MSP430单片机控制GPS显示相关定位信息

#include "includes.h" unsigned char UTCTime[6]; //UTC时间 unsigned char Latitude[9]; //纬度 unsigned char Longitude[10]; //经度 unsigned char LatAngle; //纬度方向 unsigned char LongAngle; //经度方向 unsigned char GPS_warn; //定位警告 unsigned char GPS_quality; //定位质量 unsigned char UseSat[2]; //使用卫星 unsigned char PosStatus; //定位状态 unsigned char Speed[5]; //速度 单位:节 unsigned char UTCDate[6]; //UTC日期 unsigned char GPSAltitude[8]; //海拔高度 unsigned char TotalSat[2]; //总共卫星数 unsigned char Angle[5]; //方位角 //unsigned char DisplayCounter; //刷新计数器 unsigned char SegCounter; //逗号计数器 unsigned char ByteCounter; //字符计数器 unsigned char CmdType; //命令类型 unsigned char ReceiveMode; //接受命令模式 0：结束模式 1：命令模式 2：数据模式 unsigned char BufFull; //整句接收 1：G-GPGGA整句接受完成，2：S-GPGSV整句接受完成 3：M-GPRMC整句接受完成 unsigned char Cmd; //GPS协议命令类型，G-GPGGA；S-GPGSV；M-GPRMC unsigned char CurrentDay; //当前时区日 unsigned char CurrentMonth; //当前时区月 unsigned char CurrentYear; //当前时区年 unsigned char CurrentTimeZone = 8; //设置当前时区 unsigned char CurrentTime; //设置当前时间 ///////////////计算并返回2月的天数 unsigned char FebDays(unsigned char year) //闰年返回29,平年返回28 { year+=2000; if(year%4==0) { if(year%100==0) { if(year%400==0) return 29; else return 28; } else return 29; } else return 28; } void AdjustDate() //日期校正 { unsigned char day;//读取的GPS日寄存器 unsigned char month;//读取的GPS月寄存器 unsigned char year;//读取的GPS年寄存器 unsigned char hour; //设置当前小时 CurrentTime = (UTCTime[0] - 48)*10 + (UTCTime[1] - 48); CurrentTime = (CurrentTime + CurrentTimeZone)%24; //CurrentTime = 8; day = ((UTCDate[0] - 48)*10 + (UTCDate[1] - 48)); month = ((UTCDate[2] - 48)*10 + (UTCDate[3] - 48)); year = ((UTCDate[4] - 48)*10 + (UTCDate[5] - 48)); hour = ((UTCTime[0] - 48)*10 + (UTCTime[1] - 48)); if((hour + CurrentTimeZone) >24) { switch(month) { case 1: case 3: case 5: case 7: case 8: case 10: case 12: if(day < 31) { CurrentDay = day + 1; CurrentMonth = month; CurrentYear = year; } else { CurrentMonth = month; CurrentYear = year; if(month < 12) { CurrentMonth = month + 1; } else { CurrentDay = 1; CurrentMonth = 1; CurrentYear = year + 1; } } break; case 4: case 6: case 9: case 11: if(day < 30) { CurrentDay = day + 1; CurrentMonth = month; CurrentYear = year; } else { CurrentDay = 1; CurrentMonth = month +1; CurrentYear = year; } break; case 2: if(day < FebDays(year)) { CurrentDay = day + 1; CurrentMonth = month; CurrentYear = year; } else { CurrentDay = 1; CurrentMonth = month + 1; CurrentYear = year; } break; default: break; } } else { CurrentYear = year; CurrentMonth = month; CurrentDay = day; } } #pragma vector=USART0RX_VECTOR __interrupt void usart0_rx (void) { unsigned char tmp; tmp = RXBUF0; //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