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lp_tool's Introduction

lp tool多功能工具

  • lptool使用stm32f401cc做主控。利用其所有io,还有复用了几个io!以实现daplink,cdc串口,mscU盘,电流和电压检测,预留spi和iic的下载和调试功能,还有2个io。
  • 开源电路图(禁止用于商业),提供boot loader(bin文件),app地址偏移0xc000.进入bootloader模式按着key1键开机,电脑出现U盘符号,把app文件复制到U盘内即可,app文件需经过lptool.exe软件处理后。

使用说明

  • 注:按键1是模式切换按键

  • lpttol存在多种模式

    1. 不使用usb连接到电脑。(lptool自带电池)
      • 按key1开机后是电流检测模式
    2. 使用usb链接到电脑。
      • 1.daplink模式,可使用cdc串口,屏幕不刷新,保证mcu给dap独占
      • 2.daplink与电流监控共存。
      • 3.pc端监控电流模式。
  • 电流监控使用说明

    1. 引脚图请看文章下面的[对外输入输出io]图片
    2. 如需从工具中获取电源,那么请用短接帽把T1与_3.3V,或T1与_BAT短接。
    3. 外界电源(不要超过18V),T1电源正,GND电源负
    4. 把T1接待测目标电源正,T2接待测目标电源负即可

参数说明

  • stm32f401cc:frequency 84M,flash 256KB,RAM 64KB,ADC 2.4MSPS,USB
  • 电流监控范围:1ua~3A
  • 1ua~3ma 范围内精度1ua
  • 3ma~3A 范围内进度1ma
  • 采集速度1K
  • 外挂128Mbit flash
  • 0.96寸 80*160 tft。(pcb兼容1.14寸tft)
  • 对外供电:电池电压和3.3V(与mcu独立供电),5V(连接usb)

对外输入输出io

  • 正面照片

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