一个 c 语言的串口通信程序范例
最近接触一个项目,用 HL-C1C 激光位移传感器+易控组态软件完成生产线高度跳变检测,
好久没有接触 c c#,一些资料,找来做个记录,也许大家用的着
#include <stdio.h>
#include <dos.h>
#include <conio.h>
#include <string.h>
#define COM232 0x2f8
#define COMINT 0x0b
#define MaxBufLen 500
#define Port8259 0x20
#define EofInt 0x20
static int comportaddr;
static char intvectnum;
static unsigned char maskb;
static unsigned char Buffer[MaxBufLen];
static int CharsInBuf,CircIn,CircOut;
static void (interrupt far *OldAsyncInt)();
static void interrupt far AsyncInt(void);
void Init_COM(int ComPortAddr, unsigned char IntVectNum, int Baud,
unsigned char Data, unsigned char Stop, unsigned char Parity)
{
unsigned char High,Low;
int f;
comportaddr=ComPortAddr;
intvectnum=IntVectNum;
CharsInBuf=0;CircIn=0;CircOut=0;
f=(Baud/100);
f=1152/f; High=f/256;
Low=f-High*256;
outp(ComPortAddr+3,0x80);