Hi,
I'm working on a relatively simple PRU project where I want to use the IEP peripheral. I'd prefer to develop this in C, but I can't find any way of accessing the IEP or other peripherals without using inline assembly,and this is what I've done. It seems like a big compromise though and I'm wondering if there's a way round this - it kind of defeats the point of using C in the first place.
Also using inline assembly I have a few issues, e.g.
1) the inline assembly doesn't recognise #define-d C constants
2) I'm having issues with the C compiler complaining about assembly labels if they're not at the beginning of the __asm__... block. I know the C compiler documentation advises against using labels, but again I can't see a way around this - I need to poll an IEP status flag in a loop to check for an overflow.
Anyway, I can give more concrete examples if that's helpful, but I just wanted to get some general advice on how to approach this first.
Thanks very much,
Luke