Hey all,I'm trying to use the dram as a coefficient buffer, but I'm having some problems with the demos.
I tried to use test_dram_10_1 to fill the dram and subsequently read out the results, but it looks like the upper eight bits of every 32-bit word are being corrupted (or used as some kind of parity bits??)
Attached is a printout of the first couple of words read from the dram. As expected, the lower bits are a counter and the upper two bits increase across the row, so to speak. However, the following six bits (which should be '0's, since they're part of a counter which starts at '0'), are all 1s!
Anyone else seen this? (note: I'm using ISE 13.4. Might be the problem...)
Thanks guys! --Ryan Monroe
<<attachment: bit_pattern.png>>
