使用STM32单片机，借助TFT触摸屏制作的跑表程序，目前用到TCA6424A，希望能够在该站上下载资料学习，谢谢。(Using STM32 MCU and TFT touch screen, TCA6424A is currently used in the running meter program. I hope I can download and learn the data at this station. Thank you.)