I want to add the grbl driver instance of CH582F

[Cuixudong]

I have used CH582F and think it is a very suitable single chip microcomputer for engraving machine, including 448K fkash and 30K RAM, 4 timers and 6 pwm, 4 serial ports and 2 spi and iIC, BLE, 2USB host and device and built-in dcdc, and especially cheap. Uploading CH583DS1.PDF…

[terjeio]

Start with an existing driver and comment out hardware specific code, then implement serial comms (UART) before continuing with adding other parts of the driver.