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Fletch's avatar
Fletch
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2 years ago
Solved

Uniphy DDR3 Data Corruption

I'm hoping someone in this forum has some insight on data corruption I am seeing when accessing a discrete DDR3 using Uniphy IP. I first noticed data errors when using it as a video frame buffer. No...
Memory
  • Fletch's avatar
    Fletch
    2 years ago

    Hi Adzim,

    I was able to correct this. My refresh cycle time was too short.

    Thanks,

    Brandon

Andrey4's avatar
Andrey4
Icon for New Contributor rankNew Contributor
2 years ago

Hello! I'm also using two chips "MT41K256M16DA-107" as a video frame buffer. Avalon-MM interface is 128-bit data and 26-bit address. I fill the frame with some test data. I looked in Signal Tap, and it shows that data from some memory address cells is not the same as I wrote before (see attached file - each address should contain 0xf800f800f800f80007e007e007e007e0, but some of them suddenly contain something else). And I have some artifacts on display because of this