I am currently working with the MSP430FR2422 microcontroller, which has a total of 18 pins. It features two SPI interfaces: UC0A and UC0B.
My requirements are as follows:
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I want to interface a sensor with one of the SPI interfaces.
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I need a reference output voltage from the microcontroller (available on P1.1).
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I want to program the microcontroller through JTAG.
I am confused about which SPI interface to use because, in UC0B, one of the pins is used as VREF, while in UC0A, the same pins are used for JTAG.
Is there any alternative for this?