ARDUINO解析GPS数据，读取出来GPRMC帧数据

测试板子使用ARDUINO MEGA2560

#include <TimerOne.h>

#define GPSSerial Serial1
#define DebugSerial Serial

const unsigned int bufferLength = 600;
char RxBuffer[bufferLength];
unsigned int ii = 0;

char EER_GPS_Buffer[24] = {"$GPRMC,,V,,,,,,,,,,N*7F"};

struct
{
	unsigned char CMD;
	unsigned int LengthA;
	char fixed[20];
	unsigned char id_length;
	char id[20];
	unsigned char LengthB1;
	unsigned char LengthB2;
	char api_key[50];
} login;

struct
{
	unsigned char CMD;
	unsigned char LengthA;
	unsigned char mark;
	unsigned char type;
	unsigned char LengthB1;
	unsigned char LengthB2;
	char streamA[24];
	char id[20];
	char streamB[27];
	char GPS_Buffer[150];
	char streamC[7];
} Save_Data;

void setup(){
	GPSSerial.begin(9600);
	DebugSerial.begin(9600);


	Timer1.initialize(1000);
	Timer1.attachInterrupt(Timer1_handler);

	DebugSerial.println("setup end!");
}

void loop(){
	DebugSerial.println("loop start!");
	getGPSData();
	DebugSerial.println("loop end!");
}

unsigned long  Time_Cont = 0;
void Timer1_handler(void)
{
	Time_Cont++;
}

void getGPSData(){
	char *GPS_BufferHead, *GPS_BufferTail;

	clrRxBuffer();

	Time_Cont = 0;
	while (Time_Cont < 2000)
	{
		readBuffer();

		if ((GPS_BufferHead = strstr(RxBuffer, "$GPRMC,")) != NULL)
		{
			if ((GPS_BufferTail = strstr(GPS_BufferHead, "
")) != NULL)
			{
				if(GPS_BufferTail > GPS_BufferHead)
				{
					memcpy(Save_Data.GPS_Buffer, GPS_BufferHead, GPS_BufferTail - GPS_BufferHead);

					DebugSerial.println("-----1------");
					DebugSerial.println(Save_Data.GPS_Buffer);
					break;
					clrRxBuffer();
				}
			}

		}		
	}
	if(Time_Cont >= 2000)
	{
		memcpy(Save_Data.GPS_Buffer, EER_GPS_Buffer, 24);	//输出错误信息	
	}
	DebugSerial.println("-----2------");
	DebugSerial.println(Save_Data.GPS_Buffer);

	memset(Save_Data.GPS_Buffer, 0, sizeof Save_Data.GPS_Buffer);	//使用后清空数据
	DebugSerial.println("-----3------");
	DebugSerial.println(Save_Data.GPS_Buffer);
	clrRxBuffer();
}

void readBuffer(){
	while (GPSSerial.available())
	{
		RxBuffer[ii++] = GPSSerial.read();
		if (ii == bufferLength)clrRxBuffer();
	}
}

void clrRxBuffer(void)
{
	memset(RxBuffer, 0, bufferLength);		//清空
	ii = 0;
}