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Library is almost done with AVS support

A project log for PicoPD Pro - USB-C PD 3.1 PPS AVS with RP2040

Adding Power Delivery 3.1 (PD3.1) with PPS EPR AVS to our beloved RP2040 chip in Pico footprint.

centylabCentyLab 12/01/2024 at 09:220 Comments

The library basic functionality is almost completed. As you can see we now can switch between 30V in AVS mode to fix voltage profile at 15V and 9V. There is some bug that we will need to walk through like some sequence of transition can cause the system to hang and issue a hard power reset.

AVS profile require constant reminder from the sink for safety purposes. If there is no communication between the sink and source, the source will cut power and reboot at 5V. This is to ensure that if you drop your high voltage device into water, you will only get shock for a second or two. As the main IC fail, the communication will fail, and the power will be cut off.

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