ch32v003fun

My tests for the CH32V003 with gcc-riscv64. It's 10-cent part with a RV32EC core that runs at 48MHz, has 16kB of flash and 2kB of RAM. It also comes in SOP-8, QFN-20 and SOIC packages.

Still very much a wip, but pretty close to a sort of dev environment for the ch32v003 in Linux / WSL.

This contains:

1. EVT Folder for running demos from the ch32v003 EVT.
2. Barebones. For compiling without the EVT.

System Prep

On WSL or Debian based OSes apt-get install build-essential libnewlib-dev gcc-riscv64-unknown-elf

Running

cd barebones
make

Use the WCH-LinkUtility to flash the built hex file.

For using EVT demos, check out the EVT folder.

WCH-Link

It enumerates as 2 interfaces. 0. the programming interface. I can't get anything except the propreitary interface to work.

1. the usb serial port built in.

If you want to mess with the programming code in Windows, you will have to install WinUSB to the interface 0. Then you can uninstall it in Device Manager under USB Devices.

miniwchlink

I wrote some libusb copies of some of the basic functionality from WCH-Link, so you can use the little programmer dongle they give you to program the ch32v003.

Currently, it ignores all the respone codes, except when querying the chip. But it's rather surprising how featured I could get in about 5 hours.

Anyone who wants to write a good/nice utility should probably look at the code in this folder.