/**********************************************************
                                                作者：神秘藏宝室
接线说明：
STM32                                        GPS
VCC                ------>        VCC
GND                ------>        GND
RX1                <------        TXD


STM32                                        USB-TTL模块
GND                ------>        GND
TX1                ------>        RXD
***********************************************************/

#include "stm32f10x.h"
#include "delay.h"
#include "usart.h"
#include "led.h"

//声明
void errorLog(int num);
void parseGpsBuffer(void);
void printGpsBuffer(void);

int main(void)
{        
        delay_init();
        
        NVIC_Configuration();          //设置NVIC中断分组2:2位抢占优先级，2位响应优先级
        uart_init(9600);         //串口初始化为9600
        Init_LEDpin();
        LED1 = 1;
        
        clrStruct();
        
        printf("Welcome to use!\r\n");
        printf("ILoveMcu.taobao.com!\r\n");
        while(1)
        {
                parseGpsBuffer();
                printGpsBuffer();
               
   
        }
}

void errorLog(int num)
{
        
        while (1)
        {
                  printf("ERROR%d\r\n",num);
        }
}

void parseGpsBuffer()
{
        char *subString;
        char *subStringNext;
        char i = 0;
        if (Save_Data.isGetData)
        {
                Save_Data.isGetData = false;
                printf("**************\r\n");
                printf(Save_Data.GPS_Buffer);

               
                for (i = 0 ; i <= 6 ; i++)
                {
                        if (i == 0)
                        {
                                if ((subString = strstr(Save_Data.GPS_Buffer, ",")) == NULL)
                                        errorLog(1);        //解析错误
                        }
                        else
                        {
                                subString++;
                                if ((subStringNext = strstr(subString, ",")) != NULL)
                                {
                                        char usefullBuffer[2];
                                        switch(i)
                                        {
                                                case 1:memcpy(Save_Data.UTCTime, subString, subStringNext - subString);break;        //获取UTC时间
                                                case 2:memcpy(usefullBuffer, subString, subStringNext - subString);break;        //获取UTC时间
                                                case 3:memcpy(Save_Data.latitude, subString, subStringNext - subString);break;        //获取纬度信息
                                                case 4:memcpy(Save_Data.N_S, subString, subStringNext - subString);break;        //获取N/S
                                                case 5:memcpy(Save_Data.longitude, subString, subStringNext - subString);break;        //获取经度信息
                                                case 6:memcpy(Save_Data.E_W, subString, subStringNext - subString);break;        //获取E/W

                                                default:break;
                                        }

                                        subString = subStringNext;
                                        Save_Data.isParseData = true;
                                        if(usefullBuffer[0] == 'A')
                                                Save_Data.isUsefull = true;
                                        else if(usefullBuffer[0] == 'V')
                                                Save_Data.isUsefull = false;

                                }
                                else
                                {
                                        errorLog(2);        //解析错误
                                }
                        }


                }
        }
}

void printGpsBuffer()
{
        if (Save_Data.isParseData)
        {
                Save_Data.isParseData = false;
               
                printf("Save_Data.UTCTime = ");
                printf(Save_Data.UTCTime);
                printf("\r\n");

                if(Save_Data.isUsefull)
                {
                        Save_Data.isUsefull = false;
                        printf("Save_Data.latitude = ");
                        printf(Save_Data.latitude);
                        printf("\r\n");


                        printf("Save_Data.N_S = ");
                        printf(Save_Data.N_S);
                        printf("\r\n");

                        printf("Save_Data.longitude = ");
                        printf(Save_Data.longitude);
                        printf("\r\n");

                        printf("Save_Data.E_W = ");
                        printf(Save_Data.E_W);
                        printf("\r\n");
                }
                else
                {
                        printf("GPS DATA is not usefull!\r\n");
                }
               
        }
}