Products > Test Equipment

DG4000 - a firmware investigation

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GonzoTheGreat:

--- Quote from: Gandalf_Sr on June 10, 2020, 06:07:21 pm ---[EDIT] It's fixed, I used a different (older) USB drive, that is the problem 99.9999999999999999999% of the time with these updates in my experience.  So the original drives must have allowed the bootloader to update but then, the same drive, wouldn't do the firmware update!

--- End quote ---
Buying a small pendrive nowadays borders a miracle!

I wonder what the problem is with the newer pendrives?
Is it the cluster size ?  If "yes" then creating a smaller partition on the pendrive would solve the problem, wouldn't it?

Must the partition be formatted as FAT32 or can it be also FAT16 ?
...and what are the acceptable Partition IDs in the partition table anyway ( 0x0b, 0x0c, 0x06, 0x0e, etc...) ?

Finally, must the filename be uppercase or lowercase and is any length acceptable?

tv84:
FAT, FAT16 or FAT32 should work.

Format it with a linux machine.

GonzoTheGreat:
Just tried Linux - it did not work.

Could you post the partition table and Boot Sector/FS Information Sector so I can see what parameters work ?

Maybe the pendrive must support CHS addressing and the FAT partition must start on cylinder 1, ...or on head 0 and sector 1, etc...

tv84:

--- Quote from: GonzoTheGreat on August 04, 2020, 04:30:38 pm ---Just tried Linux - it did not work.

Could you post the partition table and Boot Sector/FS Information Sector so I can see what parameters work ?

Maybe the pendrive must support CHS addressing and the FAT partition must start on cylinder 1, ...or on head 0 and sector 1, etc...

--- End quote ---

:)

I can't go into such detail as I don't have any pen DG4000-approved.

You need to use a small pen and not worry with those inner works.

Format it fully in linux and then a quick FAT format. I've said time and time again: IMHO sometimes it might be a controller timing thing and not so much the formatting params.

GonzoTheGreat:

--- Quote from: tv84 on August 04, 2020, 04:38:16 pm ---You need to use a small pen and not worry with those inner works.

--- End quote ---
I need to worry about these details because, the smallest pendrive I have is 8GB.

I tried local computer stores - nothing
I tried local toy stores - nothing
I tried local novelty stores - nothing
I even asked my neighbors - nothing (although when I offered to trade a new 64GB pendrive for an old small used one, they suspected it was some kind of scam).

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