Using FPGA to HPS-Bridge

I am not sure why but everytime I click to download your bridge test code, the forum asked me to log in (I am already logged in) but once I did that I am still unable to view your file. Weird.

Anyway, I am assuming that you are using Cyclone V SoC devices. I don't have a C-program tutorial, but there is a working design for Cyclone V and Arria 10 SoC that you can refer on (based on baremetal). Here is the link:

https://www.altera.com/support/support-resources/design-examples/soc/fpga-to-hps-bridges-design-example.html

Hope it helps....