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调用api做的一个图片缓存页面,只是方便临时的、快速的图片预览

STM32F103C6X-LoRa

通过STM32F103C6x单片机与A39C-T400A22S1a进行通信,实现LoRa传输

A39C-T400A22S1a是泽耀科技研发的,一款410~525MHz,158mW,具有高稳定性,工业级的无线串口模块。LORA扩频调制,实测传输距离最远可达5000米。该模块具备数据广播、数据监听、定点传输、主从模式、自动中继、定点唤醒等传输方式,支持超低功耗,多样化的功能和极高的稳定性,可广泛应用于各种环境下,轻松实现低频无线数据传输。

该项目则是实现简单的定点传输

STM32F103C6X-ATGM336H

通过STM32F103C6x单片机读取ATGM336H采集到的经纬度信息

MCU的串口1接收到ATGM336H输出的GLL格式的信息后,遇到结束符标志\n\r,则终止本次的接收,然后对接收到的数据解析拆分得经纬度和UTC时间

需要注意:MCU通过串口烧录完程序后,再将A10接到ATGM336H的RXD引脚

GPS配置参考

说明

  1. 打包或归档项目时点击"keilkilll.bat"文件,可以删除所有日志文件、私密文件,提升安全性,还能降低文件大小
  2. 由于C6x系列是小容量型(Low Density,Flash容量不大于32Kb)F103产品,所以移植使其支持C8x系列单片机时,需要更换启动文件。当然,不修改也是可以跑起来的

startup_stm32f10x_ld.s 对应小容量型(Low Density,Flash容量不大于32Kb)F103产品的启动文件;
startup_stm32f10x_md.s 对应中容量型(Medium Density,Flash容量介于64Kb和128Kb)F103产品的启动文件;
startup_stm32f10x_hd.s 对应大容量型(High Density,Flash容量不小于256Kb)F103产品的启动文件。

使用步骤

1、使用工具“GNSSToolKit_Lite”对GPS进行配置,比如波特率、BD/GPS双模模式、只开启GLL等,见目录下的 "GPS配置参考.jpg"

2、重新编译并运行;

3、确认MCU的A10单独连接到GPS模块的TXD引脚,GPS模块的VCC接5.0V;

4、在调试窗口观察打印信息,如果与实际一致,运行正常。

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