[flashrom] Flashrom reading/writing Pm25LV512 issue

[Stefan Tauner]

On Tue, 27 Jan 2015 22:36:03 +0200
Tudoran Mihail <mihail.tudoran at gmail.com> wrote:

> Hello,
> 
> I am encountering some issues trying to read a Pm25LV512 SPI flash from a
> small LCD monitor, really got stuck at this point.
> 
> Hardware:
> - Pm25LV512 attached to a Weltrend WT8871 video IC
> - Arduino UNO R3 with 16u2 USB<>Serial converter
> - CD4050 to convert 5v to 3v3
> - Used the schematic provided on http://flashrom.org/Serprog/Arduino_flasher
> to interface the chip
> - Tried "in-circuit" programming without removing the chip from the board
> - Wire length of less than 8cm.
> 
> Software:
> 
> - Latest serprog-duino from git
> - Tried with flashrom v0.9.6.1-r1563
> - And with flashrom v0.9.7-r1711
> - Ubuntu 14.04 64bit
> 
> I really appreciate any help I could get and can provide any info/logs
> needed.
> 

The result looks as if you are reading random data... either your
connections are wrong/bad, or the board is disturbing the communication
on the SPI bus. See also http://flashrom.org/ISP

-- 
Kind regards/Mit freundlichen Grüßen, Stefan Tauner