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Original question:

MSP430 as USB host

MSP430F5659: My processor as USB host.. How can I do it?

Maria Angela Cianci
Intellectual 290 points
Part Number: MSP430F5659


Good Morning TI experts!

I have a very important question I want to bring to your attention today.

Since I understand that MSP430 processors with on board USB can act only as USB devices due to hardware limitation, I would like to know if in the great variety of external components  and expansions there are any devices which, linked to my processor, make me able to configure it as a USB host.

Any advice and help would be really appreciated!

My Best Regards,

Maria Angela

  • 0
    Guru 34753 points
    No, MSP430 with internal USB hardware module can be only used as USB device.

    Yes, you can use another microcontroller with internal USB hardware module, that have host/device possibility and than link it with UART/I2C/SPI to your MSP430 device, but I don't see any point in this, because all job can be done by host/device microcontroller without MSP430. Search Mouser or any distributor you prefer for low-power micros that have USB host/device possibility. And for the price of MSP430F5659 you can find lot of them in the ARM-Cortex world.
  • 0
    Intellectual 475 points

    Hi Maria Angela,

    such solutions exist, but I don't know any from TI. Example: MAX3421E  

    BR

    Christoph

  • 0 in reply to Christoph Schweers
    Guru 34753 points

    This part Mouser price is 7€ (@25) and (AFAIK) user must write USB stack from zero.

    EDIT: OK, there are some open source examples for using it as host, but I still prefer Cortex-M4 with Host/Device USB (and open source examples) for half of that price.

  • 0
    TI__Genius 14775 points
    As stated previously,

    None of the MSP430 micro-controllers with a USB module, or linked modules, have the ability to be a host. If you find an MCU that itself has USB host capabilities and still need an ultra-low power co-processor MCU to control certain aspects of your application then there is a wide array of TI MSP430 devices to choose from.

    Best regards,

    Matt
  • 0 in reply to Matt Calvo
    Intellectual 290 points

    Good morning everybody!

    First of all thank you very much for your replies.

    You provide me a full and clear picture of the situation.

    Best Regards,

    Maria Angela

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