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MSP430FR5739 out of memory

Silver Diamond
Genius 4010 points

Other Parts Discussed in Thread: MSP430FR5739

Hello,

I am running out of memory on the MSP430FR5739.  Can I add external memory to store data?  Also I am little worried since my code size is over 10K but the FR series does not have uC on the market with over 16K of memory.  What would be next logical choice for me?  Wish Wolverine was a released product.

  • 0
    Guru 34973 points

    And why you are using FR at all? Of course, you can use external SPI/I2C flash/FR device, but why?

  • 0 in reply to zrno soli
    Genius 4010 points

    Why not, its cool! JK, actually, it can live on almost nothing, I am running an event based program at 24mhz at 2.3V.  So it only runs when something needs to be done and completes that task very quickly and goes back to sleep.  Some of my tasks are process intensive but need to be done quickly before next byte comes.  I can harvest tiny bit of energy and live from capacitor.  Also, I can talk to 1.8V CMOS logic at full speed without any level translation that wastes power.

    Is there a low power external flash that can go to sleep?

  • 0 in reply to Silver Diamond
    Guru 34973 points

    If you need extra memory chip, than it's not cool. Also, if you want to store big amount of data, it can be used SD card.

    http://adestotech.com

  • 0
    Guru 227245 points

    Silver Diamond said:
    Can I add external memory to store data?

    The MSPs, liek almsot all microcontrollers, offer various ways to interface with the outside world. Including external storage like SD cards (SPI interface) or EEprom chips (often I2C interface) etc. You may even attach an HD drive if you have enough I/O pins to physically interface it.
    But the MSPs have no externally available address/data bus. So you cannot extend the memory in which code can be executed. All data storage is to be done by writing/reading data to/from external devices, putting it into the limited local memory and then work on it.

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