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MSP430F5359 to replace MSP430F5438A

RAFAEL MARIN
Prodigy 175 points

Other Parts Discussed in Thread: MSP430F5438A, MSP430F5359, MSP430F5659

Dear TI community,


I am working in a Spanish university and would like to replace the current msp430f5438a of our developments for a more powerful micro which is compatible with the software of the msp430f5438a.

I have seen that the msp430f5359 is an good alternative because it has 66KB RAM and 512KB Flash. Moreover, it belongs to the same family msp430f5xxx and has the same BSL via UART.

However, the distributers of MSP430 micros have few units of msp430f5359, only near 260 units. Why??

Is the msp430f5359 obsolete?  is there another better alternative micro?

Thank you in advance for your help!!

Best regards, Rafa.

  • 0
    Expert 2665 points

    > Is the msp430f5359 obsolete?

    SA: No way! It is brand new part, top of the range. For the status, see http://www.ti.com/product/msp430f5359/samplebuy It is marked as 'ACTIVE'.

    >  Is there another better alternative micro?

    SA: MSP430F5659, which is from the same family. It has USB on board. Much more convenient than UART. You may decide one day to switch to USB, so this part would be handy. It is available 'In Stock' in quantities > 1K...5K pcs. See http://www.ti.com/product/MSP430F5659/samplebuy

  • 0 in reply to Serge A
    Prodigy 175 points

    Serge A said:

    > Is the msp430f5359 obsolete?

    SA: No way! It is brand new part, top of the range. For the status, see http://www.ti.com/product/msp430f5359/samplebuy It is marked as 'ACTIVE'.

    I have visited this web and there is only one distributor with 252 units in Stock. If the product is 'ACTIVE', is mean that TI company manufacture more units in the next weeks?

    >  Is there another better alternative micro?

    SA: MSP430F5659, which is from the same family. It has USB on board. Much more convenient than UART. You may decide one day to switch to USB, so this part would be handy. It is available 'In Stock' in quantities > 1K...5K pcs. See http://www.ti.com/product/MSP430F5659/samplebuy

    This is a good alternative but I am working in Linux with mspdebug which is only support msp430s with UART BSL.
    Best regards, Rafa.

  • 0 in reply to RAFAEL MARIN
    Expert 2665 points

    You can replace factory supplied USB BSL with UART BSL on-board using JTAG pins. The process should be similar as described here: http://e2e.ti.com/support/microcontrollers/msp430/f/166/t/161724.aspx

    Both UART BSL and USB BSL binaries are available from TI, so you can choose between them.

    Shouldn't it be an option for your application?

  • 0 in reply to RAFAEL MARIN
    Guru 227245 points

    Is there a reason for using BSL under linux?

    Normally, the MSP is programmed (and debugged) using JTAG. BSL is used for field update (where a windows machine with USB BSL could be used).
    Serge is right, you can replace the BSL by an UART one, but if you don’t use JTAG, you’ll have to do it using USB BSL once.

    Besides the BSL thing, indeed, the MSPs with UART offer a more convenient way on the communication side, but programming the USB for data exchange is way more complicated than a simple UART data transfer.

    BTW: the reason why most distributors don’t have the 5359 in quantities is because it is quite new and hasn’t been ordered so much so far, so they won’t hold large quantities on stock.

  • 0 in reply to Jens-Michael Gross
    Prodigy 175 points

    Dear Jens-Michael,

    Because, I develop research applications under the Contiki operation system used Linux.

    I prefer to not include JTAG port in the board to minimize the size of board. Nowadays, our board with msp430f5438a has only one port to program and debug using the UART-BSL and UART1-Debug.

    Moreover, I use the Linux mspdebug tool which supports the UART-BSL in a simple way.

    This is interesting, maybe in the next months the distributers request more quantities of 5359 to provide the final users. If the 5359 is quite new, this mean that 5359 is not really tested and reliable?

    All the best, Rafa.
  • 0 in reply to RAFAEL MARIN
    Guru 227245 points

    RAFAEL MARIN said:
    If the 5359 is quite new, this mean that 5359 is not really tested and reliable?

    The different MSP processors are designed by re-using the modules already used (and tested) in other MSPs, However, new errata may be discovered for this specific combination. This even still happens for older MSPs.
    However, I was rather talking about market saturation, as production has only begun recently and distributors have not filled their stocks as customers haven’t ordered these parts so often yet.

  • 0 in reply to Jens-Michael Gross
    Prodigy 175 points

    Dear Jens-Michael,

    Thanks for your answer!!!  This is very useful for me.

    Best regards, Rafa.

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