Please have a look at the GIC400. This is the interrupt controller used for RPI4. The way interrupts are handled is vastly different than for RPI3. I'm struggling with it myself as well, but start with that.
Have a look at the Corelink GIC400 documentation https://www.bing.com/search?pglt=41&q=g ... A1&PC=U531
Then look at examples to find the correct interrupt numbers to use, e.g. in circle baremetal.
Have a look at the Corelink GIC400 documentation https://www.bing.com/search?pglt=41&q=g ... A1&PC=U531
Then look at examples to find the correct interrupt numbers to use, e.g. in circle baremetal.
Statistics: Posted by renebarto — Sun Oct 27, 2024 11:43 pm