Commit Graph

4 Commits

Author SHA1 Message Date
Ross Thompson
5591b447d6 Fixed more issues with arty a7 constarints. 2023-04-16 13:25:02 -05:00
Ross Thompson
f4734c0d1b 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
2f8359e6cc 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
5bcb0f6ace Fixed syntax errors in arty7 top level. 2023-04-10 16:08:40 -05:00