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MSP430FR5738 loses memory

Morten Mosgaard10
Prodigy 10 points
Other Parts Discussed in Thread: MSP430FR5738

Hi,

I have a small board with the MSP430FR5738 MCU. Sometimes it suddenly loses the program memory and if I try to read the contents it is often all 0xFF or 0x00.

Then I have to program it from scratch. Does anyone else have the same problems and do anyone know a solution?

BR,

Morten Mosgaard

  • 0
    TI__Guru**** 202106 points
    Hi Morten,

    Please describe this issue in further detail. Can this be repeated on a TI-provided EVM or does it only occur on your custom board? How often does the MSP430 lose memory and how easy is it to re-create the problem? What type of FET tool is being used to communicate with the device, and what program is used to read out device memory? Is BSL ever accessed during your application?

    It is very important that peak reflow temperatures are never exceeded on MSP430FR57xx devices as this could affect FRAM data retention, please refer to Section 2.2.2 of the MSP430 FRAM Quality and Reliability Application Report (SLAA526): www.ti.com/.../slaa526a.pdf

    Regards,
    Ryan

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