Am Freitag, den 28.05.2010, 20:14 +0200 schrieb Néstor a.k.a. DarkMan:
Hi, I tried an ASD 29F2008 part and is recognized as a Winbond W29C020C.
This is not surprising. ASD (at least at that time) sold relabeled parts from other vendors. Maybe also 2nd source manufacturing.
It fails at erase operation. How can I help to support the device?
It's not a problem of the flash chip, but...
Motherboard: Shuttle AV11V30
... of the mainboard, or the BIOS code. Your flash chip has an optional boot block protection mode. If that mode is active, programming in the boot block and, this is what you observe, the chip erase instruction (which would also erase the boot block) is ignored by the flash chip. This also applies to the vendor flash tool, so please check that you don't have flashing disabled by a jumper or a setup option.
Regards, Michael Karcher