Forum Discussion

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

about verify failed in sdram

hi,when i debug my program in niosII, i select the option Download program to Ram in Debugger page, but it always tips in the Console "Verifying 01000020 ( 0%) Verify failed between address 0x1...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

... actually in a thread close by called "ddr2 sdram" user adream307 mention something that solved my problem:

"The clock for ddr2 sdram controller has 0 degree phase, but the clock for ddr2 sdram write has -90 degree".

I had changed the phases to match my original design.