Electronics > Repair
Agilent 34461A corrupted flash
<< < (22/41) > >>
ElectronMan:

--- Quote from: analogRF on July 30, 2023, 10:05:29 pm ---ok I duplicated the commands that you posted and then dumped one page from 0xE0000
as you see here the result is exactly a copy of the page at 0xC0000 including the oob data

--- Code: ---p510> nand dump 0xc0000
nand_dump len: 2048, ooblen 64, off 0xc0000
Page 000c0000 dump:
        ef 1e 8b 0c 72 61 6d 62 6f 6f 74 3d 64 68 63 70
        20 30 78 34 30 30 30 30 30 30 20 6e 6b 2e 62 69
        6e 3b 72 75 6e 20 62 6f 6f 74 63 6d 64 00 62 61
        75 64 72 61 74 65 3d 31 31 35 32 30 30 00 67 61
        74 65 77 61 79 69 70 3d 31 39 32 2e 31 36 38 2e
        31 2e 31 30 00 6e 65 74 6d 61 73 6b 3d 32 35 35
        2e 32 35 35 2e 32 35 35 2e 30 00 63 68 69 70 76
        65 72 73 69 6f 6e 3d 41 41 00 62 6f 61 72 64 76
        65 72 73 69 6f 6e 3d 34 00 66 74 70 3d 64 68 63
        70 00 62 6f 6f 74 64 65 6c 61 79 3d 30 00 65 63
        63 3d 34 00 63 6e 66 67 5f 76 6d 63 5f 69 6e 70
        75 74 5f 70 69 6e 3d 6d 77 20 30 78 62 33 30 30
        30 30 32 38 20 30 78 30 30 30 34 30 33 30 30 20
        31 3b 6d 77 20 30 78 62 33 30 30 30 30 34 38 20
        30 78 66 66 66 62 66 66 66 66 20 31 00 63 6e 66
        67 5f 6c 61 6e 5f 69 6e 70 75 74 5f 70 69 6e 3d
        6d 77 20 30 78 62 33 30 30 30 30 33 30 20 30 78
        30 30 30 30 30 30 30 38 20 31 3b 6d 77 20 30 78
        62 33 30 30 30 30 35 30 20 30 78 46 46 46 46 46
        46 46 46 20 31 3b 6d 77 20 30 78 62 33 30 30 30
        30 31 38 20 30 78 30 30 30 30 30 31 30 31 00 70
        72 65 62 6f 6f 74 3d 6d 77 2e 6c 20 30 78 62 33
        30 30 30 30 30 63 20 30 78 66 66 66 66 61 63 66
        34 3b 20 72 75 6e 20 63 6e 66 67 5f 6c 61 6e 5f
        69 6e 70 75 74 5f 70 69 6e 3b 20 72 75 6e 20 63
        6e 66 67 5f 76 6d 63 5f 69 6e 70 75 74 5f 70 69
        6e 3b 20 73 70 6c 61 73 68 20 6c 6f 61 64 00 64
        69 73 70 50 61 72 6d 31 3d 31 31 30 20 31 65 30
        20 39 38 39 36 38 30 20 30 20 32 38 00 64 69 73
        70 50 61 72 6d 32 3d 31 20 31 20 31 20 31 20 33
        00 6e 75 6d 69 6e 73 74 69 6d 61 67 65 73 3d 31
        00 70 62 6f 6f 74 64 65 6c 61 79 3d 30 00 66 69
        6d 61 67 65 3d 31 00 6e 69 6d 61 67 65 73 3d 32
        00 69 6d 61 67 65 31 3d 30 78 64 30 36 32 30 30
        30 30 00 69 6d 61 67 65 32 3d 30 78 64 32 31 32
        30 30 30 30 00 66 73 73 74 61 72 74 3d 30 78 33
        30 32 30 30 30 30 00 6e 75 6d 66 69 6c 65 73 79
        73 74 65 6d 73 3d 32 00 6c 65 6e 67 74 68 66 69
        6c 65 73 79 73 74 65 6d 31 3d 30 78 34 45 45 30
        30 30 30 00 6c 65 6e 67 74 68 66 69 6c 65 73 79
        73 74 65 6d 32 3d 30 78 31 30 30 30 30 30 00 62
        6f 6f 74 63 6d 64 3d 6e 61 6e 64 20 72 65 61 64
        20 30 78 36 30 30 30 30 30 20 30 78 33 32 30 30
        30 30 20 30 78 31 30 30 30 30 3b 62 6f 6f 74 6d
        20 30 78 36 30 30 30 30 30 00 75 61 72 74 32 3d
        31 00 72 74 63 3d 31 00 70 73 3d 30 00 73 70 6c
