Macronix MX29LV800CBTC-90G programming problem

[fefeeee86]

Hello!

I have a Macronix MX29LV800CBTC-90G cmos flash memory. I built a tsop48 adapter for it, solded a chip onto it. Willem eprom reads out the code, but it can`t erase, or program it. When i click erase, it just says erased. When I try to prgram, an error occured.

Please help! Thx

[Ezo]

Run Blank check after erase. If it fail run Read and check buffer.
What adress area is unerased (all chip, or part of beginning) ?
Try erase and programming with activ SW option Temporary Sector Unprotect , no changes required on tsop48b2.

[fefeeee86]

The erase procedure is taking about 0.5 s. Blank test failed. All part of the chip is unerased. I tried the unprotect sector on/off. Same. What device id do i need to get @ electronic id? On tsop48b2 there are jumpers. what are the options for it?

[Ezo]

Usually erase is fast.
Is any other tsop48 chip programmed before ? Is programmer tested in Test H/W mode (read guides)
------

What device id do i need to get @ electronic id? On tsop48b2 there are jumpers. what are the options for it?

For your chip apply SW 0.97ja, selected 3.3V 29LV800
Jumpers Jp2,Jp5. No jumpers on tsop48b2
Expect Get ID reply 0xC2 MXIC 0x5B MX29LV800B
Have you got it ?
Recheck chip pin soldering on adapter (magnifier, light)

[fefeeee86]

The programmer was used before, but it wasn`t tsop48. I checked the adapters soldig, there was a little short in the circuit. Now, I checked every signal, it`s fine. But now, when I try to erase, it takes >400 s, and at the end chip erase failed. I got ID 0X02, 0X02. Maybe the chip is already dead? :S Or the main programmer chips are dead already? Here I haven`t got multimeter to test the circuit. :S

[Ezo]

Recheck again solderings, adapter lines.
I think chip should be OK.

[fefeeee86]

Nothing!

Now I got ID : 0X00, 0X00

:S

[fefeeee86]

Hi again!

My previous chip was fully dead. I requested some new sample chips from Macronix. Now, I put the things together, started the software, checked the ID, I got 0xFF, 0xFF. Reading ok, Its empty, Blank test ok. When I readed out the flash chip, then clicked on the programming, it started to program (the nothing), programmed, veryfied, ok. But when I try to load and program the bios file, I got an error, Error at 0x000000 Chip = 0xFF buffer = 0x02
It`s an amilo pro v3405 bios file, it`s 1,030 KB, and it`s extension is WPH.

Any idea?
Thanks