1;
}
if(TI_1==1)
{
clr_TI_1; /* if emission occur */
}
}
/****************************************************************************************************************
* FUNCTION_PURPOSE: Main function
!!! N76E003 UART1 pin also occupied by debug pin,
please remove Nu-link or not in debug mode to test UART1 function.
External UART1 connect also disturb debug download
***************************************************************************************************************/
void main (void)
{
P12_PushPull_Mode; // For I/O toggle display
#if 0
//for Simple use UART1 transmit out
InitialUART1_Timer3(115200);
while(1)
Send_Data_To_UART1(0x55);
#else
// For interrupt setting check receive
InitialUART1_Timer3(115200);
set_ES_1; //For interrupt enable
set_EA;
while(1)
{
if (riflag)
{
P12 = ~ P12; //Receive each byte P12 toggle, never work under debug mode
riflag = 0;
}
}
#endif
}