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Altera_Forum's avatar
Altera_Forum
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16 years ago

scaler problem

Hi, I have another problem about scaler, it's right that adding a control port to scaler makes the input resolution changable, but some resolution doesn't work. My data path is listed below. Clo...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

If all configurations are OK, maybe you have memory bandwidth problem?

The frame buffer need to access the memory much more frequently at 1600 x 1200 then in 1280 x 1024.

At 1600 x 1200 x 24bit x 60Hz input & output to the frame buffer you need very high memory bandwidth.

Can you give us the details of the SDRAM (DDR) you are connecting to the FB?