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MSP430F4152: Serial Protocol

Max Pom
Intellectual 360 points
Part Number: MSP430F4152


Hi,

I'm using the M430F5438A Device.

The design includes registers, which I would like to access (read/write) from outside.

I already used all the dedicated pins used for communication (I2C/SPI/UART).

Is there any way to use the SPY-BI interface (whiche is being used for confuguration) as a serial interface (to read/write the registers..)?

Furthermore, is there a way (like "soft IP" / a code which emulate SPI/I2C/UART etc.) to be used with regular GPIO pins (also, to read/write the registers..)?

Thanks a lot!

Max

  • 0
    TI__Guru 56685 points

    Hello Max,

    The 2-wire SBW interface is time spliced 4-wired JTAG, so it cannot be converted to a typical serial interface. You could certainly write a serial interface with specific commands to look at or change specific registers, but application code does not have access the onboard emulation block (EEM) that the JTAG uses for full debug control. 

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