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Hi, guys:
when i build a new project with HDL and megafunction , I use the ALTLVDS_RX for adc data(8 channels and deserialization factor is 1) and it works . Now, I want to generate a system in Qsys(adc + Nios ii + DDR2), how can i get the adc data ?
The adc is 400 Msps.
Any help may be appreciate. :o
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You have to create an Avalon-ST streaming 'source' component for the ADC.
You then need to create an Avalon-ST 'sink' to on-chip RAM, or some sort of fast memory device. Because you do not have an infinite amount of RAM, that sink component will need some form of capture enable controller - when enabled it generates addresses to RAM.
If you use dual-ported RAM, then you can access the ADC captured data from the RAM via an Avalon-MM slave on the other port.
Cheers,
Dave
Honored Contributor
