Hi Adam,

Partial reads are not currently supported in upstream (even with a layout file), but they are supported in the ChromiumOS branch: https://chromium.googlesource.com/chromiumos/third_party/flashrom

Basically what you'll need to do is:

1. Make sure your chip is supported (in flashchips.c).

2. Create a layout file ('echo "start:end name" >> layout.txt')

3. flashrom -p dediprog -r -l layout.txt -i name:name.bin

For example, if your start and end are 000:fff and the name is "bottom_4k", the command `flashrom -p dediprog -r -l layout.txt -i bottom_4k:bottom_4k.bin` will read 4K from 0x000000-0x000fff and write it to a file called bottom_4k.bin.

HTH!

On Wed, May 27, 2015 at 7:32 PM, Adam Duncan <adam.duncan@gmail.com> wrote:

Hi,

I am trying to read a specific address range of a chip using the partial read feature in flashrom .9.7 using a dediprog or buspirate. Is there a command line argument to specify the addresses you would like to read from?

Thanks!

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David Hendricks (dhendrix)
Systems Software Engineer, Google Inc.