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MSP432P401R: MSP432 BSL

Kavan Acharya
Intellectual 685 points

Part Number: MSP432P401R

I have referred following link for MSP432 OAD solution

http://dev.ti.com/tirex/content/simplelink_msp432_sdk_bluetooth_plugin_1_20_00_42/docs/users_guide_simplelink_msp432_sdk_plugin.html

1. My Setup is MSP432P401 connected to CC2650MA via UART lines.

 

2. I need to do firmware update of MSP432P401R. The New Firmware is already present in the external flash connected to CC2650MA.

 

3. This New Image will be sent via UART to MSP432P401R.

 

Is there any sample code or document where I can understand the procedure to write this image to Flash using BSL.

I have already seen bluetooth plugin example.  

  • 0
    TI__Mastermind 25045 points

    Hello,

    Kavan Acharya said:
    . I need to do firmware update of MSP432P401R. The New Firmware is already present in the external flash connected to CC2650MA

    Which external flash did you mount on the CC2650MA?

    Kavan Acharya said:
    3. This New Image will be sent via UART to MSP432P401R.

    Why the new image will be send via UART? If I'm not mistaken the external flash SPI signals (including CS) are mapped to the booster pack headers, therefore the MSP432 could use the EUSCI_B0 to access the serial flash. What I'm trying to say is that the boot loader available in the OAD example can access the external flash and then update the MSP432.

    Currently the OAD boot loader is assuming that the "new image" was stored internally, so you will need to modify it to access the external flash instead. I'm working on a boot loader example that use the external flash available in the LAUNCHXL-CC2640R2 (SPI - Macronix MX25R8035F), I'll try to complete by end of this week, please let me know if this timing could work for you.

       Best regards,

        David

  • 0 in reply to DavidL
    Intellectual 685 points
    Thanks David for the Reply,

    We are using Winbonds W25X40CLUXIG External Flash.

    Ours is a custom board in which SPI signals mapped to booster pack header is not used for external flash.
  • 0 in reply to Kavan Acharya
    TI__Mastermind 25045 points
    Hello,

    Thanks for the clarification. So if that is the case unfortunately we do not have an example where the SNP (simple Network Processor) can read from external flash and send this information to the MSP432 through the UART interface.

    I'm looping in an Apps Engineer from the Bluetooth Low Energy Team to see if they have an example for this use case.

    Best regards,

    David

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