User contributions
27 April 2026
File:Reset circuit.jpg
reset IC and switch
File:5v conditioning circuit.jpeg
power conditioning
File:Sync section optocouplers.JPG
Part of the sync circuitry with optocouplers
Roland DIF-AT
Extract Firmware
m+74
Roland DIF-AT
Device Overview
m+62
Roland DIF-AT
Device Overview
m+69
Roland DIF-AT
added info to device over view pin header listings
+739
File:DIFAT PIN HEADER GENERAL NOTES.png
General notes about the CPU,Flash, SRAM operational pins
Roland DIF-AT
Device Overview
+20
Roland DIF-AT
Device Overview
m+45
File:DIFat 50 pin header4.png
pins 38 -50 on the header
File:DIFat 50 pin header3.png
pins 25 -38 on the header
File:DIFat 50 pin header2.png
pins 16-24 on the header
File:DIFat 50 pin header1 .png
pins 1 to 16 on the header
Roland DIF-AT
Device Overview: update extract firmware section
m+1,305
File:DIF AT FLASH SETTINGS.png
no edit summary
Roland DIF-AT
continued adding info to the page
m+935
26 April 2026
Roland DIF-AT
Created page with "PCB photos, Pinouts, Pin header, Device operation, Connections between subsystems. Notes on firmware structure, Machine language monitor program, DFU, firmware extraction, fir..."
File:DIFAT 24.jpg
no edit summary
File:HEW.png
High performance embedded workshop RAM settings for firmware.
File:Binwalk entropy image.png
Binwalk entropy file for firmware
File:H8 3005 CPU.JPG
Roland used a full cpu for this design.
File:Main Board Side On.JPG
main board different angle (missing ICs now)
File:SRAM + NOR FLASH.JPG
Sram and NOR flash chip (512kb)
File:ALESIS OTP CPLD.JPG
Not sure if this is OTP GAL/CPLD. Custom.
File:TDIF-BOARD.JPG
TDIF daughter board.
File:DIF-AT MAIN.JPG
Main board full
Audio/MIDI
Digital Audio, Soundcards, Analog/Digital Recording devices, MIDI devices, and anything music (re)production related.
+319
Audio/MIDI
header cat. page audio midi
m+18
Audio/MIDI
created catagory page Audio MIDI
Electronic Tools
layout debugging tools
m+2
Electronic Tools
added debug tools
m-2
Electronic Tools
Tool Index
m+381