A free, open mechanism to use the CH-LinkE $4 programming dongle for the CH32V003.
If on Linux, make sure to install the provided udev rules rule to /etc/udev/rules.d/.
This can be done by issuing make install_udev_rules as root. The makefile target will also tell the udev daemon to reload the new rules and re-evaluate them on already attached devices, essentially saving you a reboot/replug.
On Windows, if you need to you can install the WinUSB driver over the WCH interface 1.
The exe here is about 12kB and contains everything except for the libusb driver. In Linux you need libusb-1.0-dev.
Usage: minichlink [args]
single-letter args may be combined, i.e. -3r
multi-part args cannot.
-3 Enable 3.3V
-5 Enable 5V
-t Disable 3.3V
-f Disable 5V
-u Clear all code flash - by power off (also can unbrick)
-b Reboot out of Halt
-e Resume from halt
-a Place into Halt
-D Configure NRST as GPIO
-d Configure NRST as NRST
-s [debug register] [value]
-g [debug register]
-w [binary image to write] [address, decimal or 0x, try0x08000000]
-r [output binary image] [memory address, decimal or 0x, try 0x08000000] [size, decimal or 0x, try 16384]
Note: for memory addresses, you can use 'flash' 'launcher' 'bootloader' 'option' 'ram' and say "ram+0x10" for instance
For filename, you can use - for raw or + for hex.
-T is a terminal. This MUST be the last argument.