CH32X033 support

[ITstreet1]

Hello,
I just looked across this repo and didn't find support for this chip. There are some topics in Issues, and it looks like this chip can be programmed with Arduino. If so, which one should I select, as this one is not in the list?

[maxint-rd]

Hello @ITstreet1 , there is no support in core release 1.0.4 or in the current master branch. But yes, it can be programmed with Arduino and it works quite well for me, using the changes of PR #171.

Since I bought a bunch of them and wanted to use them with the Arduino IDE, I made the X033 (in TSSOP20 package) work for me. Although perhaps not final, I thought my work could be helpful for others and submitted PR #171 . Read the description of that PR to know the specifics. I didn't have time to make a fool-proof installation, so you may need to put some effort in to make it work for you. Please submit your findings as a comment to that PR or in this topic.

What I like about the X033 is that is offers good value for money. The TSSOP20 package has a similar pinout as the CH32V003 but much more memory, allowing it to be used for debugging during development. Just be aware that it is not identical and as you already noted there are some issues that have been submitted already. Good luck!