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MRCC 880 issue with patch data sysex not transmitting from PC to synth DIN input
#3
==> oldgearguy - Yes, that's it: MRCC 880 apparently has a 256 byte transmit limit. Thank you!

Prior to reading your reply I was playing around with transmitting the same CZ patches with "SysEx Librarian" app on macOS, and the app provides a preference for "transmit buffer size."

When changing the value to anything other than Default (i.e. 256, 128, 64. etc) the patch successfully transmitted the patch's 264 bytes and the synth's temporary memory was updated in real time. And after that, 7 bytes are now sent back to the PC from the synth (F0 44 00 00 70 30 F7).

Not sure what "Default" value is but it is obviously more than 256 (512?)

So, since the MRCC doesn't work for this application without being able to set this value in an application -- bummer -- it looks like my only other alternatives are to pursue with the app developer to provide a transmit buffer preference... or try to return the MRCC 880, since patch editing for legacy synths is its primary use, currently.

But at least I now know a way to transmit patches to the CZ's internal temporary memory. Thanks again.
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RE: MRCC 880 issue with patch data sysex - TRANSMIT BUFFER SIZE - by WireWrangler - 10-31-2022, 04:09 PM

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