stm32 GPS模块实验ATK-NEO-6M

甘璐妲

2018-7-4 05:39:32 3761 STM32 gps

单片机源程序如下:

#include "sys.h"
#include "delay.h"
#include "usart.h"
#include "led.h"
#include "lcd.h"
#include "usmart.h"
#include "usart3.h"
#include "key.h"
#include "string.h"
#include "gps.h"
#include "ff.h"
#include "exfuns.h"
//ALIENTEK 探索者STM32F407开发板扩展实验2
//ATK-NEO-6M GPS模块测试实验 -库函数版本
u8 USART1_TX_BUF[USART3_MAX_RECV_LEN]; //串口1,发送缓存区
nmea_msg gpsx; //GPS信息
__align(4) u8 dtbuf[50]; //打印缓存器
const u8*fixmode_tbl[4]={"Fail","Fail"," 2D "," 3D "}; //fix mode字符串
//显示GPS定位信息
void Gps_Msg_Show(void)
{
float tp;
POINT_COLOR=BLUE;
tp=gpsx.longitude;
sprintf((char *)dtbuf,"Longitude:%.7f %1c ",tp/=100000,gpsx.ewhemi); //得到经度字符串
LCD_ShowString(30,130,200,16,16,dtbuf);
tp=gpsx.latitude;
sprintf((char *)dtbuf,"Latitude:%.7f %1c ",tp/=100000,gpsx.nshemi); //得到纬度字符串
LCD_ShowString(30,150,200,16,16,dtbuf);
tp=gpsx.altitude;
sprintf((char *)dtbuf,"Altitude:%.1fm ",tp/=10); //得到高度字符串
LCD_ShowString(30,170,200,16,16,dtbuf);
tp=gpsx.speed;
sprintf((char *)dtbuf,"Speed:%.3fkm/h ",tp/=1000); //得到速度字符串
LCD_ShowString(30,190,200,16,16,dtbuf);
if(gpsx.fixmode<=3) //定位状态
{
sprintf((char *)dtbuf,"Fix Mode:%s",fixmode_tbl[gpsx.fixmode]);
LCD_ShowString(30,210,200,16,16,dtbuf);
}
sprintf((char *)dtbuf,"Valid satellite:%02d",gpsx.posslnum); //用于定位的卫星数
LCD_ShowString(30,230,200,16,16,dtbuf);
sprintf((char *)dtbuf,"Visible satellite:%02d",gpsx.svnum%100); //可见卫星数
LCD_ShowString(30,250,200,16,16,dtbuf);
sprintf((char *)dtbuf,"UTC Date:%04d/%02d/%02d ",gpsx.utc.year,gpsx.utc.month,gpsx.utc.date); //显示UTC日期
//printf("year2:%drn",gpsx.utc.year);
LCD_ShowString(30,270,200,16,16,dtbuf);
sprintf((char *)dtbuf,"UTC Time:%02d:%02d:%02d ",gpsx.utc.hour,gpsx.utc.min,gpsx.utc.sec); //显示UTC时间
LCD_ShowString(30,290,200,16,16,dtbuf);
}
int main(void)
{
u8 record=0;
u16 i,rxlen,j=0;
u16 r=0;
u16 lenx;
u8 key=0XFF;
u8 upload=0;
u8 temp[24];
u32 total,free;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置系统中断优先级分组2
delay_init(168); //初始化延时函数
uart_init(115200); //初始化串口波特率为115200
usart3_init(9600); //初始化串口3波特率为9600
usmart_dev.init(84); //初始化USMART
LED_Init(); //初始化LED
KEY_Init(); //初始化按键
LCD_Init(); //初始化LCD
usmart_dev.init(72); //初始化USMART
exfuns_init(); //为fatfs相关变量申请内存
f_mount(fs[0],"0:",1); //挂载SD卡
while(SD_Init()) //初始化SD卡失败
{
LCD_ShowString(60,150,240,16,16,"SD Init Error!");
delay_ms(200);
}
//如果之前有记录，重新上电先算出之前记录的条数，非常重要
f_open(file, "gps_log.gtxt", FA_READ );
r=(*file).fsize/64;
f_close(file); //关闭文件
POINT_COLOR=RED;
LCD_ShowString(30,20,200,16,16,"ALIENTEK STM32F4 ^_^");
LCD_ShowString(30,40,200,16,16,"NE0-6M GPS TEST");
LCD_ShowString(30,60,200,16,16,"ATOM@ALIENTEK");
LCD_ShowString(30,80,200,16,16,"KEY0:Upload NMEA Data SW");
LCD_ShowString(30,100,200,16,16,"NMEA Data Upload:OFF");
if(Ublox_Cfg_Rate(1000,1)!=0) //设置定位信息更新速度为1000ms,顺便判断GPS模块是否在位.
{
LCD_ShowString(30,120,200,16,16,"NEO-6M Setting...");
while((Ublox_Cfg_Rate(1000,1)!=0)&&key) //持续判断,直到可以检查到NEO-6M,且数据保存成功
{
usart3_init(9600); //初始化串口3波特率为9600(EEPROM没有保存数据的时候,波特率为9600.)
Ublox_Cfg_Prt(38400); //重新设置模块的波特率为38400
Ublox_Cfg_Tp(1000000,100000,1); //设置PPS为1秒钟输出1次,脉冲宽度为100ms
key=Ublox_Cfg_Cfg_Save(); //保存配置
}
LCD_ShowString(30,120,200,16,16,"NEO-6M Set Done!!");
delay_ms(500);
LCD_Fill(30,120,30+200,120+16,WHITE);//清除显示
}
while(1)
{
delay_ms(1);
if(USART3_RX_STA&0X8000) //接收到一次数据了
{
rxlen=USART3_RX_STA&0X7FFF; //得到数据长度
for(i=0;i=USART3_RX_BUF;
USART3_RX_STA=0; //启动下一次接收
USART1_TX_BUF=0; //自动添加结束符
GPS_Analysis(&gpsx,(u8*)USART1_TX_BUF);//分析字符串
Gps_Msg_Show(); //显示信息
//SD卡信息显示
exf_getfree("0",&total,&free); //得到SD卡总容量和剩余容量
LCD_ShowString(30, 330,200,16,16,"SD Card:");
sprintf(temp,"%d/%dMB",free>>10,total>>10);
LCD_ShowString(30+80,330,200,16,16,temp);
if(upload)printf("rn%srn",USART1_TX_BUF);//发送接收到的数据到串口1
}
if(j>=1000) //大约1s记录一次
{
j=0;
if(record)
{
r++;
f_lseek(file,(*file).fsize); //移动指针
f_printf(file,"记录%03d 自动 ",r); //写序号
sprintf(temp,"%04d-%02d-%02d ",gpsx.utc.year,gpsx.utc.month,gpsx.utc.date); //日期
f_write(file,temp,11,&br); //日期
sprintf(temp,"%02d:%02d:%02d ",gpsx.utc.hour,gpsx.utc.min,gpsx.utc.sec); //时间
f_write(file,temp,9,&br); //时间
sprintf(temp,"(%03.7f,",gpsx.longitude/100000+gpsx.longitude%100000/100000.0); //得到经度字符串
f_write(file,temp,13,&br); //经度
sprintf(temp,"%02.7f)",gpsx.latitude/100000+gpsx.latitude%100000/100000.0); //得到纬度字符串
f_write(file,temp,12,&br); //纬度
f_printf(file,"rn"); //回车换行
}
}
j++;
key=KEY_Scan(0);
if(key==KEY0_PRES)
{
upload=!upload;
POINT_COLOR=RED;
if(upload)LCD_ShowString(30,100,200,16,16,"NMEA Data Upload:ON ");
else LCD_ShowString(30,100,200,16,16,"NMEA Data Upload:OFF");
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