Port of Clouds/Parasites/Beat Repeat to Grayscale Supercell and Microcell platforms.

Note that this version has platform-specific drivers and a custom linker script and is not compatible with other hardware versions of Clouds.

It is based off the Parasites codebase and merges the two modes from Beat Repeat for a total of eight modes:

As far as possible, the commit history has been preserved, for better for worse...

Hardware Variants

Since there is a small hardware difference (inverted pots) there are two possible build targets: Supercell and Microcell

To build for Supercell hardware, use make -f supercell/makefile VARIANT=SUPERCELL .... The resulting files are in build/supercell/.
To build for Microcell hardware, use make -f supercell/makefile VARIANT=MICROCELL .... The resulting files are in build/microcell/.

This doesn't change anything for the bootloader (1), which should be common to both(famous last words...)

At the risk of repeating myself: This code is not compatible with other hardware versions of Clouds!

Notes

(1) The bootloader is the least tested part of this project.
Released versions have been compiled using gcc-arm-none-eabi-5_4-2016q3
The stmlib submodule still uses mqtthiqs/stmlib which has diverged somewhat from pichenettes'. This allowed setting of an external linker script out-of-the-box.
However, that does mean that the scripts for programming appear to require openocd 0.9.0 so the command line calls may be different to a current version of pichenettes' repo.
The submodule stm_audio_bootloader has been updated to the latest master to work with newer python versions.
The custom linker script adds sections for relevant C++ features.

Code (STM32F projects): MIT license.