aw16和51串口通讯的问题，低波特率可以连上，高不行。谢谢

波特, 通讯

做SCI和51串口通讯的时候，波特率为1200的时候可以搞定，为62500的时候就完蛋了，（因51方面限制，波特率必须要62500）用中断方式接收，能接收到，但接收的数不对。这是怎么回事呢？

#include /* for EnableInterrupts macro */
#include "derivative.h" /* include peripheral declarations */
#include "mainhead.h"

#define GREEN PTFD_PTFD4
#define RED PTAD_PTAD0

#define ON 1
#define OFF 0
#define YES 1
#define NO 0

byte FlashDelayCon;
byte COMM_BUF;

#define LedFlash FLAG_FLAG0
#define RD_FLAG FLAG_FLAG1

/*定时器1溢出中断服务程序*/
interrupt VectorNumber_Vtpm1ovf void isrTimer1(void) /*10ms溢出一次*/
{
TPM1SC &= 0x7F;

if (++FlashDelayCon > 15)
{
FlashDelayCon = 0;
LedFlash = ~LedFlash;
}

}

/*SCI1接收中断服务程序*/
interrupt VectorNumber_Vsci1rx void isrSCI1(void)
{
if (SCI1S1_RDRF)
{
COMM_BUF = SCI1D; //存缓冲区内容
GREEN = ON;
RED = OFF;
RD_FLAG = YES;
}
}
/*发送一个字节*/
void SCI_SEND_1(byte BUF)
{
while (!SCI1S1_TDRE);
SCI1D = BUF;
while (!SCI1S1_TC);

GREEN = OFF;
RED = ON;
}

/*LED闪烁功能程序*/
void LEDFlashFun(void)
{
if (LedFlash)
{
GREEN = ON;
RED = OFF;
}
else
{
GREEN = OFF;
RED = ON;
}

}

/*ICG初始化*/
void ICG_Init(void)
{
ICGC1 = 0b01111000;
ICGC2 = 0b00110000;

while(!ICGS1_LOCK);
SOPT=0x00; /* important step!*/

}

/*IO端口初始化*/
void IO_Init(void)
{

PTFDD_PTFDD4 = 1; //设定PTF4为输出端口
PTADD_PTADD0 = 1; //设定PTA0为输出端口
}

/*定时器1初始化,用作时间基准*/
void TPM1_Init(void)
{

TPM1SC = 0b01001110; //TPM源为BUSCLK,64分频，允许溢出中断，启动计数
TPM1CNTH = 0x00; //每3.2uS计数一次
TPM1CNTL = 0x00; //初值清零
//最大计数209MS.
TPM1MOD = 3125; //每隔10ms溢出一次

}

/*串口初始化*/
void SCI_Init(void)
{

SCI1BDH = 0x00;
SCI1BDL = 0x14; //设定baud为62500,BUSCLK = 20M
SCI1C1 = 0x00; //8bit
SCI1C2 = 0x2C; //允许接收中断，接收和发送允许
}

void main(void)
{
DisableInterrupts;

ICG_Init();
IO_Init();
TPM1_Init();
SCI_Init();
FlashDelayCon = 0;

EnableInterrupts; /* enable interrupts */
/* include your code here */
GREEN = OFF;
RED = OFF;

for(;;)
{

//LEDFlashFun();
if (RD_FLAG)
{
RD_FLAG = NO;

if (COMM_BUF == 0x01)
{
SCI_SEND_1(0x08);
}
else
{
GREEN = ON;
}
}

__RESET_WATCHDOG(); /* feeds the dog */
} /* loop forever */
/* please make sure that you never leave main */
}

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