Could you give me a hint how to encapsulate such "SD Card on/off funtionality" into functions and make them usable in CHDK?
But is Canon all the time examining if the Card is present?
If a JPG has been written to the Card after shooting and then the card would have somehow been disconnected while downloading the images, then be reconnnected, do you think Canons OS would recognize such a shortly "offlined" card?
Quote from: Karmaschinken on 20 / December / 2013, 11:11:20But is Canon all the time examining if the Card is present?The firmware checks every part of the process, any unexpected behaviour will be treated as an error condition.
Well, I could answer that myself: I tried with a micro-sd to sd adapter. I started the camera with the micro sd card in it, then, while the camera being on, removed the micro-sd-card. No error, everything ok. After putting the card back into the adapter I could shoot!
My idea is that maybe one could download from multiple cameras at the same time, because the cards could be mapped as drives. This would be in contrast to use PTP, which - as far as I understood - only allows to download from the cameras one after one. Is that right?
This thread http://chdk.setepontos.com/index.php?topic=5563.0 has some discussion of the "sd power" mmio mentioned by waterwingzThe last testing I did with that was somewhat inconclusive, but there are eventprocs so it's easy to play with.
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