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F5529 USB HID Data Transfer Question

Ryan G13822
Prodigy 40 points
Other Parts Discussed in Thread: MSP430F5529

 I recently aquired a MSP430F5529 target board and got the FET also.  I have most all of the demo programs working great.  The one question I have is about using the USB HID Example 5 program in CCE.  I get the MCU to send the RAM perfectly over the USB with the HID, but I would like to be able to send the flash memory also.  Is there a tiny modification I could make to the code so it sends the Flash memory instead of the RAM?

Also, would I be able to utilize the flash memory for ADC value storage if my board was run solely off of 3.3V?  I would like to use the large amount of flash memory the chip has for data logging and then be able to send it all to a PC upon connecting the USB.  I've only been dealing with MCU's for a few months so any help is appreciated.

Thanks in adance.

  • 0
    Expert 1655 points

    Hi Ryan,

    I'm still waiting for the target board so I could not get hands on the new USB MSP430 devices so far, but I will give my best o answer your questions.

    Yes, you can use the on-chip flash for you data logging application (you can program the flash at 1.8V <= Vcc <= 3.6V), but I recommend reading through this application note MSP430 Flash Memory Characteristics (Rev. A) (slaa334a.pdf). The HDI package comes with handlers for sending/receiving data which were using pointers to point to the data to be transmitted. So it should be no problem to point to a location in flash-memory instead.

    Rgds
    G**kbuster 

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