Author Topic: Programming Xilinx XC1765ELSO8C PROM with TL866II  (Read 1052 times)

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Offline siliconbrushTopic starter

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Programming Xilinx XC1765ELSO8C PROM with TL866II
« on: November 28, 2020, 04:18:04 pm »
Hi,

Can anyone tell me if it's possible to program a XC1765ELSO8C PROM with a TL866II programmer? If not, can anyone recommend a cheap programmer that does support this PROM type. I'm doing a project where I need to program this PROM.

XC1765ELSO8C datasheet:
http://www.xilinx.com/support/documentation/data_sheets/ds027.pdf

I do know that the Roman Jones programmer supports it, but it's a bit expensive and not easily available it seems.
http://www.roman-jones.com/SPROMProgrammer.htm

Thanks in advance.
 

Offline jmelson

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Re: Programming Xilinx XC1765ELSO8C PROM with TL866II
« Reply #1 on: November 28, 2020, 05:39:13 pm »
Hi,

Can anyone tell me if it's possible to program a XC1765ELSO8C PROM with a TL866II programmer? If not, can anyone recommend a cheap programmer that does support this PROM type. I'm doing a project where I need to program this PROM.
You might be able to replace this with an SST 25VF010 or similar serial EPROM, although it might take a change to the program select jumpers on the FPGA.  I've also used the Atmel AT17LV256 reprogrammable EPROM for some older FPGA boards.  All of these are way cheaper than Xilinx, and reprogammable.  These other parts may point you toward other programmer units that will work.

I've used the Xeltek Superpro to program some of these parts.

Jon

Jon
 
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Offline siliconbrushTopic starter

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Re: Programming Xilinx XC1765ELSO8C PROM with TL866II
« Reply #2 on: November 28, 2020, 07:05:50 pm »
Thanks man :-+. It would be great if I could use such a EPROM instead. This project was done by someone else years ago and I'm trying to replicate it.
Project entails upgrading a BGA304 CPU from 300Mhz one to an 600Mhz, which I hope to do by someone more experienced. 
After this the old PROM needs to be removed and replaced with the new one which has the correct setup data for the new CPU.  The PROM file is available as a .mcs file, which I assume can be used in an Atmel AT17LV256 EPROM?

It's been 15 years or so since I've programmed EPROMs in college (and then only for a bit), so I'll need to refresh my memory.

Project details:
http://www.sgidepot.co.uk/o2cpumod.html

This project is definitely out of my depth, but as I don't have anything better to do, I might as well try it ¯\_(ツ)_/¯.

EDIT: I checked farnell and mouser for similar chips. The Atmel AT17LV256 seems to be very similar to the Xilinx PROM with same pinout. So it's probably my best bet. I just have to find a programmer for it.
« Last Edit: November 29, 2020, 12:35:57 pm by siliconbrush »
 

Offline siliconbrushTopic starter

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Re: Programming Xilinx XC1765ELSO8C PROM with TL866II
« Reply #3 on: December 04, 2020, 01:03:21 pm »
I got the  AT17LV256  EEPROM. I'm trying to program it without success so far. Can anyone confirm the blue arrow is pointing to PIN 1 of the EEPROM. Thanks.

 

Offline psxpetey1

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Re: Programming Xilinx XC1765ELSO8C PROM with TL866II
« Reply #4 on: January 28, 2022, 05:27:26 pm »
why didnt you use the xilinx original?
 


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