Hello Arnauld,
thank you for your reply.
>The firmware is not synchronous on the reference design.
Well, I don't need synchronous sympling. But just a question: how do you run the sync pin of FMC126? The appropriate code is out-commented in ev10aq190_quad_phy_v7.vhd:614
--sync_out : obufds (Not used on the VC707, signals are mapped to GPIO_LED 6 and 7)
--port map (
-- i => sync_pls,
-- o => sync_p,
-- ob => sync_n
--);
>Typically in the firmware is a data router and the data router eats any sample flowing from an input (source) not connected to an output (destination).
But if I connect Chipscope to adc0_out_data, adc1_out_data, adc2_out_data, adc3_out_data in fmc126_if.vhd, the Output is connected.
Best regards,
Philipp