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chiwaw
Joined: 24 Jul 2005
Posts: 15
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 Posted: Thu Jul 28, 2005 2:46 pm Post subject: Hang when writting in VRAM |
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Apparently, if I write too much U16 in VRAM, at some point the system hang. Should I write my data using cached or non-cached transfert ? Is there anything I need to know when dumping lots of data in VRAM ?
Any tip more than welcome ! |
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ector
Joined: 12 May 2005
Posts: 195
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| Posted: Thu Jul 28, 2005 3:21 pm Post subject: |
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Non-cached.
And how much are you writing? It's only 2MB, you know. |
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chiwaw
Joined: 24 Jul 2005
Posts: 15
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| Posted: Thu Jul 28, 2005 4:27 pm Post subject: |
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Ok thanks to some clever ASSERTs, I figured that my bug came from the source buffer and not from the VRAM target.
Anyway, I'll take the occasion to ask more details on cached/non-cached transferts to VRAM. What's the big differences between the two ? And is the only thing I need to do for non-cached access is to use the 0x44000000 address ? |
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