N76E003 双串口 uart0收发正常，uart1 发送异常接收正常

只看该作者 · 2022-11-14 23:35

附源代码根据BSP 包例程改写，测试结果uart0 收发逻辑正常，uart1 接收正常，发送不正常没反应
/*---------------------------------------------------------------------------------------------------------*/
/*                                                                                                       */
/* 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-0 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 interrupt, echo received data.
* FUNCTION_INPUTS : P0.7(RXD) serial input
* FUNCTION_OUTPUTS: P0.6(TXD) serial output
* Following setting in Common.c
******************************************************************************/
#if 0
//void InitialUART0_Timer1(UINT32 u32Baudrate) //T1M = 1, SMOD = 1
//{
//  P06_Quasi_Mode;
//  P07_Quasi_Mode;
//
// SCON = 0x52;    //UART0 Mode1,REN=1,TI=1
// TMOD |= 0x20; //Timer1 Mode1
//
// set_SMOD;       //UART0 Double Rate Enable
// set_T1M;
// clr_BRCK;       //Serial port 0 baud rate clock source = Timer1
//
//#ifdef FOSC_160000
// TH1 = 256 - (1000000/u32Baudrate+1);             /*16 MHz */
//#endif
// set_TR1;
//}
////---------------------------------------------------------------
//void InitialUART0_Timer3(UINT32 u32Baudrate) //use timer3 as Baudrate generator
//{
//  P06_Quasi_Mode;
//  P07_Quasi_Mode;
//
// SCON = 0x52;    //UART0 Mode1,REN=1,TI=1
// set_SMOD;       //UART0 Double Rate Enable
// T3CON &= 0xF8; //T3PS2=0,T3PS1=0,T3PS0=0(Prescale=1)
// set_BRCK;       //UART0 baud rate clock source = Timer3
//#ifdef FOSC_160000
// RH3 = HIBYTE(65536 - (1000000/u32Baudrate)-1); /*16 MHz */
//  RL3 = LOBYTE(65536 - (1000000/u32Baudrate)-1); /*16 MHz */
//#endif
// set_TR3;       //Trigger Timer3
//}
#endif
/*******************************************************************************
* FUNCTION_PURPOSE: Main function
******************************************************************************/
void main (void)
{
InitialUART1_Timer3(9600);          //UART0 Baudrate initial,T1M=0,SMOD=0
InitialUART0_Timer1(9600);          //UART0 Baudrate initial,T1M=0,SMOD=0
//IE = 0x90;
set_ES_1;             //For interrupt enable
set_ES;
set_EA;
while(1)
{
      if(UART_BUFFER[0] == 0x56)
      {
         UART_BUFFER[0] = 0;
         Send_Data_To_UART1(0x56);
         Send_Data_To_UART0(0x56);
      }
      if(UART_BUFFER[0] == 0x57)
      {
         UART_BUFFER[0] = 0;
         Send_Data_To_UART1(0x57);
         Send_Data_To_UART0(0x57);
      }
      if(UART_BUFFER[0] == 0x58)
      {
         UART_BUFFER[0] = 0;
         Send_Data_To_UART1(0x58);
         Send_Data_To_UART0(0x58);
      }
      if(UART_BUFFER[0] == 0x59)
      {
         UART_BUFFER[0] = 0;
         Send_Data_To_UART1(0x59);
         Send_Data_To_UART0(0x59);
      }
}
}
void SerialPort0_ISR(void) interrupt 4
{
if (RI==1)
{                                     /* if reception occur */
      clr_RI;
      clr_TI;
      /* clear reception flag for next reception */
      UART_BUFFER[0] = SBUF;
      u16CNT ++;
      riflag =1;
}
if(TI==1)
{
      clr_TI;                            /* if emission occur */
}
}
void SerialPort1_ISR(void) interrupt 15
{
if (RI_1==1)
{                                     /* if reception occur */
      clr_RI_1;
      clr_TI_1;
      /* clear reception flag for next reception */
      UART_BUFFER[0] = SBUF_1;
      u16CNT ++;
      riflag =1;
}
if(TI_1==1)
{
      clr_TI_1;                            /* if emission occur */
}
}

只看该作者 · 2022-11-14 23:35

/*---------------------------------------------------------------------------------------------------------*/
/*                                                                                                       */
/* Copyright(c) 2016 Nuvoton Technology Corp. All rights reserved.                                        */
/*                                                                                                       */
/*---------------------------------------------------------------------------------------------------------*/

//***********************************************************************************************************
//  Nuvoton Technoledge Corp.
//  Website: http://www.nuvoton.com
//  E-Mail : MicroC-8bit@nuvoton.com
//  Date : Apr/21/2016
//***********************************************************************************************************

#include "N76E003.h"
#include "Common.h"
#include "Delay.h"
#include "SFR_Macro.h"
#include "Function_define.h"

//----------------------------------------------------------------------------------
// UART0 baud rate initial setting
//----------------------------------------------------------------------------------
void InitialUART0_Timer1(UINT32 u32Baudrate) //T1M = 1, SMOD = 1
{
P06_Quasi_Mode; //Setting UART pin as Quasi mode for transmit
P07_Quasi_Mode; //Setting UART pin as Quasi mode for transmit

SCON = 0x50;      //UART0 Mode1,REN=1,TI=1
TMOD |= 0x20; //Timer1 Mode1

set_SMOD;         //UART0 Double Rate Enable
set_T1M;
clr_BRCK;         //Serial port 0 baud rate clock source = Timer1

#ifdef FOSC_160000
TH1 = 256 - (1000000/u32Baudrate+1);             /*16 MHz */
#endif
#ifdef FOSC_166000
TH1 = 256 - (1037500/u32Baudrate);                /*16.6 MHz */
#endif
set_TR1;
set_TI; //For printf function must setting TI = 1
}
//---------------------------------------------------------------
void InitialUART0_Timer3(UINT32 u32Baudrate) //use timer3 as Baudrate generator
{
P06_Quasi_Mode; //Setting UART pin as Quasi mode for transmit
P07_Quasi_Mode; //Setting UART pin as Quasi mode for transmit

SCON = 0x50;    //UART0 Mode1,REN=1,TI=1
set_SMOD;       //UART0 Double Rate Enable
T3CON &= 0xF8; //T3PS2=0,T3PS1=0,T3PS0=0(Prescale=1)
set_BRCK;       //UART0 baud rate clock source = Timer3

#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
set_TI;    //For printf function must setting TI = 1
}

UINT8 Receive_Data_From_UART0(void)
{
UINT8 c;
while (!RI);
c = SBUF;
RI = 0;
return (c);
}

void Send_Data_To_UART0 (UINT8 c)
{
TI = 0;
SBUF = c;
while(TI==0);
}

//----------------------------------------------------------------------------------
// UART1 baud rate initial setting
//----------------------------------------------------------------------------------
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
}

UINT8 Receive_Data_From_UART1(void)
{
UINT8 c;

while (!RI_1);
c = SBUF_1;
RI_1 = 0;
return (c);
}

void Send_Data_To_UART1 (UINT8 c)
{
TI_1 = 0;
SBUF_1 = c;
while(TI_1==0);
}

/*==========================================================================*/
#ifdef SW_Reset
void SW_Reset(void)
{
TA = 0xAA;
TA = 0x55;
set_SWRST;
}
#endif
/*==========================================================================*/