Using Petal.Seed.Printline on Petal

StaffanMelin · September 12, 2021, 9:04am

This is how I use it on the Seed:

Also see this issue:

github.com/electro-smith/libDaisy

USB Logger can fail/cause freezing if interrupts start too soon after StartLog

opened 06:44PM - 13 May 21 UTC

closed 12:30AM - 16 Dec 21 UTC

stephenhensley

bug

Seems like this is probably a callback function from the USB getting interrupted… by the audio IRQs which are higher priority. Specifically I'm guessing the descriptor functions are getting interrupted, but I haven't stepped through everything myself yet. A workaround for now is to use a delay (500ms seems acceptable) between `StartLog` and any subsequent Init or Start functions that would cause periodic interrupts. Longterm we should add `ScopedIrqBlockers` to the functions that can cause issues when interrupted.