[flashrom] [PATCH] Dediprog SF100 support

Carl-Daniel Hailfinger c-d.hailfinger.devel.2006 at gmx.net
Sat Jan 16 06:48:41 CET 2010

Good news:
I decoded a few more commands.
The v2 and v3 firmware seem to have identical commands.

Bad news:
Some things are done internally by the programmer (namely, big reads and
writes) and it seems you can't influence the actual SPI commands for that.
It is unclear whether commands bigger than 4 bytes can be sent (i.e.
It is unclear whether more than 4 bytes of chip response can be read.
Some commands are still totally undecoded (one is probably IDLE and
another one RESET, but that's pretty much speculation).

I know how to test my assumptions, though.

AFAIK the Dediprog can do "fast" (partial) writes. A log from such a
partial write (i.e. zero out some area that was 0xff before) would clear
up a lot of stuff.

Separate logs from ID/read with changed frequencies (one log per
frequency) would help as well.

What else can be set? Voltage? Timing? Other stuff?


Developer quote of the year:
"We are juggling too many chainsaws and flaming arrows and tigers."

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