Forum Discussion
Altera_Forum
Honored Contributor
15 years agoBeMicro SDK: PIN C6 (VREFB8N0) is assigned to RAM_CS#
I have quite a few questions for the BeMicro SDK, but one at a time. The support material is pretty lacking and doesn't even include a pin assignment. I made one based on the schematics, but wh...
Altera_Forum
Honored Contributor
14 years agoGot some more info to add... check this out:
http://www.altera.com/support/kdb/solutions/rd01042008_479.html?gsa_pos=1&wt.oss_r=1&wt.oss=mobile "The Cyclone® IV devices use non-DQS read capture whereby the DQS signal is ignored." Which they say doesn't work for Mobile DDR (more details at the page above). So how does the Microtronix IP work if the Cyclone IV doesn't have the requisite read captuer? By "using the PCIe delay feature and logic elements". Sounds like they figured out a workaround which uses the PCIe hardware of the Cyclone. Presumably Altera's DDR controller does not contain this workaround. SO, assuming one wanted to do this themselves... anyone know how to go about "using the PCIe delay feature and logic elements" of the Cyclone IV? Cheers, Don