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Altera_Forum
Honored Contributor
8 years agoSorry, I did not explain my problems clearly. So, DOUT1 & DOUT2 are outputs of two ADCs. They are used to trigger my microcontroller to read the output. I think that is why quartus treats DOUT as a clock, and SCLK is the clock I sent to ADC(not a real clock, only when DOUT is vivid, SCLK equal to CLK; or SCLK is 0). DIN is to set the configuration registers in the ADC.
I have run a clocks report in timequest and there is no problem except the warning I posted before. By the way, .sdc file had no problem when I was testing one ADC. I am using ADS1018 by TI.