Beginners EPROM question

[veedub565]

I posted previously about getting some EPROM chips programmed, see thread here  https://www.eevblog.com/forum/microcontrollers/uvprom/msg4856921/#msg4856921 I was able to get them programmed professionally at a very reasonable price, but there is a problem and I thought it best to create a new thread.

There are 4 .bin files on 4 EPROM chips, and they contain the firmware for a piece of HP Test equipment (8341B). The original firmware was 1988, and the new .bin files are the updated 1992 firmware. It should just be a straight swap, program some EPROM's with the 1992 firmware and swap out the originals.... only it hasn't worked, the instrument won't boot at all and I had to put the old chips back in with the original firmware on.

I realise this isn't a test equipment or repair section of the forum, but my question is... would changing the .bin filename have any effect on the data programmed into the EPROM ?

original filenames were

8340BU34,TITMS27PC256-2Rev1992
8340BU35,TITMS27PC256-2Rev1992
8340BU36,TITMS27PC256-2Rev1992
8340BU37,TITMS27PC256-2Rev1992

And to make things a bit simpler I renamed them to

U34
U35
U36
U37

And I'm just wondering now if doing that has caused it not to work. I don't really know enough about programming EPROMS to know if it could or not.   


**edit** just incase anyone notices the instrument is 8341b, and the .bin files say 8340b. It's the same firmware for both so thats not the problem.

[RoGeorge]

would changing the .bin filename have any effect on the data programmed into the EPROM ?

No.

[veedub565]

Thanks

[jonsikul]

Did you ever get this to work?

[m k]

If not then ROMs can be too slow.

1 in -1DC of original type indicates that access time is 100ns, one place states that 170ns is max.
Filenames have -2 in them, that indicates 200ns.
Manuals didn't help, or I was too fast.

[veedub565]

Turns out there was a fault with the prommer that caused some of the data to be missing. I sent them back to be done again and it worked fine.

[m k]

I had to make my own copier when Mini-Pro didn't read some weak bytes.