芯片解密GPS北斗定位模块相关STM32开发
芯片解密stm32单片机源程序如下:
- #include "sys.h"
- #include "delay.h"
- #include "usart.h"
- #include "led.h"
- #include "key.h"
- #include "sdram.h"
- #include "lcd.h"
- #include "usmart.h"
- #include "gps.h"
- /************************************************
- ALIENTEK 阿波罗STM32F429开发板扩展实验16
- ATK-S1216F8 GPS/北斗模块测试实验-HAL库函数版
- ************************************************/
- 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:%.5f %1c ",tp/=100000,gpsx.ewhemi); //得到经度字符串
- LCD_ShowString(30,120,200,16,16,dtbuf);
- tp=gpsx.latitude;
- sprintf((char *)dtbuf,"Latitude:%.5f %1c ",tp/=100000,gpsx.nshemi); //得到纬度字符串
- LCD_ShowString(30,140,200,16,16,dtbuf);
- tp=gpsx.altitude;
- sprintf((char *)dtbuf,"Altitude:%.1fm ",tp/=10); //得到高度字符串
- LCD_ShowString(30,160,200,16,16,dtbuf);
- tp=gpsx.speed;
- sprintf((char *)dtbuf,"Speed:%.3fkm/h ",tp/=1000); //得到速度字符串
- LCD_ShowString(30,180,200,16,16,dtbuf);
- if(gpsx.fixmode<=3) //定位状态
- {
- sprintf((char *)dtbuf,"Fix Mode:%s",fixmode_tbl[gpsx.fixmode]);
- LCD_ShowString(30,200,200,16,16,dtbuf);
- }
- sprintf((char *)dtbuf,"GPS+BD Valid satellite:%02d",gpsx.posslnum); //用于定位的GPS卫星数
- LCD_ShowString(30,220,200,16,16,dtbuf);
- sprintf((char *)dtbuf,"GPS Visible satellite:%02d",gpsx.svnum%100); //可见GPS卫星数
- LCD_ShowString(30,240,200,16,16,dtbuf);
-
- sprintf((char *)dtbuf,"BD Visible satellite:%02d",gpsx.beidou_svnum%100); //可见北斗卫星数
- LCD_ShowString(30,260,200,16,16,dtbuf);
-
- sprintf((char *)dtbuf,"UTC Date:%04d/%02d/%02d ",gpsx.utc.year,gpsx.utc.month,gpsx.utc.date); //显示UTC日期
- LCD_ShowString(30,280,200,16,16,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(30,300,200,16,16,dtbuf);
- }
- int main(void)
- {
- u16 i,rxlen;
- u16 lenx;
- u8 key=0XFF;
- u8 upload=0;
- Stm32_Clock_Init(360,25,2,8); //设置时钟,180Mhz
- HAL_Init(); //初始化HAL库
- delay_init(180); //初始化延时函数
- uart_init(115200); //初始化USART1
- usart3_init(38400); //初始化串口3波特率为38400
- SDRAM_Init(); //初始化SDRAM
- LCD_Init(); //LCD初始化
- LED_Init(); //初始化LED
- KEY_Init(); //初始化按键
- usmart_dev.init(90); //初始化usmart
- POINT_COLOR=RED;
- LCD_ShowString(30,20,200,16,16,"Apollo STM32F4/F7 ^_^");
- LCD_ShowString(30,40,200,16,16,"S1216F8-BD 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(SkyTra_Cfg_Rate(5)!=0) //设置定位信息更新速度为5Hz,顺便判断GPS模块是否在位.
- {
- LCD_ShowString(30,120,200,16,16,"SkyTraF8-BD Setting...");
- do
- {
- usart3_init(9600); //初始化串口3波特率为9600
- SkyTra_Cfg_Prt(3); //重新设置模块的波特率为38400
- usart3_init(38400); //初始化串口3波特率为38400
- key=SkyTra_Cfg_Tp(100000); //脉冲宽度为100ms
- }while(SkyTra_Cfg_Rate(5)!=0&&key!=0);//配置SkyTraF8-BD的更新速率为5Hz
- LCD_ShowString(30,120,200,16,16,"SkyTraF8-BD 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<rxlen;i++)USART1_TX_BUF[i]=USART3_RX_BUF[i];
- USART3_RX_STA=0; //启动下一次接收
- USART1_TX_BUF[i]=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
- if(upload)printf("\r\n%s\r\n",USART1_TX_BUF);//发送接收到的数据到串口1
- }
芯片解密
