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MSP430F249: MSP430F249 memory expansion

tharuvani narendar
Prodigy 40 points

Part Number: MSP430F249
Other Parts Discussed in Thread: MSP430F2419

Hello.........

Can I expand  the programmable flash memory size of msp430f249 from 60kb  to some extent.( say 80kb or more ).

Is it possible to do so ?

If yes , HOW ?

  • 0
    TI__Genius 17960 points
    Hello Tharuvani,
    I am not sure whether I understand your question properly, but with any MSP430 you can use just the memory, which is specified in the datasheet of the given device. The only option, if more memory than specified is needed, is the migration to a compatible device with bigger memory, or to use an external memory, connected through some kind of interface. But this is usually especially when used for additional code portions very tricky, as the MSP430 is not designed to operate with external program memory out of the box.

    Best regards
    Peter
  • 0 in reply to Peter Spevak
    Prodigy 40 points
    Thank you so much for your valuable reply.
    Can you please suggest me the compatible device with bigger memory, i.e., of 120kb, 4kb RAM, and remaining features same as msp430f249. (package, i/o's, 16-bit etc..,)
  • 0 in reply to tharuvani narendar
    TI__Genius 17960 points

    Hello Tharuvani,
    probably the best fit, being the closest to the MSP430F249 is the MSP430F2419. It is available in the same package, offers the same feature set, but 120kB FLASH and 4KB RAM. As far as I can see fully pin compatible. One thing you need to keep in mind, due to the 120kB code memory, it has a 20Bit CPU, to avoid paging (linear address range maintained). This means it offers a few additional instructions, but the instruction set is a super set of the 16Bit MSP430 devices. Thus the code differences, if any will be minor, especially when you're writing code in C and not in assembler, basically most of the things will be fully transparent for you.
    For further details, please see the device datasheet and the User's Guide.

    Best regards
    Peter

  • 0 in reply to Peter Spevak
    Prodigy 40 points
    Thank you for suggesting msp430f2419 , it has same feature set of msp430f249. I'll go with it.
  • 0 in reply to tharuvani narendar
    TI__Genius 17960 points
    Thank you for the information. Thus I assume your question is sufficiently answered. In this case it would be nice, if you would close the thread by clicking "Resolved..."

    Best regards
    Peter
  • 0 in reply to Peter Spevak
    Prodigy 40 points

    how can i get samples of msp430f2419 from TI.

    it is showing limit the cart to 0 items, even  i request samples from company mail address.

    How can i get samples now from TI ?

    what is the solution for cart limit to 0 ?

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