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Altera_Forum's avatar
Altera_Forum
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16 years ago

On-Chip Memory Required?

Hello all, I am new to NIOS, but quite familiar with FPGAs otherwise. I'd like to setup a NIOS II processor on a design that is already in place. I'd like to keep the on-chip memory usage to a bare...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

One option is to write some demo programs that don't require ANY of libc. The first thing to go is any calls to printf(), then you need to get the calls to fclose() out of the wrapper that calls main().

Having done that you have almost 0 byte of overhead, and it is possible to write programs that will load with 4k of code and data.

A simple function to write strings to the jtag uart would be enough for daignostics.