Verilog code for ADC using DE1-SOC

Hi,

I had tested the terasic DE1-SoC CD-ROM design example DE1_SoC_ADC https://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&CategoryNo=205&No=836&PartNo=4#contents

The ADC_SDO is transitioning correctly like the screenshot:

May be you can refer to the verilog file adc_ltc2308.v in the design example.

Thanks,

Regards,

Sheng