Hi,
FYI, 6 years ago a guy called Christophe Janot posted some messages in the Xpantastic forum about this.
I did had some exchanges with him outside Xpantastic. He was building a kind of clone of Matrix 12 with extra functionalities.
Here is what he said at the time about the CPU (translated):
"Otherwise,
from what I understood from the architecture, the two CPUs operate
completely asynchronously and can therefore work at different
frequencies. It is also quite possible to boost the CPU of the analog card up to 3.5Mhz (instead of 2Mhz) by replacing it with a 63C09P. I use this CPU on my main board (but 2Mhz). Now, there is a timer on the analog board, and I wondered if it was not used to clock the generation of different modulations. If this were the case, it would be necessary to modify the firmware to program it differently. I also wondered if the main DAC would be able to support the additional data rate caused by the increase in CPU frequency."
He was prototyping his clone on a xmos/xcore evaluation card, and wanted to put everything open source ¨¤ la Mutable Instruments.
I did get no news from him on the internet since this time.
The last status I had at the time (sept. 2012)? is that he was able to boot the native rom images and load the presets.
I have no news since.
Regards,
?
