Author Topic: HP 1663A logic Analyzer not starting up after flash ROM update.  (Read 1033 times)

0 Members and 1 Guest are viewing this topic.

Offline imacTopic starter

  • Newbie
  • Posts: 4
  • Country: se
HP 1663A logic Analyzer not starting up after flash ROM update.
« on: February 03, 2021, 08:00:14 pm »
My HP 1663A logic Analyzer does not start up after the flash ROM update. The power up self test runs okay and after that a grey screen with some strange signs.

Is there a way to re-run the flash ROM update at startup?
« Last Edit: February 03, 2021, 08:08:38 pm by imac »
 

Offline imacTopic starter

  • Newbie
  • Posts: 4
  • Country: se
Re: HP 1663A logic Analyzer not starting up after flash ROM update.
« Reply #1 on: February 03, 2021, 08:02:34 pm »
The update was okay.
 

Offline imacTopic starter

  • Newbie
  • Posts: 4
  • Country: se
Re: HP 1663A logic Analyzer not starting up after flash ROM update.
« Reply #2 on: September 28, 2021, 06:28:59 pm »
Is there anyone that have a dump of the eprom U14 01660-80004?
 

Offline fzabkar

  • Super Contributor
  • ***
  • Posts: 2605
  • Country: au
Re: HP 1663A logic Analyzer not starting up after flash ROM update.
« Reply #3 on: September 28, 2021, 08:53:12 pm »
Could we see your flash dump and update files?
 

Offline imacTopic starter

  • Newbie
  • Posts: 4
  • Country: se
« Last Edit: September 30, 2021, 05:07:38 am by imac »
 

Offline fzabkar

  • Super Contributor
  • ***
  • Posts: 2605
  • Country: au
Re: HP 1663A logic Analyzer not starting up after flash ROM update.
« Reply #5 on: September 30, 2021, 08:15:07 pm »
I can see how the files are structured. There is a 0x200-byte header after which is the actual payload. The payload is delivered in 0x100-byte blocks, with the first big-endian word being the byte count for that block. All blocks except the last have a byte count of 0xFE (= 0x100 - two bytes for the count).

If you were to provide a flash dump, I could verify whether the payload has been unpacked correctly. What surprises me is that there doesn't appear to be any checksum.

I have attached the unpacked files, as I see them.
« Last Edit: October 01, 2021, 09:57:34 pm by fzabkar »
 
The following users thanked this post: fenugrec


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf