Poly Evolver Rack Operating Systems

The Poly Evolver Rack has three distinct types of processors, Main, Voice, and DSP, and each has its own operating system.

To check the installed versions in your Poly Evolver Rack:

Hold the RESET button and press COMPARE. The Main, Voice, and DSP versions are displayed.

This is the only accurate method of determining the installed version. The paper labels on the chips are not to be relied upon and the editor software may not display the correct version.

Updating From Main Version 1.0 to Version 2.x

All Poly Evolver Racks serial numbers 224 and above already have Main version 2.x. If you have version 1.0 and wish to update to version 2.x, some of the socketed ICs must be physically replaced. Download the docs for more details. The ICs can be purchased for $35 from our Web store. You can also return your Poly Evolver to the factory to be updated. Contact for details.

Updating From Main Version 1.2 to Version 2.x

To update Poly Evolver Racks running version 1.2 to version 2.x, simply load the current version using the SysEx files below.

OS Download

The Main, Voice, and DSP operating systems are available for download in SysEx format.

Installation

The OS can be installed using any of the methods discussed in Operating Systems for DSI Products. When the Main SysEx load begins, the display reads "Main OS Load" and counts down for the duration of the transfer. When the countdown concludes, the display changes to "Writing Now!" After the OS is written, normal operation will resume. Do not turn off the Poly Evolver while the OS is writing!

When the Voice SysEx load begins, the display reads "Voice OS Load" and counts down for the duration of the transfer. When the countdown concludes, the display changes to "Writing Now!" After the OS is written, normal operation will resume. Again, do not turn off the Poly Evolver while the OS is writing.

While the DSP SysEx loads the display reads "DSP OS Load" and counts down. After the OS is written, normal operation will resume. Once again, do not turn off the Poly Evolver while the OS is writing.

Troubleshooting

Updating the OS is generally very easy, but occasionally there are problems. The most common symptom is that the countdown stops before the OS has transferred completely. This typically occurs because either the data transfer is overwhelming the synth or because some spurious MIDI data (such as clocks or merged data) is affecting the transfer. In the first case, see if you can reduce the transfer rate and/or buffer size of the program being used to transfer the SysEx data. In the second case, make sure there is no other MIDI data on the buss while loading the OS. In rare cases, MIDI drivers have also been known to interfere with SysEx transfers. If all else fails, check for updated drivers for your interface or try another MIDI interface.