Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

How to read and write value in two different systems?

Dear everyone, I am now working on a multicore system. cpu_0 runs uclinux, cpu_1 runs a piece of program, the base address of led_red( pio ) in the SOPCBuilder is 0x00400000, the base ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

<div class='quotetop'>QUOTE (babysnow @ Aug 11 2009, 11:54 AM) <{post_snapback}> (index.php?act=findpost&pid=23479)</div>

--- Quote Start ---

Also , I wanna create a share memory between them. But that may be the next step.[/b]

--- Quote End ---

Not a good idea IMHO. A FIFO will be much less problematic and supposedly offer not much less performance. Maybe even more performance, as a shared memory - unless it&#39;s a dual ported design - needs to do hardware access control with any read and write cycle.

-Michael