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RASPBERRY PI PICO DEVICE MSC INCREASE SIZE

gabofienco
Hello all,
I am working in a project where I plan to use rp2040 tiny usb device to store some files greater than 5MB in a SDCARD.
My question is.. any ideas how to make the MSC device to point to the address or path generate by rp2040 to the SDCARD??. and if not possible to change the pointing address will be good to know too.
Or how to make the device MSC to look with a size of 128MB in windows just like it does when it is in boot mode?
I had used these references, but I still can't have a good mounted device with a bigger size that is not overflowing flash/ram.
Thanks for your time.
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  • the easiest way to get a bigger storage volume as MSC device might be to just use a bigger Flash chip, I don´t know about the limitations in size(if there are any) for the Rp2040.
    if you still want to use an SD card in addition to it then you can connect that as well and copy files between SD and Flash as needed.
    I'm not aware of any method that allows to point the MSC device to any other storage than the Flash default, but maybe someone else knows.

  • in reply to mayermakes

    Providing data from other memory is of course possible. At least you can reimplement MSC USB packets handling manually and implement it in whatever way you want. But it requires lot of skils with USB.

  • in reply to misaz

    Yes, exactly that is what I plan to do, but my files are really big, so.. my only problem right now is to make it look like a 128MB mass storage (just like the system in boot mode when you load the uf2 file).... then redirect that data to SDcard will be ok, I already debug and know where data is being receive.... but getting a bigger size to copy/paste my files is my little problem haha

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  • in reply to misaz

    Yes, exactly that is what I plan to do, but my files are really big, so.. my only problem right now is to make it look like a 128MB mass storage (just like the system in boot mode when you load the uf2 file).... then redirect that data to SDcard will be ok, I already debug and know where data is being receive.... but getting a bigger size to copy/paste my files is my little problem haha

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