函数inp / outp

//退出州 #define EXIT_SUCCESS 1 #define EXIT_UNSUCCESS 0 / ** *定义一些应该外包到配置文件的信息 * / // COM1的设备总和/> #define SUM_DEVICES_COM1 1 / ** *串口常量 * / //返回值/错误代码 #define SERIAL_OK 1 #define SERIAL_E_COMPORT_NOT_DEFINED -1 #define SERIAL_E_WRONG_COMPT -2 #define SERIAL_E_WRONG_COMORT -3 //寄存器3的串行模式 0-1：00 #define SERIAL_MODE_6BIT 0x01 //位 0-1：01 #define SERIAL_MODE_7BIT 0x02 //位 0-1：10 #define SERIAL_MODE_8BIT 0x03 //位 0-1：11 #define SERIAL_MODE_1STOPBIT 0x00 //位2：0 #define SERIAL_MODE_PARITY_NON 0x00 //位3-5：000 #define SERIAL_MODE_PARITY_EVEN 0x18 //位3-5：011 #define SERIAL_MODE_PARITY_MARK 0x28 //位3-5：101 #define SERIAL_MODE_PARITY_SPACE 0x38 //位3 -5：111 #define SERIAL_MODE_BREAK_CONTROL 0x40 //位6：0或 1中断控制; 向接收方发送中断条件 #define SERIAL_MODE_ENABLE_DLR 0x80 //位7：0或者 1 DLR访问启用;如果设置，寄存器0和1成为一个大字寄存器（ DLR） / ** *功能 - 原型 * / int serialInterfaceConnect（int nComPort，const int nBaud，const int nMode）; void serialInterfaceSetBaudrate（int nComPort，const int nBaud）; char serialInterfaceGetRegister（int nComPort，int nRegister）; void serialInterfaceSendData（int nComPort，char * cString ，int nLen）; int serialInterfaceConnect（int nComPort，const int nBaud，const int nMode）; int serialInterfaceGetPort（int nComPort） ; void serialInterfaceSendTelegram（int nCom，char cCommand，int nSensor）; char vaseGenerateChecksum（const char * cTelegram）; / ** *函数/例程 * / int main（）{ int i = 1; int c1 = 0，c2 = 0; int input; int ii = 0，rts_delay = 20000; / *连接到COM2 * / if（serialInterfaceConnect（serialInterfaceGetPort（2），1200， SERIAL_MODE_7BIT | SERIAL_MODE_2STOPBIT | SERIAL_MODE_PARITY_EVEN））{ printf（连接到COM2.\）; saveToLog（DEBUG，连接到COM2。）; / *连接到COM1 * / if（serialInterfaceConnect（serialInterfaceGetPort（1）， 19200， SERIAL_MODE_7BIT | SERIAL_MODE_2STOPBIT | SERIAL_MODE_PARITY_EVEN））{ printf（连接到COM1.\）; saveToLog（DEBUG，连接到COM1。）; / ** *初始化所有设备 * / printf （***初始化设备*** \ n）; for（i = 1; i< = SUM_DEVICES_COM1; i ++）{ // for每个设备在com1 //初始化传感器 printf（激活传感器％d。\ n，i）; saveToLog（INFO，激活传感器+ i）; serialInterfaceSendTelegram（serialInterfaceGetPort（1），''T''，i ）; //收到结果 c1 = 0; c1 = inp（serialInterfaceGetPort（1）+ 5）; //如果是，那么获得Char 而（c1& 1）{ c2 = inp（serialInterfaceGetPort（1）+ 0）; printf（" IN％c \ n"，c2）; //打印字符到屏幕 c1 = inp（serialInterfaceGetPort（1）+ 5）; } //结束时 //等待500毫秒延迟（500）; //获取版本 printf（从传感器获取版本％d。 \ n，i）; saveToLog（INFO，从获取版本） b $ b sensor。"）; saveToLog（INFO，i）; serialInterfaceSendTelegram（serialInterfaceGetPort（1），''V ''，i）; //接收结果 c1 = 0; c1 = inp（serialInterfaceGetPort（1） + 5）; //如果是这样，那么获得Char 而（c1& 1）{ c2 = inp（serialInterfaceGetPort（1）+ 0）; printf（" IN％c \ n"， C2）; //打印字符到屏幕 c1 = inp（serialInterfaceGetPort（1）+ 5）; } //结束时 } //每个设备的结束初始化 } else { printf（"错误：无法连接到COM1.\\\; saveToLog（错误，无法连接到 COM1。）; 返回EXIT_UNSUCCESS ; } } else { printf（"错误：无法连接到COM2.\\ \\ n"）; saveToLog（错误，无法连接到COM2。）