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wagiminator / CH32X035-USB-PD-Tester

USB Power Delivery Testing Device and Variable Power Supply
https://oshwlab.com/wagiminator/ch32x035-usb-pd-tester
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PD 3.1 EPR support #1

Open drom opened 8 months ago

drom commented 8 months ago

Great project! Do you plan supporting USB PD 3.1 EPR profiles {28, 36, 48}V ? There are several 140W = 28V * 5A power bricks on the market right now to test.

wagiminator commented 8 months ago

Thank you. I don't plan to do this at the moment. The hardware would have to be adapted so that it can tolerate the higher voltages (in particular, the cheap LDO should be replaced by a buck converter). When I have the appropriate power bricks at hand at some point, I'll definitely make a project out of them.

andelf commented 8 months ago

I made something similar. :)

https://github.com/ch32-rs/ch32x0-hal/issues/1

wagiminator commented 8 months ago

Coooooool! Now I know why I didn't get hardware-I2C to work....

andelf commented 8 months ago

Yes. A sad story. It is documented in the datasheet, with only a single line of description.😤

wagiminator commented 8 months ago

Ah, I just found the sentence in the datasheet. If I hadn't read it over, I could have saved myself frustrating hours with the logic analyzer.