rgwan / librech551

Open-source CH55x flashing tool, SDK....
146 stars 36 forks source link

LibreCH551

An open-source command line flasher program and SDK library for WCH(Nanjing QinHeng Corp.)'s CH55x family. Our Wiki contains a lot of useful tips, it's worth to check out!

The CH55x is a series of 8051 microcontroller with dedicated USB peripheral. CH553/CH554 can be programmed as a USB host. The cheapest one, CH551 only costs 1.5 CNY in retail. It is the ultimate and ideal solution for many low-end USB applications.

Up to now, we have tested out CH551 and CH554, all functions work fine except option byte.

If someone want to help me, please start, fork and support more chips, Thanks!

TODO

Implement chip programming via UART for devices workign on USB Host mode. (It is very simple to realize: just add serial port interface to the program and 0x619e, accumulate checksum in packet tail).

Implement new CH55x ISP protocol (for bootloader version > 2.30), for now we don't have any chip shipped with the new bootloader: WCH's FAE said that they will release chips with new bootloader after Apr.2018.

Contributions are always welcome

Command Line Parameters

For Linux Users

For Windows Users

Driver Installation

  1. Connect your CH55x to one of USB ports on your PC, make sure the MCU enters ISP mode.
  2. Launch zadig (included in win_tools.zip), open Options menu and click List All Devices, you should be able to find your CH55x (Usually names USB Module), optionally you can change its name by check the Edit box.
  3. Double check that the USB ID is correct, USB ID is VID plus PID, for CH554, the USB ID is 4348 55E0.
  4. Select libusb-win32 and click Install Driver, quit Zadig after driver installation.
    • Note: due to unknown reason, sometimes the libusbK driver won't work on some machine with very new USB 3.1 controller. If your PC can not recognize the USB ISP device, try winusb or libusb-win32 instead.

Build Executables

License

GPLv3

Author(s)

Zhiyuan Wan h@iloli.bid

Rikka0w0