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TRF7964A: SPI communication miso data level

Part Number: TRF7964A
Other Parts Discussed in Thread: MSP430F2370

Hello,

I am designing an RFID reader using MSP430F2370 and TRF7964.

Now I can manipulate the registers of the trf7964, but when I read from the registers of the trf7964, the level of the miso data line is not accurate.

When the miso level is low, the mcu cannot read the data of the trf7964 register.

Why is this happening, please help me solve it.

Thank you.