适用于STM32F103的战舰开发板，开发板厂商只提供了基于定时器功能实现的红外接收，前段时间刚好碰到一个项目，红外接收输入对应的IO口上没有定时器的功能的，网上没找到，就自己修改了一个，在开发板上测试可用。(The battleship development board for STM32F103 development board, manufacturers only provide infrared receiver based on the realization of the ti