; 返回EXIT_UNSUCCESS; } 返回EXIT_SUCCESS; } //结束函数main int serialInterfaceConnect（int nCom， const int nBaud，const int nMode） { / * *此函数连接到指定的串口 * / int nTmp = 0; outp（nCom + 1,0）; //关闭中断 outp（nCom + 3,0x80）; // SET DLAB ON serialInterfaceSetBaudrate（nCom，nBaud）; //设置波特率 nTmp = nMode& 0x03; if（nTmp == SERIAL_MODE_5BIT） saveToLog（DEBUG，" SERIAL_MODE_5BIT"）; if（nTmp == SERIAL_MODE_6BIT） saveToLog（DEBUG，" SERIAL_MODE_6BIT"）; if（nTmp == SERIAL_MODE_7BIT） saveToLog（DEBUG，" SERIAL_MODE_7BIT"） ; if（nTmp == SERIAL_MODE_8BIT） saveToLog（DEBUG，" SERIAL_MODE_8BIT"）; nTmp = nMode& ; 0x04; if（nTmp == SERIAL_MODE_1STOPBIT） saveToLog（DEBUG，" SERIAL_MODE_1STOPBIT"）; if（nTmp == SERIAL_MODE_2STOPBIT） saveToLog（DEBUG，" SERIAL_MODE_2STOPBIT"）; nTmp = nMode& 0x38; if（nTmp == SERIAL_MODE_PARITY_NON） saveToLog（DEBUG，" SERIAL_MODE_PARITY_NON"）; if（nTmp == SERIAL_MODE_PARITY_ODD） saveToLog（DEBUG，" SERIAL_MODE_PARITY_ODD"）; if（nTmp == SERIAL_MODE_PARITY_EVEN） saveToLog（DEBUG，" SERIAL_MODE_PARITY_EVEN"） ; if（nTmp == SERIAL_MODE_PARITY_MARK） saveToLog（DEBUG，" SERIAL_MODE_PARITY_MARK"）; if（nTmp == SERIAL_MODE_PARITY_SPACE） saveToLog（DEBUG，" SERIAL_MODE_PARITY_SPACE"）; nTmp = nMode& SERIAL_MODE_BREAK_CONTROL; if（nTmp == SERIAL_MODE_BREAK_CONTROL） saveToLog（DEBUG，" SERIAL_MODE_BREAK_CONTROL"）; nTmp = nMode& SERIAL_MODE_ENABLE_DLR; if（nTmp == SERIAL_MODE_ENABLE_DLR） saveToLog（DEBUG，" SERIAL_MODE_ENABLE_DLR"）; outp（nCom + 3，nMode）; outp（nCom + 2,0xC7）; // FIFO控制寄存器 saveToLog（DEBUG，关闭RTS。）; outp（nCom + 4,0x0）; //关闭DTR，RTS和OUT2 返回SERIAL_OK; } void serialInterfaceSetBaudrate（int nCom，const int nBaud）{ int nDivisor = 115200 / nBaud; // 0x1c200 / nBaud // nDivisor默认值： // ------------------ // 0x03 = 38,400 BPS // 0x01 = 115,200 BPS // 0x02 = 57,600 BPS // 0x06 = 19,200 BPS // 0x0C = 9,600 BPS // 0x18 = 4,800 BPS // 0x30 = 2,400 BPS // 0x60 = 1,200 BPS outp（nCom + 0，nDivisor）; //设置波特率 - 除数 Latch低字节 outp（nCom + 1,0 0x00）; //设置波特率 - 除数闩锁高字节 } void serialInterfaceSendData（int nCom，char * cString，int nLen）{ int i = 0; for（; i< nLen; i ++）{ outp（nCom + 0，cString [i]）; } //结束 } int serialInterfaceGetPort（int nComPort）{ / ** *这个函数得到了端口的地址 * / int nPort = 0; 开关（nComPort）{ 案例1： nPort = 0x3F8; 休息; 案例2： nPort = 0x2F8; 休息; 案例3： nPort = 0x3E8; 休息; 案例4： nPort = 0x2E8; 休息; 默认：返回SERIAL_E_COMPORT_NOT_DEFINED; } printf（"返回for％d comPort％d。\ n"，nComPort，nPort）; 返回nPort; } 无效的服务ialInterfaceSendTelegram（int nCom，char cCommand，int nSensor） { / * *此函数通过寄存器4发送定义的电报 *到传感器 * / char cBuf [10]; char cChecksum; char cTelegram [5]; int nLen; int i = 0; int c1，c2; printf（发送电报为％d。\ n，nCom）; //建立电报数据 cTelegram [0] =''b''; cTelegram [1] = cCommand; cTelegram [2] = nSensor + 48; // +''0'' cTelegram [3] =''\ r''; cTelegram [4] = 0x0; //生成校验和 cChecksum = baseGenerateChecksum（（char *）& cTelegram [0]）; //数据到发送 strcpy（cBuf，cTelegram）; nLen = strlen（cTelegram）; cBuf [4] = cChecksum; nLen ++; cBuf [5] = 0x0; nLen ++; / * *发送电报给COM * / printf（手动发送电报到OUT：％s \ n，cBuf）; // printf（Telegram is％d characters long.