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Altera_Forum
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14 years ago

Configuring ADC using FPGA

I am trying to configure an ADC using an FPGA. I can read the default values from the ADC register properly, but I'm unable to write to those registers. The fpga clock is 48 MHz and serial clock ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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Are you sending the right values for the W1/W0 fields?

Cheers,

Dave

--- Quote End ---

I think so. I want to write 1 byte of data, so W1/W0 is "00" 

SIGNAL DATA_TO_ADC : STD_LOGIC_VECTOR(NUM-1 DOWNTO 0) := '0' & "00" & ADC_WRITE_REG & ADC_DATA;
where ADC_DATA is declared as an 8-bit value.