Hi All, I'm starting to look into getting the ADC 1x5000-8 DMUX 1:2 to work on a roach 1. I'm just posting a couple of comments here that I've uncovered so far - I think most of these stem from the fact that a lot of work has gone into developing the 1:1 demux with 2 cards for the sma-wideband project and ROACH-2.
Notes: 1) I'm using the git repo from the sma-wideband project - If I should be looking elsewhere then let me know. 2) The 1:1 version uses the Xilinx FIFO IP core where as the 1:2 does not - This causes the 1:2 to not compile 3) If you hack to remove the FIFO ports from the system.mhs (bad idea) then you quickly notice that the opb_adc5g_controller has ports for the FIFO and also for 2 adc's - i.e. I don't think it will compile if you only have adc0 and not adc1 - error is "adc1_dcm_locked - port is driven by a sourceless connector " 4) I'm going to look at the ROACH-2 implementation as that might help a lot but I haven't got to it yet. Anyone know of a quick fix before I delve into the vhdl - different repo/earlier version? I know most people are pushing ahead with the 1:1 on the ROACH-2 with this board and so I'm happy looking into these issues but if anyone has some quick good ideas it would be great to hear them. Cheers Ross -- Ross Williamson Research Scientist - Sub-mm Group California Institute of Technology 626-395-2647 (office) 312-504-3051 (Cell)
