CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=6.2.0-rc.0 2021-03-23T16:06:48+00:00 2021-03-23T16:06:48+00:00 Scott Shawcroft scott@tannewt.org 2021-03-23T16:06:48+00:00 urn:sha1:36edc4bb89a01d3dcb5d7694dc889c91ddbdf50b 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