LXR02 Open Source with wavetables
I’ve got a port of the open source Sonic Potions LXR working on the Erica Synths LXR02. Pretty much everything is in there so that it acts like the old firmware, but the Erica version hardware is quite different. It uses a single Cortex M7 instead of the old M4+AVR design. So basically all the hardware interaction code is new, but the DSP and sequencer code is more or less unchanged and it’s intercompatible with all the 0.37 version files.
I haven’t added much in the way of new front-end features yet other than adding the voice faders and midi control of morph, but I did try to systematize how the sample loading works a bit better, and added some waveform interpolation so you can load a wavetable and not have it go all steppy on you. Bit more of an explainer here:
and I’ll put the code up on GitHub over the weekend but you can get the .img to flash the firmware from here:
it works through Erica’s bootloader, so it’s just “put img in root of the SD, then power on pressing the encoder.” Normal update style, you can switch between this and the Erica Synth version easily. The discord is lobby style, just say hi and I’ll add you so you can see the chat history and stuff.