| 0,0 → 1,91 |
|---|
| |
| /* First version by Bjoern Biesenbach <bjoern@bjoern-b.de> */ |
| #include <string.h> |
| #include <unistd.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <termios.h> |
| #include <stdlib.h> |
| |
| #include "serial.h" |
| #include "main.h" |
| |
| static int fd; // File descriptor for serial port |
| |
| int open_port(char *port) |
| { |
| int fds; /* File descriptor for the port */ |
| |
| fds = open(port, O_RDWR | O_NOCTTY | O_NDELAY); |
| if (fds == -1) |
| { |
| /* |
| * Could not open the port. |
| */ |
| perror("open_port: Unable to open serial port!"); |
| exit(1); |
| } |
| else |
| fcntl(fds, F_SETFL, 0); |
| |
| return (fds); |
| } |
| void AddCRC(unsigned int wieviele) |
| { |
| unsigned int tmpCRC = 0,i; |
| for(i = 0; i < wieviele;i++) |
| { |
| tmpCRC += TxBuffer[i]; |
| } |
| tmpCRC %= 4096; |
| TxBuffer[i++] = '=' + tmpCRC / 64; |
| TxBuffer[i++] = '=' + tmpCRC % 64; |
| TxBuffer[i++] = '\r'; |
| } |
| |
| |
| |
| void sende() |
| { |
| unsigned char tmp_tx; |
| int i=0; |
| while(TxBuffer[i] !='\r' && i<150) |
| { |
| write(fd,&TxBuffer[i],1); |
| i++; |
| } |
| write(fd,"\r",1); |
| } |
| |
| void SendOutData(unsigned char cmd,unsigned char modul, unsigned char *buffer, int len) |
| { |
| unsigned int pt = 0,i; |
| |
| TxBuffer[pt++] = '#'; // Startzeichen |
| TxBuffer[pt++] = modul+'a'; // Adresse (a=0; b=1,...) |
| TxBuffer[pt++] = cmd; // Commando |
| if(len) |
| for(i = 0;i < len; i+=3) |
| { |
| TxBuffer[pt++] = '=' + (buffer[i] >> 2); |
| TxBuffer[pt++] = '=' + (((buffer[i] & 0x03) << 4) | ((buffer[i+1] & 0xf0) >> 4)); |
| TxBuffer[pt++] = '=' + ((unsigned char) ((buffer[i+1] & 0x0f) << 2) | ((buffer[i+2] & 0xc0) >> 6)); |
| TxBuffer[pt++] = '=' + ((unsigned char) buffer[i+2] & 0x3f); |
| } |
| AddCRC(pt); |
| sende(); |
| } |
| |
| void initSerial(char *port) |
| { |
| struct termios options; |
| fd=open_port(port); |
| tcgetattr(fd, &options); |
| cfsetispeed(&options, B57600); |
| cfsetospeed(&options, B57600); |
| options.c_cflag |= (CLOCAL | CREAD); |
| tcsetattr(fd, TCSANOW, &options); |
| fcntl(fd, F_SETFL, FNDELAY); |
| } |
| |
| |