GPS.rar_gps msp430_msp430 G_msp430 gps_定位_经纬

#include "gps.h" /************************************************* * 程序名称：NEMA解码程序 FOR MSP430 * 程序设计：岳琨 * CPU ：MSPF247T * XTAL ：32.768KHz 波特率9600 * 版本 ：V1.00 日期 2008-9-2 * 串口测试程序指令： * $GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M, , , ,0000*18 * $ **************************************************/ /******************************************************* * * GPS串口解码程序 * *******************************************************/ #pragma vector=USCIAB0RX_VECTOR __interrupt void USCI0RX_ISR(void) { //_DINT(); unsigned char tmp; tmp = UCA0RXBUF; //将SBUF换成缓冲寄存器 switch(tmp) { case '$': CmdType = 0x00; //命令类型清空 ReceiveMode = 0x01; //接收命令模式 ByteCounter = 0x00; //接收位数清空 SegCounter = 0x00; break; case ',': SegCounter++; ByteCounter = 0x00; break; default: if(ReceiveMode == 0x01) { //命令种类判断 if(ByteCounter == 3) { Cmd = tmp; //存储协议类型，G-GPGGA；S-GPGSV；M-GPRMC } else if(ByteCounter > 3) //判断协议头第四位 { if(Cmd == 'G') //GPGGA { CmdType = 0x01; ReceiveMode = 0x02; //SegCounter = 0x00; ByteCounter = 0x00; } else if(Cmd == 'S' & tmp == 'V') //GPGSV { if(Cmd) CmdType = 0x02; ReceiveMode = 0x02; //SegCounter = 0x00; ByteCounter = 0x00; } else if(Cmd == 'M') //GPRMC { CmdType = 0x03; ReceiveMode = 0x02; //SegCounter = 0x00; ByteCounter = 0x00; } } } else if(ReceiveMode == 0x02) { //接收数据处理 switch(CmdType) { case 1: //类型1，数据接收——GPGGA switch(SegCounter) { case 2: //纬度处理 if(ByteCounter < 9) { Latitude[ByteCounter] = tmp; } break; case 3: //纬度方向处理 if(ByteCounter < 1) { LatAngle = tmp; } break; case 4://经度处理 if(ByteCounter < 10) { Longitude[ByteCounter] = tmp; } break; case 5: //经度方向处理 if(ByteCounter <1) { LongAngle = tmp; } break; case 6://定位判断 if(ByteCounter <1) { PosStatus = tmp; } break; case 7://定位使用卫星数 if(ByteCounter <2) { UseSat[ByteCounter] = tmp; } break; case 9://高度处理 if(ByteCounter <6) { GPSAltitude[ByteCounter] = tmp; } break; case 10: ReceiveMode = 0x00; BufFull = 0x01; break; } break; case 2: //类型2，数据接收——GPGSV switch(SegCounter) { case 3: if(ByteCounter < 2) { TotalSat[ByteCounter] = tmp; } break; case 4: ReceiveMode = 0x00; BufFull = 0x02; break; } break; case 3: //类型3，数据接收——GPRMC if(SegCounter > 9) { ReceiveMode = 0x00; BufFull = 0x03; } switch(SegCounter) { case 1: //时间处理 if(ByteCounter < 6) { UTCTime[ByteCounter] = tmp; } break; case 7: //速度处理 if(ByteCounter < 5) { Speed[ByteCounter] = tmp; } break; case 8: //方位角 if(ByteCounter <5) { Angle[ByteCounter] = tmp; } break; case 9: if(ByteCounter < 6) { UTCDate[ByteCounter] = tmp; } break; } break; } } ByteCounter++; //接收位加1 break; } // _EINT(); } /************************************************************ * Fuction: 串口初始化程序,波特率9600，用于GPS