以前的代码,你可以参考下.里面传的是float,long int只要改下就行了
//=================头文件======================
#ifndef __UART_H_
#define __UART_H_
#include <stc8f.h>
#include <intrins.h>
typedef union //float联合体
{
float value;
unsigned char byte[4];
}float_data;
#define FOSC 11059200UL //晶振频率
#define BRT (65536-FOSC/9600/4) //波特率设置
void UartInit();
void UartSend(char dat);
void SendUint(unsigned int value);
void UartSendStr(char *p);
void SendFloat(float_data* float_union);
#endif
//===================C文件=====================
#include "uart.h"
char Uart_get_char;
void UartIsr() interrupt 4
{
RI = 0;
Uart_get_char = SBUF; //读
}
void UartInit()
{
SCON = 0x50;
T2L = BRT; //波特率设置
T2H = BRT>>8;
AUXR = 0x15;
ES = 1;
EA = 1;
}
void UartSend(char dat) //送1个字节
{
SBUF = dat;
while(!TI);
TI = 0;
}
void SendUint(unsigned int value) //送U16数据
{
unsigned char valueH = 0;
unsigned char valueL = 0;
valueL |= value;
valueH |= value >> 8;
UartSend(valueL);
UartSend(valueH);
}
void SendFloat(float_data* float_union) //送float数据
{
UartSend(float_union->byte[3]);
UartSend(float_union->byte[2]);
UartSend(float_union->byte[1]);
UartSend(float_union->byte[0]);
}
//==============================================
基本都是从手册上照搬的代码,稍作修改整理就行了. |