Deep Dive w/Scott: CircuitPython debugging

Adafruit Industries

Join Scott for his last deep dive before more paternity leave. He'll be debugging CircuitPython code. Not sure what. He'll also answer any questions people ask and provide an update on the garbage collection improvements. Visit the Adafruit shop online - http://www.adafruit.com 0:00 Getting started 1:14 Hello everyone - welcome to Deep Dive w/Scott 1:37 Circuit Python - runs on Adafruit Metro RP2350 and many other microprocessors 2:43 Scott's last Deep Dive for the year - then Dad mode and part time 4:00 question about databases on CP - BTree and SQLite 6:43 New 16 inch Framework Laptop ( upgraded from 13 inch ) 9:00 Garbage Collection last week 10:30 Met with MicroPython developers on Tuesday 11:35 Adjusting GC stack speed things up 13:24 working on USB PR commit #10821 16:57 CI scheduler overview 19:07 Shrinking USB static buffers to get the CI to run again 23:10 Merge the "fix" into gc_selective_collect 25:05 test mimxrt10xx port 28:59 looking at linker scripts for sizes 38:00 checking the esp-idf template memory.ld.in 42:00 found "Internal SRAM0 and SRAM1" in datasheet 45:49 back to PR 10293 51:00 investigate second stage boot loader 54:30 linker scripts "digression" 1:09:00 switch to the Fruit Jam 1:13:30 Fruit Jam booted 1:17:39 debug the startup crash 1:25:30 audio playback buffers 1:33:00 examine rp2350 Datasheet DMA and continue to debug DMA 1:50:22 maybe console uart running background task triggers issue 1:52:43 audio_dma_stop called twice? 1:58:27 any final questions? adfru.it/discord 2:04:00 wrap up - thanks to Tim for future deep dives ----------------------------------------- LIVE CHAT IS HERE! http://adafru.it/discord Subscribe to Adafruit on YouTube: http://adafru.it/subscribe New tutorials on the Adafruit Learning System: http://learn.adafruit.com/ -----------------------------------------