BPM Microsystems Adapter Carrier Altera EPM3128ATC100-10N Backup Attempt.

Let’s attempt to back up the Altera EPM3128ATC100-10N. With my luck, it’s probably locked, but it’s always worth trying. You never know when one might fail or become corrupted, and given BPM Microsystems anti-repair stance, backing up is essential. If you are seeking the backup of the BPM Adapter 93C46 Eprom Info You Can read about there Here.

It would be awesome if these companies would comply with right to repair laws and save us the time and just make the info available. They purposely make it hard for the repair of second hand equipment.

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Tools Xeltek IS01 In System Programmer

Target Chip.. Altera EPM3128ATC100-10N on a common BPM Chip Carrier. Most these Carrier are the same hardware but the code on the 93C46 is different stickers are the Altera seem to say the same code is loaded some have different revs A B C but that’s it.

Look at the pretty Target!!

Supported in the Xeltek IS01 In System Programmer.

We Will Focus on J12 Triangle is Pin 1

1st We Pull Up The Data Sheet and Grab In the System Pin Outs 
Pins requiredon the Xeltek IS01 for In system programming

We Want to Focus on The Following Pins.

LT1805 J12-1  (Pin 3 is +V)
TDI: Pin 4  J12-2
TDO: Pin 73 J12-3

TMS: Pin 15 J12-4
TCK: Pin 62 J12-5
GNDINT Pin:38 J12-6

I Will Update as I am Able and Have the Time as I make Progress.. A lot of Updates this week to the blog already.

Last Updated on October 23, 2025 by Steven Rhine