stm32 arm单片机基于KEIL编译环境，开发的一款高精度ADC采样程序代码，采样电压0--100v和0--20v两路，最大误差精度0.08v。通过2.8寸lcd显示在液晶触摸屏幕上-STM32 arm microcontroller based KEIL compiler environment, the development of a high-precision ADC sample code, the sampled voltage- 100v and 0- 20V two-way