suspect-devices/circuitpython/ports/raspberrypi/supervisor/port.c, branch main CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=main 2021-03-22T22:24:27+00:00 Fix doc build and address feedback 2021-03-22T22:24:27+00:00 Scott Shawcroft scott@tannewt.org 2021-03-22T22:24:27+00:00 urn:sha1:f200e6a21e851ab541027d33baf897fa5e5d4b0c Redo RP2040 flash settings 2021-03-18T23:55:42+00:00 Scott Shawcroft scott@tannewt.org 2021-03-04T21:12:24+00:00 urn:sha1:5d2b60cbf69c99abd6984c298d4f052514221177 This switches stage2 to C and uses Jinja to change the C code based on flash settings from https://github.com/adafruit/nvm.toml. It produces the fastest settings for the given set of external flashes. Flash size is no longer hard coded so switching flashes with similar capabilities but different sizes should *just work*. This PR also places "ITCM" code in RAM to save the XIP cache for code execution. Further optimization is possible. A blink code.py still requires a number of flash fetches every blink. Fixes #4041 run code formatting script 2021-03-15T13:57:36+00:00 microDev 70126934+microDev1@users.noreply.github.com 2021-03-15T13:57:36+00:00 urn:sha1:a52eb88031620a81521b937f2a0651dbac2bb350 Merge remote-tracking branch 'adafruit/main' into busio-uart-rp 2021-02-26T00:59:15+00:00 Scott Shawcroft scott@tannewt.org 2021-02-26T00:59:15+00:00 urn:sha1:3f08cb47b846fff41ef9a45d49758f0cef61e723 implement suggested changes 2021-02-24T19:18:36+00:00 microDev 70126934+microDev1@users.noreply.github.com 2021-02-24T19:18:36+00:00 urn:sha1:5d7fdafcdec126f4f552689df25cecf30b39265d - add internal buffering - rtc initialization fix Implement audiobusio and enhance PIO for it 2021-02-23T23:50:00+00:00 Scott Shawcroft scott@tannewt.org 2021-02-23T23:50:00+00:00 urn:sha1:360475e26618cba98522d5dd86d0051d3a296fb3 This adds I2SOut and PDMIn support via PIO. StateMachines can now: * read and read while writing * transfer in 1, 2 or 4 byte increments * init pins based on expected defaults automatically * be stopped and restarted * rxfifo can be cleared and rxstalls detected (good for tracking when the reading code isn't keeping up) Fixes #4162 Add PWM based audio playback 2021-02-09T23:38:33+00:00 Scott Shawcroft scott@tannewt.org 2021-02-03T01:14:39+00:00 urn:sha1:191b143e7ba3b9f5786996cbffb42e2460f1c14d See https://learn.adafruit.com/circuitpython-essentials/circuitpython-audio-out to get started. Fixes #4037 raspberrypi: implement reset, reset_to_bootloader 2021-02-04T18:07:50+00:00 Jeff Epler jepler@gmail.com 2021-02-04T15:29:01+00:00 urn:sha1:6e153d99484c2b927c3e670e9f7a178363668960 This makes all the following work: * normal microcontroller.reset() * reset into safe mode or UF2 bootloader via microcontroller.on_next_reset() * reset into UF2 bootloader via the "1200 baud trick" The implementation of reset_cpu is from micropython. rtc implementation for rp2040 2021-02-01T18:30:00+00:00 microDev 70126934+microDev1@users.noreply.github.com 2021-02-01T18:30:00+00:00 urn:sha1:ec03267035d84c0cb0ba7ed645a487b059401946 Add initial RP2040 support 2021-01-21T03:16:56+00:00 Scott Shawcroft scott@tannewt.org 2021-01-21T00:47:18+00:00 urn:sha1:733094aead6e84b42da54655b2b0a5d0dbd1a503 The RP2040 is new microcontroller from Raspberry Pi that features two Cortex M0s and eight PIO state machines that are good for crunching lots of data. It has 264k RAM and a built in UF2 bootloader too. Datasheet: https://pico.raspberrypi.org/files/rp2040_datasheet.pdf