1、請輸入調試下述串口程序：程序通過開發板串口(ttySAC1)每間一秒鐘向外發送字符串請輸入調試下述串口程序：程序通過開發板串口(ttySAC1)每間一秒鐘向外發送字符串 /*標準輸入輸出定義 /*標準函數庫定義 /*Unix 標準函數定義 .h /*文件控制定義 /*PPSIX 終端控制定義#defineCOM_FILE/dev/ttySAC1 #define MAXDATASIZE 128argc, char ;=if ( f(CantOpenSerialifFALSE) prf(SetParityErrorn); if(nread=,buff,strlen(buff)0) elseretu

2、rn0;開發板2121#ifndef SER_H #define SER_HFALSE-TRUE FIFO_NAME /*brief*param fd*param speed*return return0;開發板2121#ifndef SER_H #define SER_HFALSE-TRUE FIFO_NAME /*brief*param fd*param speed*return name_arr = 115200, 38400, 19200, 9600, 4800, 2400, 1200;void termios Opt; tr(fd,&Opt);for ( i= 0; i sizeof

3、(speed_arr) / if (speed = tcflush(fd, TCIOFLUSH); cfsetispeed(&Opt,speed_arri); cfsetospeed(&Opt,us=tr(fd,TCSANOW,); if us != trfd打開的串口文件句柄78*取值為 1 或者2*paritystruct termios if( tr( fd,&options) != trfd打開的串口文件句柄78*取值為 1 或者2*paritystruct termios if( tr( fd,&options) != options.c_cflag &= switch (datab

4、its) /*設置數據位數case 7: options.c_cflag|=CS7; case 8: options.c_cflag|=CS8; f(stderr,Unsupporteddatareturn switch case case options.c_cflag &=PARENB;/*ClearK; /* Enable options.c_iflag&= case checking|= (PARODD| PARENB);/*驗|=K; /* Disnable parity case case options.c_cflag |=PARENB;/*EnableparityPARODD;

5、 /* 轉換為偶效驗options.c_cflagIK; /* Disnable case case s: /*as no parity*/ options.c_cflag&=options.c_cflag&=CST ;|=K; /* Disnable parity case case options.c_cflag |=PARENB;/*EnableparityPARODD; /* 轉換為偶效驗options.c_cflagIK; /* Disnable case case s: /*as no parity*/ options.c_cflag&=options.c_cflag&=CST ;

6、return /* 設置停止位switchcase options.c_cflag &= CSTcase options.c_cflag|=CST ;return /*Setinputparityoptionif (parity != n) options.c_iflag |= Ioptions.c_ccVTIME = 0; / 15 options.c_ccVMIN =/raw /*options.c_lflag options.c_oflag /*Updatetheoptionstif tr(fd,TCSANOW,&options) != return (FALSE);return OpenDev(char return OpenDev(char fd=