        61 73 68 64 61 74 61 3d 30 78 64 30 31 38 30 30
        30 30 00 65 72 61 73 65 5f 65 6e 76 3d 6e 61 6e
        64 20 65 72 61 73 65 20 30 78 43 30 30 30 30 20
        30 78 34 30 30 30 30 00 73 74 6f 72 65 5f 78 6c
        6f 61 64 65 72 3d 78 6c 6f 61 64 20 30 78 38 30
        30 30 30 30 00 67 65 74 5f 78 6c 6f 61 64 5f 65
        74 68 3d 64 68 63 70 20 30 78 38 30 30 30 30 30
        20 78 6c 6f 61 64 65 72 2d 70 35 31 30 2e 62 69
        6e 3b 20 72 75 6e 20 73 74 6f 72 65 5f 78 6c 6f
        61 64 65 72 00 73 74 6f 72 65 5f 75 62 6f 6f 74
        3d 6e 61 6e 64 20 65 72 61 73 65 20 30 78 31 30
        30 30 30 30 20 24 7b 62 6c 6f 63 6b 73 69 7a 65
        7d 3b 20 6e 61 6e 64 20 77 72 69 74 65 20 30 78
        38 30 30 30 30 30 20 30 78 31 30 30 30 30 30 20
        24 7b 62 6c 6f 63 6b 73 69 7a 65 7d 00 67 65 74
        5f 75 62 6f 6f 74 5f 65 74 68 3d 64 68 63 70 20
        30 78 38 30 30 30 30 30 20 75 2d 62 6f 6f 74 2d
        70 35 31 30 2e 62 69 6e 3b 72 75 6e 20 73 74 6f
        72 65 5f 75 62 6f 6f 74 00 73 74 6f 72 65 5f 70
        62 6f 6f 74 3d 6e 61 6e 64 20 65 72 61 73 65 20
        30 78 33 32 30 30 30 30 20 24 7b 62 6c 6f 63 6b
        73 69 7a 65 7d 3b 20 6e 61 6e 64 20 77 72 69 74
        65 20 30 78 38 30 30 30 30 30 20 30 78 33 32 30
        30 30 30 20 24 7b 62 6c 6f 63 6b 73 69 7a 65 7d
        00 67 65 74 5f 70 62 6f 6f 74 5f 65 74 68 3d 64
        68 63 70 20 30 78 38 30 30 30 30 30 20 70 62 6f
        6f 74 2e 62 69 6e 3b 72 75 6e 20 73 74 6f 72 65
        5f 70 62 6f 6f 74 00 66 6c 61 73 68 5f 6e 6b 62
        69 6e 3d 64 68 63 70 20 30 78 34 30 30 30 30 30
        30 20 6e 6b 2e 62 69 6e 3b 6e 61 6e 64 20 65 72
        61 73 65 20 30 78 30 30 36 32 30 30 30 30 20 24
        7b 62 6c 6f 63 6b 73 69 7a 65 7d 3b 6e 61 6e 64
        20 77 72 69 74 65 20 30 78 34 30 30 30 30 30 30
        20 30 78 30 30 36 32 30 30 30 30 20 24 7b 62 6c
        6f 63 6b 73 69 7a 65 7d 00 75 73 62 74 74 79 3d
        63 64 63 5f 61 63 6d 00 65 74 68 61 64 64 72 3d
        38 30 3a 30 39 3a 30 32 3a 30 65 3a 37 61 3a 34
        66 00 73 65 72 69 61 6c 6e 75 6d 3d 4d 59 39 39
        39 39 39 39 39 39 00 76 65 72 69 66 79 3d 6e 00
        73 74 64 69 6e 3d 73 65 72 69 61 6c 00 73 74 64
        6f 75 74 3d 73 65 72 69 61 6c 00 73 74 64 65 72
        72 3d 73 65 72 69 61 6c 00 69 70 61 64 64 72 3d
        31 39 32 2e 31 36 38 2e 31 2e 31 37 39 00 67 75
        69 64 3d 7b 36 31 33 34 31 65 39 65 2d 61 66 33
        36 2d 62 33 34 37 2d 61 65 30 35 2d 33 61 34 30
        34 63 32 63 64 39 63 30 7d 00 73 65 72 76 65 72
        69 70 3d 30 30 30 2e 30 30 30 2e 30 30 30 2e 30
        30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
OOB:
        ff ff ff ff ff ff ff ff
        c7 c0 61 e7 00 4e 80 95
        ff ff ff ff ff ff ff ff
        ac 3e 59 ad 00 97 90 a1
        ff ff ff ff ff ff ff ff
        fe 04 f8 c7 00 d4 30 11
        ff ff ff ff ff ff ff ff
        ef 5d 4b a1 00 d7 80 8b
--- End code ---

