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Altera_Forum
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14 years ago

Memory Allocation With QSys

Hi Guys, I'm stuck at the moment with being able to find and use enough memory. I need advice how to rearrange the memory so i can get a video frame buffer (like a DCFIFO or 2port RAM). I'll a...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Did You set optimization to -Os ? It shows the binary size after successful compilation in bytes.

E.g. my Nios project compilation report shows:

Info: (project.elf) 221 KBytes program size (code + initialized data).

Info: 794 KBytes free for stack + heap.

I have 8MB SDRAM chip, but I've edited linker script to exclude only 0x00800000 - 0x00900000 space and leave the other free for my own buffer. The whole memory takes addresses 0x00800000 - 0x00ffffff in SOPC.