DE2-115 and Terasic High Speed AD/DA daughter card

Rebk,

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I am using the AD/DA conversion card and it is different with THDB-ADA

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Are you concerned they are different boards? The link you posted in your first post is for the THDB-ADA card. Is that the board you're using?

Assuming so...

I've also had a (better) look through the data on the support CD that comes with the board. It looks like the answers were there all along - sorry. So, to answer your questions:

1) Yes, the sample Terasic project, for the DE2-115 board, looks fine - albeit in verilog. Refer to the 'DE2_115_ADDA_TOP.v' example for the following signal names.

2) It doesn't look like you need many of them. Drive 'ADA_OE_A' & 'ADA_OE_B' LOW and you should get some data out. It'll also need a clock - see point 3).

3) I suggest you start by using the oscillator on the THDB-ADA card. Fit jumper JP6 and jumpers on pins 3-4 of JP1 & JP2. This same clock is fed to and can be used inside the FPGA via 'OSC_SMA_ADC4'.

Happy coding...

Cheers,

Alex