Hi,

Last week I attended a seminar regarding cortex-m4. I was wondering if fpc works for that processor. AFAIK, the processor is compatible with a cortex-m3, but has a hardware floating point processor and DSP-related instructions. So if fpc would be able to use the floating point processor that would be great. I wouldn't know how to use the dsp-instructions, yet.

Thanks for any pointers,

Koenraad lelong.

The FPU is single precision only, as far as I remember. That made it a little hard to work with in fpc, and last I took a stab at it there weren't any affordable chips around with support even.

The DSP instructions will probably need intrinsics to be useful, otherwise I guess they could simply be added as assembler instructions. They are fairly limited in scope anyway

Jeppe Græsdal Johansen wrote

The FPU is single precision only, as far as I remember. That made it a little hard to work with in fpc, and last I took a stab at it there weren't any affordable chips around with support even.

Hi Jeppe,

Would this be a good candidate to port fpc to cortex-m4 : http://be.farnell.com/stmicroelectronics/stm32f4discovery/board-eval-stm32f4-discovery/dp/2009276 I could sponsor one if you like ;-)
And there is no hurry. I need to finish my cortex-m3 project first and see if that processor is fast enough.

Regards,

Koenraad Lelong