Roland DIF-AT: Difference between revisions

added info to device over view pin header listings
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It has 2 buttons on the PCB: 1 - RESET, reset circuit and IC  2 - Launch monitor diagnostic mode.  A 50 pin header provides easy access to most address lines and relevant (to operation) CPU/RAM/Flash lines.  This will be convenient to run a logic capture during boot and operation later.   
It has 2 buttons on the PCB: 1 - RESET, reset circuit and IC  2 - Launch monitor diagnostic mode.  A 50 pin header provides easy access to most address lines and relevant (to operation) CPU/RAM/Flash lines.  This will be convenient to run a logic capture during boot and operation later.   


I beeped out the 50 pin connector - thankfully the vias were not tented - this took absolutely ages as it was : )    <gallery>
I beeped out the 50 pin connector - Many pins have multiple connections.  Happily; the vias were not tented - this was a long endeavour even with   
 
continuity through the vias : )    <gallery>
File:DIFat 50 pin header1 .png|alt=dif at pin header pins 1 - 16|header pins 1 - 16
File:DIFat 50 pin header1 .png|alt=dif at pin header pins 1 - 16|header pins 1 - 16
File:DIFat 50 pin header2.png|alt=header pins 16 - 24|header pins 16 - 24
File:DIFat 50 pin header2.png|alt=header pins 16 - 24|header pins 16 - 24