Deep Dive w/Scott: Lots of RP2040 stuff #adafruit #rp2040
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Deep Dive happens every week. Normally Fridays at 2pm Pacific but occasionally shifted to Thursday at 2pm. Next week will be on Thursday!
0:00 Getting Started
06:29 Housekeeping
12:17 will there be a rp2040 board with wifi on it?
13:32 Would it possible theoretically to have a module that works in the background kind of like rotaryio or gamepad but is responsible for reading touch screen data and queuing it up to return to the foreground coded when requested?
14:45 any RISC-V port plans for CP (ala ESP32C3 or BeagleV)
17:56 Is it possible to use an ESP32 board to connect to Wifi?
19:13 Is there a way of obfuscating code on the device?
20:12 would it be fair to characterize the pico as a more CP friendly cortex M0 than the SAMD21 boards from adafruit, given the increased RAM and clock speed?
21:18 blinka on beagleboard considering putting Blinka/CP on BeagleV as GSOC project for BeagleBoard.org
21:38 video / VGA?
25:54 Is it possible to use a QSPI PSRAM chip with the RP2040 like is used on the ESP32-WROVER and Teensy 4.1?
28:08 rp2040 chips sent out to vendors / Pimoroni on CP Downloads
31:19 Does Adafruit have any plans for the new dual core asymmetric multiprocessing chips like the STM32H series and the similar chips from Freescale?
32:18 Is Raspberry Pi releasing just stand alone chips for everyone? Or is this limited to only partner board-makers (like Adafruit)?
34:13 Wiznet5k library still requires bus_device library, which moved to core? As in native.
35:12 Do micropython and Circuit python have the same memory requirements?
37:55 Secondary USB CDC (serial) channel - bug 231
39:30 Many people had projects for the second Serial... where are those projects now?
39:49 Any hope of using a second serial on SAMD21?
40:21 does the 2nd USB port mean that you can use USB serial while testing Deep Sleep instead of simulating it
41:56 Bit transpose (jepler)
42:29 On a side note, newer versions of CPython support breakpoint() instead of having to use import pdb; pdb.set_trace()
44:21 I2S support rp2pio pinstate/direction ...
45:31 Scott, did you fix the error messages, or do you still want me to do the PR?
46:00 I bet your Python linter loves that StateMachine constructor with all those arguments
48:48 Fix second shared PWM
50:40 pin changes between Rev A and Rev C in rp2040 feather…
52:00 Will you be announcing the availability of Feather2040 in the store during a deep dive again? Worked well for the MagTag!
52:50 Can CP know the USB host status? i.e. connect to a phone, and it goes to sleep.
54:05 Next week is Thursday
57:00 RP2040 support for UART / merged
57:44 Can I "link" the second CDC serial to a UART and do USB to Serial with a Pico?
1:01:00 Can you demo your workflow fixing spelling mistakes?
1:02:13 but does the pico work on arduino IDE yet or will it ever work on it?
1:02:45 Was there a Mu meeting and will Mu be confused with the second CDC serial?
1:03:55 typo PR demo - tutorial on how to edit from github
1:06:23 I am thinking about building a vt220 dumb terminal for use on my PDP11/23 emulation. … see raspberry pi terminal project site:blog.adafruit.com (pygraphics https://github.com/fbergama/pigfx )
1:09:13 adafruit projects learn.adafruit.com
1:10:00 Bare metal - meaning…
1:10:33 are there any plans for a visual studio code RP2040 CircuitPython emulator like the Playground express
1:13:03 How is the UART work going - I can see good results in the PR - would there be an eta on that?
1:17:40 Do you folks do automated unit test using a hardware fixture to emulate devices?…. ( no )
1:20:20 We can have a build system/testing session on Discord sometime.
1:23:40 Ladyada
1:24:42 building the tester for the feather rp2040 pcbs
1:29:45 Programming boards using SWD and https://github.com/adafruit/Adafruit_DAP
1:33:00 Feather RP2040 Tester screenshot…
1:34:00 UF2
1:45:11 Q: Can you explain what doesn't get whacked in light sleep (how does "audio playback" continue?). Do I/O pins retain state, PWMs keep running, etc...?
1:47:10 speaking of light sleep, since it basically enables to come out of time.sleep with a pin interrupt or something, shouldn't it be supported apart from deep sleep, in order to make it easier to have it on more ports
1:48:15 move to ninja build system
1:50:44 IMX - c structures to describe flash -... execute off flash
1:50:00 external_flash structures for CP
1:53:00 unify the way we store flash descriptions ( TOML ) https://toml.io/en/
2:07:00 tomlkit on github - python tool that preserves comments https://github.com/sdispater/tomlkit
2:09:20 Does TOML have conditional includes? That would make cascading a lot easier.... no
2:10:15 Strict YAML ( see wikipedia )
2:15:20 wrap up