\ n，nLen）; //打开RTS outp（nCom + 4,0x0B）; //打开RTS for（i = 0; i< nLen; i ++）{ //发送数据 printf（" Data％c\ n。"，cBuf [i]）; outp（nCom + 0，cBuf [i]）; } //关闭RTS outp（nCom + 4,0x0）; //关闭RTS } //结束函数 char baseGenerateChecksum（const char * cTelegram）{ int nChecksum = 0; unsigned int i = 0; for（; i< strlen（cTelegram）; i ++）{ nChecksum = nChecksum ^ cTelegram [i]; // Jedes Zeichen mit XOR $ b $bverknüpfen } // Letztes Zeichen muss ein \（ASCII 13）sein。 if（cTelegram [strlen（cTelegram） - 1]！=''\ r''） nChecksum = nChecksum ^ ''\ r''; nChecksum = nChecksum ^ 0xFF; // invertieren nChecksum = nChecksum& 0x7F的; // auf 7 Bit beschneiden return（char）nChecksum; Hello members, i have a (time-(?))-problem with the serial-communication with an ms-dos 6.2 and the rs232-interface with an rs485-adapter behind theinterface. I program in C. As compiler, i am using Open Watcom to build a DOS 16-bit executable. When i send the telegram to the device, the device answers very fast(<1 millisecond).After complete sending, i set the rts to 0x0 and wait for the answer,but i got no answer, or i am to slow.Somewhere is the error. Maybe someone has some ideas or can give me some tips for bettercoding? Thanks for your help. Here is my complete code: #include <stdio.h>//#include <stdlib.h>#include <string.h>#include <conio.h>#include <dos.h>#include <time.h> /** Define some program keys*/ // Exit-States#define EXIT_SUCCESS 1#define EXIT_UNSUCCESS 0 /*** Define some information which should be outsourced to a config file*/ // Sum of devices at COM1#define SUM_DEVICES_COM1 1 /*** Constants for serial port*/ // Return values / Error codes#define SERIAL_OK 1#define SERIAL_E_COMPORT_NOT_DEFINED -1#define SERIAL_E_WRONG_COMPT -2#define SERIAL_E_WRONG_COMORT -3 // Serial mode for register 3#define SERIAL_MODE_5BIT 0x00 // Bit0-1: 00#define SERIAL_MODE_6BIT 0x01 // Bit0-1: 01#define SERIAL_MODE_7BIT 0x02 // Bit0-1: 10#define SERIAL_MODE_8BIT 0x03 // Bit0-1: 11#define SERIAL_MODE_1STOPBIT 0x00 // Bit 2: 0#define SERIAL_MODE_2STOPBIT 0x04 // Bit 2: 1#define SERIAL_MODE_PARITY_NON 0x00 // Bit 3-5: 000#define SERIAL_MODE_PARITY_ODD 0x08 // Bit 3-5: 001#define SERIAL_MODE_PARITY_EVEN 0x18 // Bit 3-5: 011#define SERIAL_MODE_PARITY_MARK 0x28 // Bit 3-5: 101#define SERIAL_MODE_PARITY_SPACE 0x38 // Bit 3-5: 111#define SERIAL_MODE_BREAK_CONTROL 0x40 // Bit 6: 0 or1 Break control;sends the receiver a break condition#define SERIAL_MODE_ENABLE_DLR 0x80 // Bit 7: 0 or1 DLR accessenable; if set, registers 0 and 1 become one big word register (theDLR) /*** Function-Prototypes*/ int serialInterfaceConnect(int nComPort, const int nBaud, const intnMode);void serialInterfaceSetBaudrate(int nComPort, const int nBaud);char serialInterfaceGetRegister(int nComPort, int nRegister);void serialInterfaceSendData(int nComPort, char *cString, int nLen);int