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Altera_Forum
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13 years ago

First in Last out buffer consuming too much resources

Hi all, I'm trying to implement a first in last out buffer, that has the soul purpose of flipping image data horizontally. The image comes in as a stream of pixels in the order (1,1) , (2...
Altera_Forum's avatar
Altera_Forum
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13 years ago

with Altera RAMs, you have to ensure the read address is registered before it accesses the data in the ram (or in your case, the array). I notice you have a lot of variables, and you say you are very new to VHDL. I would recommend you not use variables for now, and make everything use a signal. You also need to make sure you are following the templates for the rams; I suggest you read the altera coding guidelines:

http://www.altera.com/literature/hb/qts/qts_qii51007.pdf

Also - have a written a testbench for this code? have you fully tested it?