USB protocols over SPI, I2C, Serial?

Hi,

I am interested in if there would be any way to access a Storage medium over a Serial Port and if anyone is familiar with any software that does this?

Example:

Current: Raspberry Pi USB Port --> Arduino M0 micro USB Port

Proposed: Raspberry Pi Serial Port (Tx/Rx) --> Arduino M0 Serial Port.

Purely interested in finding new ways to access the M0 Bootloader Storage Drive (or any other microcontroller with embedded drive) without needing to be attached to USB. Even the Pi GPIO header would be ideal.

Thanks in advance.

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genebren over 5 years ago

Not sure if this is the sort of thing you are looking for, but I have used this in a commercial product to host USB thumb drives and printers from a light weight embedded system (https://www.newark.com/ftdi/vnc2-32l1c-reel/controller-usb-vinculum-ii-32lqfp/dp/05AC9620?st=vnc2 ). This allows you to use SPI or serial to read/write on a USB thumb drive. This was a fairly simple way to access the USB drive without have to have full USB stacks running on the host.

Good luck!
Gene
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genebren over 5 years ago

Not sure if this is the sort of thing you are looking for, but I have used this in a commercial product to host USB thumb drives and printers from a light weight embedded system (https://www.newark.com/ftdi/vnc2-32l1c-reel/controller-usb-vinculum-ii-32lqfp/dp/05AC9620?st=vnc2 ). This allows you to use SPI or serial to read/write on a USB thumb drive. This was a fairly simple way to access the USB drive without have to have full USB stacks running on the host.

Good luck!
Gene
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Problemchild over 5 years ago in reply to genebren

I have a few of these I bought at a radio rally at 50p each handy if your controller is serial only but some what redundant in the modern era!
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