I've got an old Behringer V-AMP guitar multieffects. I've known it can be updated using files available on the net. This need drove me to look for some info. After some search I've got its schematics.:
It is based on DSP-56364 (motorolla) and 80C32. The first one is the DSP operations. The last one is responsible for knobs control and MIDI. As I could understand, the 80C32 uploads the DSP code to the 56364.
After this little home work I started to think: As the firmware is available, and its is some kind easy to disassembly it - the control section (80C32) is a Intel MCS-51 compatible core, why not to adopt this hardware to achieve an open source DSP software solution.
Look, I am not telling to clone it, as it could be a tedious and difficult task. I am suggesting, just to get some knowledge and use it with own open software, as guitar DSP architecture. If someone is worry about copyright laws, it can be done without disassembly the code, just understanding the schematics.
Although this devices use a lot of components, it do not use any PAL device which could difficult the understand of it.
Is there any other people interested on it?