MSP430+GPS

只看该作者 · 2013-8-18 18:55

这一个MSP430单片机程序。从串口接收GPS数据，经过单片机处理后，得到有用数据，将这些有用数据通过串口0发给上位机。我是430单片机初学者，本程序肯定又去多不合理的地方，请高手指点。程序代码如下：
#include <msp430.h>
#include "UART0.h"
#include "UART1.h"

unsigned char GPS[500] = {0},TIME[8] = {0},LAT[11] = {0},
            LON[12] = {0},QUA[1] = {0},STA[1] = {0},ALT[8] = {0},
            AVL_GPS[46] = {0},Hour = 0,HH = 0,HL = 0,FLAG = 0;
unsigned int  g = 0,p = 0,s = 0;

void main()
{
WDTCTL = WDTPW + WDTHOLD;
InitUART0();
InitUART1();
while (1)
{
      for(g = 0; g <500; g++)
      {
         GPS[g] = Get1Char1();
      }

      for(g = 0; g < 500; g++)
      {
         if((g < 442) && (GPS[g] == 'G') && (GPS[g + 1] == 'A')&& (GPS[g + 18] == '.'))
         {
            FLAG = 1;
            /*****************当前时间******************/
            HH = GPS[g + 3];
            HL = GPS[g + 4];
            Hour = (HH - 0x30) * 10 + (HL - 0x30) + 0x08;
            Hour %= 24;
            TIME[0] = Hour/10 + 0x30;
            TIME[1] = Hour%10 + 0x30;
            TIME[2] = ':';
            TIME[3] = GPS[g + 5];
            TIME[4] = GPS[g + 6];
            TIME[5] = ':';
            TIME[6] = GPS[g + 7];
            TIME[7] = GPS[g + 8];
            /*****************当前纬度*****************/
            for(s = 0;s < 9;s++)
            {
                  LAT[s] = GPS[g + s + 14];
            }
            LAT[9] = 0x20;
            LAT[10] = GPS[g + 24];
            /****************当前经度*****************/
            for(s = 0;s < 10;s++)
            {
                  LON[s] = GPS[g + s + 26];
            }
            LON[10] = 0x20;
            LON[11] = GPS[g + 37];
            /****************定位质量指示************/
            QUA[0] = GPS[g + 39];
            /****************使用卫星数量************/
            STA[0] = GPS[g + 41];
            /**********天线离海平面的高度************/
            for(s = 0;s < 6;s++)
            {
                  ALT[s] = GPS[g + s + 48];
            }
            ALT[6] = 0x20;
            ALT[7] = GPS[g + 55];
            /****将获得的有效值存放在AVL_GPS[]中****/
            for(p = 0;p < 8;p++)
            {
                  AVL_GPS[p] = TIME[p];
            }
            AVL_GPS[8] = ',';
            for(p = 9;p < 20;p++)
            {
                  AVL_GPS[p] = LAT[p - 9];
            }
            AVL_GPS[20] = ',';
            for(p = 21;p < 33;p++)
            {
                  AVL_GPS[p] = LON[p - 21];
            }
            AVL_GPS[33] = ',';
            for(p = 34;p < 42;p++)
            {
                  AVL_GPS[p] = ALT[p - 34];
            }
            AVL_GPS[42] = ',';
            AVL_GPS[43] = STA[0];
            AVL_GPS[44] = ',';
            AVL_GPS[45] = QUA[0];
         }
      }

      if(FLAG == 1)
      {
         SendEnter0();
         PutString0("/*****GPS测量成功，开始显示GPS数据*****/");
         SendEnter0();
         SendEnter0();

         PutString0("北京时间： ");
         for(g = 0; g < 8; g++)
         {
            Send1Char0(TIME[g]);
         }
         SendEnter0();

         PutString0("当前纬度： ");
         for(g = 0; g < 11; g++)
         {
            Send1Char0(LAT[g]);
         }
         SendEnter0();

         PutString0("当前经度： ");
         for(g = 0; g < 12; g++)
         {
            Send1Char0(LON[g]);
         }
         SendEnter0();

         PutString0("海拔高度： ");
         for(g = 0; g < 8; g++)
         {
            Send1Char0(ALT[g]);
         }
         SendEnter0();

         PutString0("卫星数量： ");
         Send1Char0(STA[0]);
         SendEnter0();

         PutString0("定位质量： ");
         Send1Char0(QUA[0]);
         SendEnter0();

         PutString0("组合数据： ");
         for(g = 0; g < 46; g++)
         {
            Send1Char0(AVL_GPS[g]);
         }
         SendEnter0();
         SendEnter0();
         PutString0("/*****有效GPS数据显示完毕*****/");
         SendEnter0();
         SendEnter0();
         SendEnter0();
      }
      else
         PutString0("GPS测量失败！");
}
}

MSP430+GPS

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