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MSP430FR2111: Change UART vote timing

Part Number: MSP430FR2111

Hi experts,

I want to know if the vote timing of UART can be changed.

My customer uses the MSP430 UART with Slave.
When they receive data from the master, they get a waveform like this:

Due to a problem on the master side, the high time of the data is shortened.
Therefore, UART RX error occurs frequently.

Since the waveform on the master side cannot be changed, they want to change to the vote timing of the red arrow as shown below.
Is this possible?

This is a master issue, so can't it be improved without fixing the master?

Best regards,
Sasaki

  • The short answer is no, the timing is fixed in hardware.

    You could perhaps tinker around the edges a bit by playing with the baudrate generator settings. Introducing errors that push the sampling times where you want them. But that would be tricky and probably not very robust.

    I am struck by the labels on your data plots. Is this really an I2C signal or were those labels of convenience?

  • David-san,

    Thank you for your answer.
    I understand that it is tricky to take measures in the baud rate generator settings.
    This waveform is an excel drawing of the customer's waveform.

    Best regards,
    Sasaki

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