serialInterfaceConnect(int nComPort, const int nBaud, const intnMode);int serialInterfaceGetPort(int nComPort);void serialInterfaceSendTelegram(int nCom, char cCommand, intnSensor);char vaseGenerateChecksum(const char *cTelegram); /*** Functions / Routines*/int main(){ int i=1;int c1=0,c2=0;int input;int ii=0, rts_delay=20000; /* Connect to COM2 */if(serialInterfaceConnect(serialInterfaceGetPort(2 ), 1200,SERIAL_MODE_7BIT | SERIAL_MODE_2STOPBIT | SERIAL_MODE_PARITY_EVEN)){printf("Connected to COM2.\n");saveToLog(DEBUG, "Connect to COM2."); /* Connect to COM1 */if(serialInterfaceConnect(serialInterfaceGetPort(1 ),19200,SERIAL_MODE_7BIT | SERIAL_MODE_2STOPBIT | SERIAL_MODE_PARITY_EVEN)){printf("Connected to COM1.\n");saveToLog(DEBUG, "Connect to COM1."); /*** Initialise all devices*/printf("*** Initialise devices ***\n");for(i=1;i<=SUM_DEVICES_COM1; i++){// for every device at com1 // Initialise sensorprintf("Activate sensor %d.\n",i);saveToLog(INFO, "Activate sensor " +i); serialInterfaceSendTelegram(serialInterfaceGetPort (1), ''T'', i); // Receive resultc1 = 0;c1 = inp(serialInterfaceGetPort(1) +5);// If so, then get Charwhile(c1 & 1){c2 =inp(serialInterfaceGetPort(1) + 0);printf("IN %c\n",c2); // Print Char to Screenc1 =inp(serialInterfaceGetPort(1) + 5);}// end while // wait 500 millisecondsdelay(500); // Get Versionprintf("Get Version from sensor %d.\n", i);saveToLog(INFO, "Get Version fromsensor.");saveToLog(INFO, i); serialInterfaceSendTelegram(serialInterfaceGetPort (1), ''V'', i); // Receive resultc1 = 0;c1 = inp(serialInterfaceGetPort(1) +5);// If so, then get Charwhile(c1 & 1){c2 =inp(serialInterfaceGetPort(1) + 0);printf("IN %c\n",c2); // Print Char to Screenc1 =inp(serialInterfaceGetPort(1) + 5);}// end while}// end initialise for every device}else {printf("Error: Could not connect to COM1.\n");saveToLog(ERROR, "Could not connect toCOM1.");return EXIT_UNSUCCESS;}}else {printf("Error: Could not connect to COM2.\n");saveToLog(ERROR, "Could not connect to COM2.");return EXIT_UNSUCCESS;} return EXIT_SUCCESS; }// end function main int serialInterfaceConnect(int nCom, const int nBaud, const int nMode){/** This function connect to an specified serial-port*/int nTmp = 0; outp(nCom + 1, 0); // Turn off interruptsoutp(nCom + 3, 0x80); // SET DLAB ONserialInterfaceSetBaudrate(nCom, nBaud); // Setbaud rate nTmp = nMode & 0x03;if(nTmp == SERIAL_MODE_5BIT)saveToLog(DEBUG, " SERIAL_MODE_5BIT");if(nTmp == SERIAL_MODE_6BIT)saveToLog(DEBUG, " SERIAL_MODE_6BIT");if(nTmp == SERIAL_MODE_7BIT)saveToLog(DEBUG, " SERIAL_MODE_7BIT");if(nTmp == SERIAL_MODE_8BIT)saveToLog(DEBUG, " SERIAL_MODE_8BIT"); nTmp = nMode & 0x04;if(nTmp == SERIAL_MODE_1STOPBIT)saveToLog(DEBUG, " SERIAL_MODE_1STOPBIT");if(nTmp == SERIAL_MODE_2STOPBIT)saveToLog(DEBUG, " SERIAL_MODE_2STOPBIT"); nTmp = nMode & 0x38;if(nTmp == SERIAL_MODE_PARITY_NON)saveToLog(DEBUG, " SERIAL_MODE_PARITY_NON");if(nTmp == SERIAL_MODE_PARITY_ODD)saveToLog(DEBUG, " SERIAL_MODE_PARITY_ODD");if(nTmp == SERIAL_MODE_PARITY_EVEN)saveToLog(DEBUG, " SERIAL_MODE_PARITY_EVEN");if(nTmp == SERIAL_MODE_PARITY_MARK)saveToLog(DEBUG, " SERIAL_MODE_PARITY_MARK");if(nTmp == SERIAL_MODE_PARITY_SPACE)saveToLog(DEBUG, " SERIAL_MODE_PARITY_SPACE"); nTmp = nMode & SERIAL_MODE_BREAK_CONTROL;if(nTmp == SERIAL_MODE_BREAK_CONTROL)saveToLog(DEBUG, " SERIAL_MODE_BREAK_CONTROL");nTmp = nMode & SERIAL_MODE_ENABLE_DLR;if(nTmp == SERIAL_MODE_ENABLE_DLR)saveToLog(DEBUG, " SERIAL_MODE_ENABLE_DLR"); outp(nCom + 3, nMode);outp(nCom + 2, 0xC7); // FIFO Control RegistersaveToLog(DEBUG, "Turn off RTS.");outp(nCom + 4, 0x0); // Turn off DTR, RTS, and OUT2 return SERIAL_OK; } void serialInterfaceSetBaudrate(int nCom, const int nBaud){int nDivisor = 115200 / nBaud; // 0x1c200 / nBaud // nDivisor defaults:// ------------------// 0x03 = 38,400 BPS// 0x01 = 115,200 BPS// 0x02 = 57,600 BPS// 0x06 = 19,200 BPS// 0x0C = 9,600 BPS// 0x18 = 4,800 BPS// 0x30 = 2,400 BPS// 0x60 = 1,200 BPS outp(nCom + 0, nDivisor); // Set Baud rate - DivisorLatch Low Byteoutp(nCom + 1, 0x00); // Set Baud rate - DivisorLatch High Byte } void serialInterfaceSendData(int nCom, char *cString, int nLen){int i=0;for(; i<nLen; i++){outp(nCom + 0, cString[i]);}// end for } int serialInterfaceGetPort(int nComPort){/*** This functions get the adress for the port*/int nPort = 0; switch(nComPort){case 1:nPort = 0x3F8;break;case 2:nPort = 0x2F8;break;case 3:nPort = 0x3E8;break;case 4:nPort = 0x2E8;break;default:return SERIAL_E_COMPORT_NOT_DEFINED;} printf("Return for %d comPort %d.\n", nComPort, nPort); return nPort; } void serialInterfaceSendTelegram(int nCom, char cCommand, int nSensor){/** This function sends a defined telegram over register 4* to the sensor*/ char cBuf[10];char cChecksum;char cTelegram[5];int nLen;int i = 0; int c1, c2; printf("Send Telegram for %d.\n", nCom); // Build telegram datacTelegram[0] = ''b'';cTelegram[1] = cCommand;cTelegram[2] = nSensor + 48; // + ''0''cTelegram[3] = ''\r'';cTelegram[4] = 0x0; // Generate checksumcChecksum = baseGenerateChecksum((char*) &cTelegram[0]); // Data to sendstrcpy(cBuf, cTelegram);nLen = strlen(cTelegram); cBuf[4] = cChecksum;nLen++;cBuf[5] = 0x0;nLen++; /** Send telegram to COM*/printf("Send telegram manually to OUT: %s\n", cBuf);// printf("Telegram is %d characters long.\n",nLen); // Open RTSoutp(nCom + 4, 0x0B); // Turn on RTS for(i=0;i<nLen;i++){// Send dataprintf("Data %c\n.", cBuf[i]);outp(nCom + 0, cBuf[i]);} // Close RTSoutp(nCom + 4, 0x0); // Turn off RTS } // end function char baseGenerateChecksum(const char *cTelegram){int nChecksum = 0;unsigned int i=0; for(; i<strlen(cTelegram); i++) {nChecksum = nChecksum ^ cTelegram[i]; // Jedes Zeichenmit XORverknüpfen} // Letztes Zeichen muss ein \r (ASCII 13) sein.if(cTelegram[strlen(cTelegram) - 1] != ''\r'')nChecksum = nChecksum ^ ''\r''; nChecksum = nChecksum ^ 0xFF; // invertierennChecksum = nChecksum & 0x7F; // auf 7 Bit beschneidenreturn (char) nChecksum; 推荐答案 On 10 Mai，14 ：28，Michael Post< michael.p ... @ purematic.dewrote： On 10 Mai, 14:28, Michael Post <[email protected]: 你好成员， Hello members, ...... 