How to deal with SPI pins when EEPROM is not used in HX2LP designs – KBA222123

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Question:

How to deal with SPI pins when EEPROM is not used in HX2LP designs?

 

Answer:


When SPI EEPROM is not used, SPI_CS and SPI_SCK could be floating but SPI_SD should be connected to GROUND with a 15 k resistor. Otherwise, HX2LP will not enumerate normally.