可以实现PS2键盘 定时中断 UART串口通信-PS2 keyboard can be achieved timer interrupt UART serial communication

STM32软件开发，uart驱动，i2c驱动，spi驱动，ad驱动，rx8025驱动，rtc驱动，wdg驱动，ucos-iii移植。(STM32 software development, UART driver, I2C driver, SPI driver, ad driver, rx8025 driver, RTC driver, WDG driver, ucos-iii transplantation.)