是outp和inp以最快的方式与界面沟通，或者其他功能更快？感谢您的帮助。 Michael ......is outp and inp the fastest way to communicate with the interface, orother functions are faster? Thanks for your help. Michael On 5 ??10è?, ????8ê±55·?, Michael Post< michael.p ... @ purematic.dewrote： On 5??10è?, ????8ê±55·?, Michael Post <[email protected]: On 10 Mai，14：28，Michael发布< michael.p ... @ purematic.dewrote：你好成员， ..... 是outp和inp与界面沟通的最快方式，或者其他功能更快？感谢您的帮助。 Michael On 10 Mai, 14:28, Michael Post <[email protected]:Hello members,.....is outp and inp the fastest way to communicate with the interface, orother functions are faster?Thanks for your help.Michael 我认为inp（）和outp（）函数是用C语言访问界面的最快方法。否则，您可以使用汇编语言访问接口的。抱歉，因为我忘记了关于UART接口的详细信息，所以无法给你更多帮助。但我认为由C 编写的程序可以通过PC上的COMM端口以超过921600bps的速率发送数据。所以，我想可能你应该检查是否接收器返回接听信号。可能你需要示波器或逻辑分析仪来支持你调试这个程序。 I think the inp() and outp() function is the fastest way to access theinterface in C language. Else you can use assembly language to accessthe interface. Sorry for can''t give you more help because I forgot thedetail about the UART interface. But I think a program written by Ccan send data through COMM port in PC at a rate more than 921600bps.So, I think may be you should check whether the receiver return theanswer signal. May be you need a oscilloscope or a logic analyser tohelp you debug this program. 在文章< 11 * *********************@p77g2000hsh.googlegroups .com> ;, Michael Post< mi ******** **@purematic.dewrote： In article <11**********************@p77g2000hsh.googlegroups .com>,Michael Post <mi**********@purematic.dewrote: >我有一个（时间 - （？）） - 与ms的串行通信问题 - dos 6.2和带有rs485适配器的rs232接口位于接口后面。 >i have a (time-(?))-problem with the serial-communication with an ms-dos 6.2 and the rs232-interface with an rs485-adapter behind theinterface. 标准C语言只包含一个fopen（）函数;如果fopen（）不足以打开设备正确的通信参数，那么你需要调用系统 - 超出C范围的特定库。用另一种方式表达：你所要求的不能用标准C中的，以及你需要在一个特定于新闻组的新闻组中询问你的操作系统。 - 有什么可以说的，请参阅，这是新的？它已经过时了，这已经是我们面前的了。 - 传道书 The standard C language only includes an fopen() function; if fopen()is not sufficient to open the device conditioned to the rightcommunication parameters, then you will need to call upon system-specific libraries that are beyond the scope of C. To phrase this another way: what you have asked for cannot be donein standard C, and you need to ask in a newsgroup specific toyour OS.--Is there any thing whereof it may be said, See, this is new? It hathbeen already of old time, which was before us. -- Ecclesiastes 这篇关于函数inp / outp的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！