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MSP430FR5964: Response when "RX Password" command is sent

O.H
Genius 5645 points
Part Number: MSP430FR5964

Hi experts,

Could you tell me how the MSP430FR5964 works when writing BSL?

Q1:Is the parity bit assigned to the 0x00 or 0xFF response "Command Returns" in the "4.1.5.2 RX Password" section of the MSP430FRAM Devices Bootloader (BSL) User's Guide (Slau550z.pdf)?

A parity error is currently occurring on the source CPU when the wrong password is sent.
"3.1. 1 UART BSL" states that even parity is assigned.
However, "Command Returns" states that "The MSP430FR5xx and MSP430FR6xx bootloader does not send the BSL core response for the incorrect password.".
So, I think the result is a parity error on the source CPU.

Best Regards,
O.H

  • 0
    TI__Mastermind 28426 points

    Hi O.H,

    Have you encountered any problems about BSL?

    Best Regards

    Johnson

  • 0 in reply to Johnson He
    Genius 5645 points

    Hi Johnson,

    Thank you for your reply.

    The host CPU is currently experiencing a parity error when the wrong password is sent.

    The first thing I want to know is whether in the case of the MSP430FR5964, the Command Returns(0x00 or 0xFF) returned in response to the wrong password being sent has a parity bit.

    Next, it says "The MSP430FR5xx and MSP430FR6xx bootloader does not send the BSL core response for the incorrect password.", but do you think it affects parity errors on the host CPU?

    Best Reagrds,
    O.H

  • 0 in reply to O.H
    TI__Mastermind 28426 points

    Hi O.H

    For FR5xx and FR6xx, when the sent BSL password is wrong, the MCU does not echo any data, so our document may write 0x00 or 0xFF. Therefore, there is no parity bit, this data is not sent by the MCU(This data may be affected by I/O, etc.).

    So you can think that if the password is wrong, there will be no operation on the MCU side.But if the password is correct, there will be a corresponding return value.

    By the way,  Where do you plan to use this return value? Can you provide your detailed requirements? This will help us provide better technical support.

    Best Regards

    Johnson

  • 0 in reply to Johnson He
    Genius 5645 points

    Hi Johnson,

    I am sorry for the late reply.

    My customer seemed to be concerned about whether the parity bit would be added to the BSL response, so they were once satisfied with the answer above.

    Thank you for your kind support!

    Best Regards,
    O.H

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