progvault

@AlexApps99 could you post the full code that exhibits your issue?

Looks like the issue is indeed with the mutex in stdio_usb_in_chars() in stdio_usb.c. Does seem kind of odd to put a character available callback in the SDK and not be...

@igorbezsmertnyi - the TX FIFO is probably empty and the slave is stalling the bus by pulling SCL low (i.e. stretching the clock). Look at your code and make sure...

Seems there's a bug with how the mutex works for stdio_usb. I added a comment to the discussion in https://github.com/raspberrypi/pico-sdk/issues/1603#issuecomment-1937414069. Edit: This does look like a bug. I investigated a...

The VS Code configuration (i.e. .vscode folder) was supplied with the SDK and installed by pico-setup-windows-x64-standalone.exe. A zip file named pico-examples.zip contained the .vscode folder. I should note that there...

I reinstalled. Looks like the SDK installer does the same thing I did manually which was unzip pico-examples.zip to the documents directory. I'm using the .vscode folder that was supplied...

I've come to the conclusion that CMake is a mess. Sure it works however debugging issues like this is a nightmare. There is so much cache and crap left behind...