Commit Graph

4 Commits

Author SHA1 Message Date
Ross Thompson
5da5b76449 Fixed more issues with arty a7 constarints. 2023-04-16 13:25:02 -05:00
Ross Thompson
d2272c0620 Found and fixed the major architecture issue with the mig 7 used in the arty a7 board.
mig 7 is completely different from the ddr4 mig in that the internal pll does not general the required clocks. An external mmcm is required to general two inputs clocks and the required user clock.
2023-04-15 11:13:28 -05:00
Ross Thompson
c9445384d7 Realized we need a separate mmcm when using the mig 7 for ddr3 rather than the ddr4 mig. Go figure. 2023-04-14 18:02:16 -05:00
Ross Thompson
2abd164d03 Fixed syntax errors in arty7 top level. 2023-04-10 16:08:40 -05:00