Forum Discussion

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

SoC: Example C-code for accessing Avalon Slave peripherals?

Hi - I recently obtained an Arria V SoC card and I'm having a couple of problems... 1) All my existing designs present an external interface that looks like an Avalon Slave. In the past, I ho...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Right. For now, I would make use of the DS-5 IDE and extensions to the HWLibs/SoCal examples that are shipped as part of SoCEDS. It's a more direct method of accessing your hardware and (I think) it's the best "next step" for you and your team.

There are several bridges that go between the HPS and FPGA side of the SoC. When you're creating your Qsys design, you'll connect the bridges to your Avalon slaves. Take a look at this link to understand more about how the chip is architected and how to make use of it (http://www.alse-fr.com/archive/soc_sw_lab_13.0.pdf), particularly Module 4. The rest of the stuff you're interested in (including simple "/dev/mem" linux code) is all there as well.

Google is definitely my friend... :-)

Cheers!

slacker