Deep Dive w/Scott: RP2040 discussion w/Jeff #adafruit
33Today Jeff will be joining to chat RP2040 PIO and CircuitPython audio.
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Deep Dive happens every week. Normally Fridays at 2pm Pacific but occasionally shifted to Thursday at 2pm. Typically goes for two hours or more. Questions are welcome. Next week should be on Friday.
0:00 Getting started and hellos
04:39 Housekeeping
06:56 Jeff
17:25 Extra UART CDC
23:43 Would MP3 decoding run on the other core?
26:46 by the way I'm not sure I grasped what chips can have the secondary CDC, it looks like the M0, but also the ESP32S2 don't have enough USB endpoints ?
27:34 pico 8 strand neopixel demo
34:43 This is probably not cost effective, but can you replace the shift register with a machXO tiny fpga, and instead of optmizing the code on the side of cpy, just do it on the fpga?
35:09 Hello. what is RP2040?
38:02 So is Limor going to do a board with that shift registor and 8 connector for neopixel strip?
43:03 Can you talk a bit about implementing a high speed counter running in the PIO?
41:11 Need a RP2040 signal analyser to work on PIO and see what I am doing…
49:30 os.urandom
57:20 Re-review jepler’s PR: https://github.com/adafruit/circuitpython/pull/4219
1:22:53 bitops only for RP2040?
1:23:24 Question: would you rather contributors merge their own work (once approved) or if say I do a review of Jeff's code and say yup this is fine, choose to merge it? Or wait for one of the maintainers to do it
1:32:47 bye jeff
1:43:18 Has anyone asked, why did pi develop their own chip?
1:02:06 Re-review jepler’s PR: https://github.com/adafruit/circuitpython/pull/4219
1:59:37 wrap up
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