Commit Graph

5 Commits

Author SHA1 Message Date
BCG 0ced12683c Revert "Added support for 125MHz to WS2812 for RP2040"
This reverts commit b4eb406a43 (erroneous
push).
2022-02-14 01:06:23 -05:00
BCG b4eb406a43 Added support for 125MHz to WS2812 for RP2040 2022-02-14 00:48:33 -05:00
Ayke van Laethem 259593e608 ws2812: add support for 168MHz (e.g. Adafruit Feather STM32F405) 2021-09-17 10:19:21 +02:00
deadprogram 3b16972ed8 all: use build directives for both Go1.17 and earlier versions
Signed-off-by: deadprogram <ron@hybridgroup.com>
2021-09-16 18:31:33 +02:00
Ayke van Laethem b3af3f594e ws2812: generate assembly instead of handwriting it
Previously, a new implementation had to be written for each processor
speed. This is tedious and error-prone, therefore I've rewritten all of
the assembly code using a tool that will calculate exactly how many NOP
instructions are required.

I've also switched from build tags to a switch statement over all
processor speeds.

All in all, this means that:
  - Chips with a supported CPU performance will automatically be
    supported (no build tags necessary).
  - Adding a new chip is as easy as adding the MHz count to the
    generator script and to the switch statement.

Right now this is only for the Cortex-M, but it's certainly feasible to
extend this to other architectures such as the AVR.
2021-09-07 18:00:55 +02:00