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Original question:

MSP430F5527: Porting USB2ANY firmware to MSP430F5527

MSP430F5527: MSP430F5527

Satya Prakash Singh1
Prodigy 10 points
Part Number: MSP430F5527
Other Parts Discussed in Thread: MSP430F5529,

Hi,

We had been using msp430f5529 in one of our pcb. now due to long lead time of msp430f5529. we are porting to msp430f5527 everything is the same except memory size but it is working unexpectedly. what is going wrong. kindly guide us if there is any further modification is needed in firmware other than recompilation.

Thank You!

  • +1
    Guru 99455 points

    Can you elaborate on "unexpectedly"? (Fails on startup? Crashes? Timing not right?)

    1) I suppose(?) you changed the MCU name (Build Settings->General->Variant), which switches the linker .cmd and some define-s.

    2) Make sure you're always including <msp430.h> not <msp430f5529.h>.

    3) If you use a lot of stack+heap you could have had (hidden) stack overflows that are now showing up with the smaller memory.

  • 0 in reply to Bruce McKenney
    Prodigy 10 points

    Thanks Bruce problem is now resolved it was due to stack overflow as RAM is less in msp430f5527. Thank You for quick response.

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