AD9258 is not getting configure?

Dear Team,

I hope you are doing well.....!!

I am trying to configure AD9258 ADC using SPI, I checked the signals at resisters near to SCLK, SDIO and CSB, there i Am able get signals but while checking Vref Voltage it is showing its default value of 2Vpp, I can't able to identify weather the ADC gets configure or Not, Kidnly suggest the possible ways to check the configuration.

Following are my Register values:

32'h00001800

32'h00050300

32'h00FF1000

32'h00088000

32'h00090100

32'h000B0000

32'h000D0000

32'h000E4000

32'h000F0000

32'h00100000

32'h00140000

32'h00160000

32'h00170000

32'h00181000=Vref

32'h00300000

32'h01000700

Kindly Share your response.

  • Hi,

    As per understanding, you are trying to read the default configurations of the Memory Map registers? Am I correct? I spotted some mismatch in address register 0x0E and 0x18 (Vref select) You can verify the default values in Table 17 of the AD9258 data sheet.

    For Voltage Reference configuration, please check page 29 of the datasheet.

    Regards,

    Meriam