Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

HARD IP DDR3 with UniPHY + ArriaVGX: too long not local_ready

Hello! I am long enough work with DDR/DDR2/DDR3 IPs using Altera Device's. But this see first time. I use 2 chips together (32 bit width) Hard IP DDR3 600 MHz. And see that during long rea...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

Problem has been solved. If change parameters to control refresh then local_ready nearly always ready (but refresh must be done every 4 us). In my case I don't do refresh at all because algorithm which works with RAM write and read from the start address to N address without delays (all needed rows are always charged).

Goodluck to every one!