寻网络/串行口通讯程序。150分

2000-11-09 08:12:00 366 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

惠普笔记本如何通过HDMI连接电视机对于许多拥有惠普笔记本的用户来说，利用HDMI线将电脑与电视机相连，无疑是一个享受大屏幕视觉盛宴的绝佳选择。本文将详细介绍惠普笔记本如何通过HDMI连接电视机，并设置合适的显示模式，让你轻松享受大屏幕带来的震撼体验。通过HDMI将惠普笔记本连接到电视机上，不仅可以让你享受大屏幕带来的震撼视觉体验，还可以实现多任务操作、提高工作效率。希望这些内容能帮助你轻松实现HDMI连接，享受更加丰富的娱乐和工作体验。市场上HDMI线的品牌和质量参差不齐，建议选择知名品牌，避免使用劣质线材导致的信号不稳定或画面失真。阅读详情

我想做一个网络发送/接收和串行口通讯程序的程序，那位有请给个例子。
如发送一个十六进制数串"0x1a，0x45,0x34,...",应该如何入手？

...全文

电视机与遥控器（友元类）电视机与遥控器（友元类）题目描述有如下的电视类和遥控器类，遥控器可以控制电视。要求如下：1. 实现并完善Tv类；2. 将Remote设为Tv的友元类，以支持在Remote类中对Tv方法的调用。3. 在main函数中，通过Remote实例对TV实例进行操作。输入第一行，电视初始状态，依次为state,volume,channel,mode,input的初始值。第二行，利用遥控... 阅读详情

xiaohedou

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xiaohedou 2001-01-04

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感谢您的参与

xiaohedou 2000-12-11

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感谢您的参与，我应该如何给您加分。。。

tchaikov 2000-11-11

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tchaikov 2000-11-11

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通过网络发送部分用TCP/IP Socket不是可以吗？

xiaohedou 2000-11-11

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I have got a task to cotrol a machine and a serval pcs under WinNT system.
Command to machine link with a serial port and/or network,and other PCs
link with network.I also want to finf a man to help.

Thinks .
Good luck.

tchaikov 2000-11-11

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唉！怎么同时发的。

能不能详细说一下 Network program 中有什么具体要求，我没搞清楚。

tchaikov 2000-11-11

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到
http://www.csdn.net/dev/Delphi/
中VCL控件大集合中找"通讯"一栏中的前几个便是。

xiaohedou 2000-11-11

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Think you. I just find a Delphi Example for serial port communication.
Now I want a Network program.

tchaikov 2000-11-11

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哦，对不起，我看到这个帖子是在C/C++版的（外面现在显示怎么是DELPHI版了？），以为你在DOS下做.
Windows下用
CreateFile("\\\\..\\COM1",...)
不行吗？
在本站的程序员大本营中有很多这样的源码和例子，你可以去找找。

xiaohedou 2000-11-11

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Thinks a lot,tchaikov.
But I want to use this program under WINNT/2000 system.I think 'outport' functions can't work correctly.
Think you for your help.

tchaikov 2000-11-09

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/* Serial.h */

void closeserial(void);
void interrupt com_int (void);
int getccb(void);
void closeserial(void);
void initserial (void);
void i_disable (void);
void i_enable (int pnum);
void resvects (void);
void setvects (void);
void comon (void);
int SerialOut (char x);
int setserial (int Port,int Speed,int Parity,int Bits,int StopBit);

#define TRUE 1
#define FALSE 0
#define SBUFSIZ 0x2000

#define COM1BASE 0x3F8 /* base port for com1 */
#define COM2BASE 0x2F8 /* base port for com2 */

/* */
/* registers for serial port (not all used) */
/* */

#define TX 0 /* Transmit register */
#define RX 0 /* receive register */
#define IER 1 /* Interrupt Enable */
#define IIR 2 /* Interrupt ID */
#define LCR 3 /* Line control */
#define MCR 4 /* Modem control */
#define LSR 5 /* Line Status */
#define MSR 6 /* Modem Status */
#define DLL 0 /* Divisor Latch Low */
#define DLH 1 /* Divisor latch high */

