[flashrom] MX25L1605DM2I-12G with Buspirate
Idwer Vollering
vidwer at gmail.com
Thu Nov 29 13:20:12 CET 2012
2012/11/29 Daniel . <phl3ckz at googlemail.com>:
> Hi everyone,
>
> I am absolute beginner but I need to read and write the above mentioned
> serial Flash memory.
>
> This is a BIOS chip and had a bad flash. Now it is unsoldered from
> mainboard.
How do you connect the buspirate to the chip and what is the chip's
form factor (e.g. soic8)? The datasheet mentions SOP/WSON/PDIP.
> I want read it out and reflash a new BIOS file.
>
> Therefore I really need help how to connect the chip pins with the buspirate
> pins in a correct way.
>
> This is how pins are shown in the data sheet of Macronix MX25L1605DM2I-12G
>
> CS# 1 8 VCC
> SO/SIO1 2 7 HOLD#
> WP#ACC 3 6 SCLK
> GND 4 5 SI/SIO0
http://dangerousprototypes.com/docs/Bus_Pirate_I/O_Pin_Descriptions
This is how I connect my buspirate to a MX25L1605A soic8 chip:
CS# (CS) [1 8] VCC (bridge with buspirate pin 3+7)
SO (MISO) [2 7] HOLD # (+3V3)
WP# (bridge with buspirate pin 7+8) [3 6] SCLK (CLK)
GND (GND) [4 5] SI (MOSI)
>
> I am using Bus Pirate v3.5 with FW v6.2-beta1 r1981 BL v4.4 and flashrom
> v0.9.6.1-r1624 on Windows.
HiZ>i
Bus Pirate v3.a
Firmware v6.2-beta1 r1981 Bootloader v4.4
>
> Would I have to setup the buspirate in a terminal before using flashrom? I
> mean SPI mode and so on? If yes could someone help me with this settings
> too?
It's not necessary to change modes (no need to change from HiZ to SPI).
>
> Thanks!
>
> Best regards,
> Daniel
>
>
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