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USB protocols over SPI, I2C, Serial?

wallarug

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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  • Software that would do this was readily available in the early days of PCs but since even full speed USB is 100x faster ( and high speed is 4000x faster, super speed 40000x faster and super speed+ 80000x faster) no one bothers with it now !

    (I remember Laplink which was sold as software with cables and coudl link PCs by serial port or parallel port)

     

    It would be easy enough to write some code for the Arduino (or other micro) and Pi to copy the data to the Pi, much harder to make it look like a drive to the Pi.

     

    MK

  • in reply to michaelkellett

    I remember using the Kermit protocol http://www.kermitproject.org/kermit.html to transfer files over early cellular modems, doing data downloads and remote software updates on VME based systems.... whilst probably regarded as obsolete, we learnt a lot both using that and later implementing the protocol on newer devices, and it’s a lot easier to implement a simple RS-232 port on a micro controller than a USB stack (although the irony of course is you’d probably use a USB to serial converter on your PC).

     

    A

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