CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=main 2021-03-18T23:55:42+00:00 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 2021-02-12T12:58:48+00:00 microDev 70126934+microDev1@users.noreply.github.com 2021-02-12T12:58:48+00:00 urn:sha1:527b11f99e2d060f48b6485081f2c0618ce72cc5 - update FLASH_FIRMWARE length - use linker script define value 2021-02-06T02:44:06+00:00 Scott Shawcroft scott@tannewt.org 2021-02-06T02:39:15+00:00 urn:sha1:22dc7d5359654cbf7124f12b8fc0d83b60fc0921 Also adds unique id support Fixes #4039 and hopefully #4107 2021-01-21T07:30:15+00:00 Scott Shawcroft scott@tannewt.org 2021-01-21T07:30:15+00:00 urn:sha1:6a6f22b0e6d8e99a8c9c264f4f10679d6b874415 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