Testcode including frame grab of an image

[cabbagecreek]

There is no testcode for grabbing a frame and convert it to a image.

Is this possible to add?

[daniel-santos]

It is somewhat traditional for the requester of a feature to be tasked with writing it. :) However, this is the basic SPI sequence that I used a few years ago:

# send 0x92 0x93 and ignore the output
sleep 0.01s
#send  0x92 0xc5 and ignore the output
sleep 0.1s
# send  0x02 0x00 and ignore the output
sleep 0.1s
# send 0x64 followed by 0x00 repeated 900 times and capture the output
# strip the first byte:
dd if=out.dat of=img.dat bs=1 skip=1 count=900

Finally, there is another step to convert it to a png, but I'm not sure what I did with that code since it's been a few years. However, these are really just platform-generic instructions.