--- End quote ---

Still same error during boot-up too?

Just FYI, the function that verifies the data in PBOOT appears to look at the spare areas on at least the first 8 pages before deciding the block is bad. So the issue is not necessarily the first page.
analogRF:

--- Quote from: ElectronMan on July 30, 2023, 10:08:28 pm ---
--- Quote from: analogRF on July 30, 2023, 10:01:01 pm ---dont you need to erase nand before writing to it?
or since it is empty that's fine, right?

but eventually if I want to re-write into the non empty areas i have to do erase first, right?

--- End quote ---

Correct. Erasing can sometimes fix issues that you could otherwise still run into. But I'd hold off on that.

My pages also have all 0xff spares for both all 0x00 and 0xFF pages.

--- End quote ---

hmmmm....for all 000 pages I dont get all FF for OOB...there are numbers in it...but for all FF pages I get all FF oob

i just rebooted the unit and the sector at 0x1c0 (=0xE0000) still shows invalid
analogRF:
for instance this is the dump of a page which is all 0x00
all others 0x00 filled pages look identical


--- Code: ---p510> nand dump 0xc0800
nand_dump len: 2048, ooblen 64, off 0xc0800
Page 000c0800 dump:
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
        00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
OOB:
        ff ff ff ff ff ff ff ff
        ef 5d 4b a1 00 d7 80 8b
        ff ff ff ff ff ff ff ff
        ef 5d 4b a1 00 d7 80 8b
        ff ff ff ff ff ff ff ff
        ef 5d 4b a1 00 d7 80 8b
        ff ff ff ff ff ff ff ff
        ef 5d 4b a1 00 d7 80 8b
--- End code ---
analogRF:
still I am pretty sure the whole 128MB of NAND is not bad and I am not even sure the 0xC0000 area is bad either.

perhaps there is still a problem with the pboot itself or it is reading its parameters from somewhere else , not from 0xc0000
analogRF:
these front panels (used is many Keysight instruments) are very well known to have bad CPU (SPear320)
I have personally replaced 4 of them in multimeters and 33600 function generators

so maybe mine has a slightly defective nand controller in it....but the meter was manufactured in Nov 2019 and its warranty ended in Dec 1. 2022  |O |O

it has been sitting off on the bench for 4-5 month and now suddenly this?  :palm: :palm:

is there any service note or extended warranty for this nand corruption issue similar to what was available for 3000A scopes?

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