/* */
/* Status values */
/* */

#define RCVRDY 0x01 /* Data ready flag */
#define OVRERR 0x02 /* Overrun error */
#define PRTYERR 0x04 /* Parity error */
#define FRMERR 0x08 /* Framing error */
#define BRKINT 0x10 /* Break interrupt */
#define XMTRDY 0x20 /* Transmit register empty */
#define XMTRSR 0x40 /* Tx shift register empty */

/* */
/* Status values for modem register */
/* */

#define CTS 0x10
#define DSR 0x20
#define RI 0x40
#define CD 0x80

#define DTR 0x01
#define RTS 0x02
#define OUT2 0x08

#define IMR 0x21
#define ICR 0x20
#define EOI 0x20
#define RX 0
#define IIR 2
#define RX_MASK 7
#define RX_ID 4

#define IRQ3 0xf7
#define IRQ4 0xef

#define MCR 4
#define IER 1
#define MC_INT 8
#define RX_INT 1
#define RX_MASK 7
#define RX_ID 4

#define BUFOVFL 1 /* buffer overflowed */

#define COM1 1
#define COM2 2

#define NO_PAR 0
#define EV_PAR 1
#define OD_PAR 2

---------------------------------------------------------------
/*
==========================
c.language/listings #115, from barryn, 8544 chars, Sat Aug 29 17:17:28 1987
--------------------------
TITLE: Communications routines in Turbo C

The following code shows how to take advantage of some of
the TurboC extensions to the C language to do asynchronous
communications (without having to write supporting assembly-
language routines). The code was supplied by Peter Ibbotson of
Borland. After the communications-related functions themselves,
you'll find a small main() section of code that uses those functions
to implement a rudimentary glass-TTY terminal program. (I say
rudimentary to mean that control characters are not recognized and
there are no file transfer, dialing directory, etc. features.)

First, here's Serial.C:
*/

/* SERIAL.C */

#include "serial.h"
#include <dos.h>
#include <stdio.h>
#include <conio.h>
#include <bios.h>
#include <process.h>

int SError;
int portbase=0;
void interrupt (*oldvects[2])();
char ccbuf[SBUFSIZ];
int startbuf=0;
int endbuf=0;

/* this does the hard work (handling interrupts) */

void interrupt com_int (void)

{ disable ();
if ((inportb (portbase+IIR) & RX_MASK)==RX_ID)
{ if (((endbuf+1) & 0x1fff)==startbuf)
SError=BUFOVFL;
ccbuf[endbuf++]=inportb (portbase+RX);
endbuf&=0x1fff;
};
outportb (ICR,EOI);
enable ();
}

/* this routine returns the currently value in the buffer */

int getccb(void)

{ int res;
if (endbuf==startbuf) return (-1);
res=(int) ccbuf[startbuf];
startbuf=(startbuf+1) % SBUFSIZ;
return (res);
}

void setvects (void)

{ oldvects[0]=getvect(0x0b);
oldvects[1]=getvect(0x0c);
setvect(0x0b,com_int);
setvect(0x0c,com_int);
}

void resvects (void)

{ setvect(0x0b,oldvects[0]);
setvect(0x0c,oldvects[1]);
}

void i_enable (int pnum)

{ int c;
disable();
c = inportb (portbase+MCR) ¦ MC_INT;
outportb (portbase+MCR,c);
outportb (portbase+IER,RX_INT);
c = inportb (IMR) & (pnum==2 ? IRQ3 : IRQ4);
outportb (IMR,c);
enable();
}

void i_disable (void)

{ int c;
disable ();
c=inportb (IMR) ¦ ~IRQ3 ¦ ~IRQ4;
outportb (IMR,c);
outportb (portbase + IER,0);
c=inportb (portbase+MCR) & ~MC_INT;
outportb (portbase+MCR,c);
enable ();
}

void comon (void)

{ int c,pnum;
pnum = portbase == COM1BASE ? 1 : 2;
i_enable (pnum);
c=inportb (portbase + MCR) ¦ DTR ¦ RTS;
outportb (portbase + MCR,c);
}

void initserial (void)

{ endbuf=startbuf=0;
setvects();
comon();
};

void comoff (void)

{ i_disable ();
outportb (portbase+MCR,0);
}

void closeserial(void)

{ comoff();
resvects();
};

/* this outputs a serial character */

int SerialOut (char x)

{ long timeout = 0x0000ffff;
outportb (portbase+MCR,OUT2¦DTR¦RTS);
/* wait for clear to send */
while ((inportb(portbase + MSR) & CTS)==0)
if ((--timeout)==0) return (-1);
timeout=0x0000ffff;
/* wait for outport register to clear */
while ((inportb(portbase+LSR) & DSR)==0)
if ((--timeout)==0) return (-1);
disable ();
outportb (portbase+TX,x);
enable ();
return (0);
}

/* this routine sets which port we are working with */

int SetPort (int Port)

{ int far * RS232_Addr;
int Offset;

switch (Port) /* sort out the base address */
{ case 1 : Offset=0x0000; break; /* only ports one & two allowed */
case 2 : Offset=0x0002; break;
default : return (-1);
};
RS232_Addr=MK_FP(0x0040,Offset); /* find out where the port is */
if (*RS232_Addr==0) return (-1); /* if it ain't there return (-1)*/
portbase=*RS232_Addr; /* otherwise set portbase */
return (0);
}

/* this routine sets the speed; will accept funny baud rates */

int SetSpeed (int Speed)

{ char c;
int divisor;
if (Speed==0) return (-1); /* avoid divide by zero */
else divisor=(int)(115200L/Speed);
if (portbase==0) return (-11);
disable ();
c=inportb (portbase+LCR);
outportb (portbase+LCR,(c¦0x80)); /* set DLAB */
outportb (portbase+DLL,(divisor & 0x00ff)); /* set divisor */
outportb (portbase+DLH,((divisor>>8)&0x00ff));
outportb (portbase+LCR,c);
enable();
return (0);
}

/* This routine set the LCR */

int SetOthers (int Parity,int Bits,int StopBit)

{ int temp;
if (portbase==0) return (-1);
if ((Parity<NO_PAR) ¦¦ (Parity>OD_PAR)) return (-1);
if ((Bits<5) ¦¦ (Bits>8)) return (-1);
if ((StopBit<1) ¦¦ (StopBit>2)) return (-1);
temp=Bits-5;
temp¦=((StopBit==1) ? 0x00 : 0x04);
switch (Parity)
{ case NO_PAR : temp ¦= 0x00; break;
case OD_PAR : temp ¦= 0x08; break;
case EV_PAR : temp ¦= 0x18; break;
}
disable(); /* turn off interrupts */
outportb (portbase+LCR,temp);
enable(); /* turn em back on */
return (0);
}

/* This routine sets the ports */

int setserial (int Port,int Speed,int Parity,int Bits,int StopBit)

{ if (SetPort(Port)==-1) return(-1);
if (SetSpeed(Speed)==-1) return(-1);
if (SetOthers(Parity,Bits,StopBit)==-1) return (-1);
return (0);
}

/* short demo */
/* this opens the ports and echos to screen until */
/* ESCape received */

main ()

{ int c;

if (setserial (COM1,2400,NO_PAR,8,1) ==-1) exit (1);
initserial();
printf("You're now in terminal mode. Press ESC to quit the program.\n\n");

do {
if (kbhit()) {
c = getch();
if (c==27)
break;
SerialOut(c);
}

if ((c=getccb())!=-1)
putchar (c);

} while (c!=27);

closeserial();
}

xiaohedou 2000-11-09

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感谢所有参与的人！^o^

寻网络/串行口通讯程序。150分

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