N76E885双串口的问题

只看该作者 · 2018-5-9 16:01

求大侠搭救：我用N76E885双串口，在keil中进debug都到不了run to main, 关掉任意一个串口就可以debug run to main

#define SYS_CLK_EN    1
#define SYS_SEL       2
#define SYS_DIV_EN    0                //0: Fsys=Fosc, 1: Fsys = Fosc/(2*CKDIV)
#define SYS_DIV       1

#define PRE_SCALAR    7
#define WDT_MODE       0

bit BIT_TMP;

UINT8 UART0_RX_FLAG;
UINT8 UART0_RX_BYTE;

UINT8 UART1_RX_FLAG;
UINT8 UART1_RX_BYTE;

/*******************************************************************************
* FUNCTION_PURPOSE: Main function
******************************************************************************/
void main (void)
{
/* Note
   MCU power on system clock is HIRC (22.1184MHz), so Fsys = 22.1184MHz
*/

Set_All_GPIO_Quasi_Mode();                //Set all GPIO are Quasi Mode

UART0_RX_FLAG = 0;
UART0_RX_BYTE = 0;

UART1_RX_FLAG = 0;
UART1_RX_BYTE = 0;

InitialUART0_Timer1_Type1(9600);          //UART0 Baudrate initial,T1M=0,SMOD=0
InitialUART1_Timer3(9600);                   /* 9600 Baud Rate*/

/* Change system closk source */
#if SYS_CLK_EN == 1
      #if SYS_SEL == 0
         System_Clock_Select(E_HXTEN); //Fosc = 2~25MHz XTAL
      #elif SYS_SEL == 1
         System_Clock_Select(E_LXTEN); //Fosc = 32.768KHz XTAL
      #elif SYS_SEL == 2
         System_Clock_Select(E_HIRCEN);  //Fosc = 22.1184MHz Internal RC
      #elif SYS_SEL == 3
         System_Clock_Select(E_LIRCEN);  //Fosc = 10KHz Internal RC
      #elif SYS_SEL == 4
         System_Clock_Select(E_OSCEN); //Fosc = OSC-In External OSC
      #endif
#endif

#if SYS_DIV_EN == 1
      CKDIV = SYS_DIV;                   //Fsys = Fosc / (2* CLKDIV) = Fcpu
#endif

      TA = 0x0AA;
      TA = 0x055;
#if PRE_SCALAR == 0
      WDCON = 0x00;
#elif PRE_SCALAR == 1
      WDCON = 0x01;
#elif PRE_SCALAR == 2
      WDCON = 0x02;
#elif PRE_SCALAR == 3
      WDCON = 0x03;
#elif PRE_SCALAR == 4
      WDCON = 0x04;
#elif PRE_SCALAR == 5
      WDCON = 0x05;
#elif PRE_SCALAR == 6
      WDCON = 0x06;
#elif PRE_SCALAR == 7
      WDCON = 0x07;
#endif

while(1)
{
      set_WDTEN;                               //WDT run

if( UART0_RX_FLAG )
{
UART0_RX_FLAG = 0;
Send_Data_To_UART0( UART0_RX_BYTE );
}
if( UART1_RX_FLAG )
{
UART1_RX_FLAG = 0;
Send_Data_To_UART1( UART1_RX_BYTE );
}
}
}

/******************************************************************************
* FUNCTION_PURPOSE: Serial interrupt, echo received data.
* FUNCTION_INPUTS : P2.0(RXD) serial input
* FUNCTION_OUTPUTS: P0.3(TXD) serial output
******************************************************************************/
void Serial0_ISR (void) interrupt 4
{
if (RI == 1)
{
UART0_RX_FLAG = 1;
UART0_RX_BYTE = SBUF;
      clr_RI;                               // Clear RI (Receive Interrupt).
}
if (TI == 1)
{
      clr_TI;                               // Clear TI (Transmit Interrupt).
}
}

/***************************************************************************************
* FUNCTION_PURPOSE: serial-1 interrupt, echo received data.
* FUNCTION_INPUTS:  P2.4(TXD) serial-1 input
* FUNCTION_OUTPUTS: P2.5(RXD) serial-1 output
**************************************************************************************/
void Serial_1_ISR(void) interrupt 15
{

if (RI_1 == 1)
{
// UART1_RX_FLAG = 1;
// UART1_RX_BYTE = SBUF_1;
      clr_RI_1;                               // Clear RI (Receive Interrupt).
}
if (TI_1 == 1)
{
      clr_TI_1;                               // Clear TI (Transmit Interrupt).
}
}