HX3.5 DSP Updates

Preliminary

While organ sound generation is done entirely in hardware (FPGA), the HX3.5 board uses an additional Digital Signal Processor (DSP) for reverb effects (EFX) and General MIDI voice generation. With an extended HX3 licence, 128 GM sounds are installed as a so-called soundbank. Up to two soundbanks can be installed at a time; a second soundbank may contain additional, more sophisticated instruments (with same MIDI GM bank and program numbers) which replace the instruments in first soundbank.

At this time, the DSP firmware and DSP soundbank(s) cannot be updated by SD Card; use USB connection instead. Please follow instructions below carefully.

Update by USB

In USB firmware/soundbank update mode, HX3.5 cancels the "MIDI over USB" mode and registers as a DFU-capable device. An updater application named "DreamDFU.exe" (Windows OS only) handles all further USB communication.