AD5755-1 SPI communication problem

Hello,

I am trying to run AD5755-1 evaluation board using SPI communication via on-board J11 pin. 

I have a board supports SPI communication.

The board has SPI header (please check the attached image) but I don't know how to correctly connect SPI header and on-board J11 pin of AD5755-1 evaluation board.

As I know, 4-wire is needed for SPI communication, MOSI, MISO, SCK, and SS.

What pin of the on-board J11 should be connected to each wire? 

Also, I would appreciate it if you let me know the detail description for each pin of on-board J11 pin (DV_DD, DGND, SYNC, SCLK, SDIN, SDO, LDAC, etc.).

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  • Hi younjaeng,

    Kindly see the following connections that you can make from your SPI board to J11 of the AD5755-1 board.

    SPI Board ---> J11

    GND--->DGND

    SS0--->SYNC

    SCK--->SCLK

    MOSI--->SDIN

    MISO--->SDO

    GPIOB0--->LDAC

    GPIOB1--->CLEAR

    GPIOB2--->POC

    GPIOB3--->RESETB

    GPIOB4--->FAULTB

    GPIOB5--->ALERT 

    For DVDD on J11, you can connect an external supply to provide power to this pin.

    Best regards,

    Rainier

Reply
  • Hi younjaeng,

    Kindly see the following connections that you can make from your SPI board to J11 of the AD5755-1 board.

    SPI Board ---> J11

    GND--->DGND

    SS0--->SYNC

    SCK--->SCLK

    MOSI--->SDIN

    MISO--->SDO

    GPIOB0--->LDAC

    GPIOB1--->CLEAR

    GPIOB2--->POC

    GPIOB3--->RESETB

    GPIOB4--->FAULTB

    GPIOB5--->ALERT 

    For DVDD on J11, you can connect an external supply to provide power to this pin.

    Best regards,

    Rainier

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