As my little project takes shape, I have been learning a lot along the way. Its a bit of a learning curve going from PICAXE basic to C but that was expected.
Anyway, I have been playing with hardware a little bit and am now looking at things like timing and maths. The Teensy 4.0 has an FPU that would like to make use of. Is it a case of, but I am struggling to find a tutorial on how to make use of it.
I did some work a few years ago with the micro mega FPU co-processor which had its own instruction set and was wondering if that was the case here as well.
I have seen some comments about not being able to pass FPU variable into ISRs, which may or may not be an issue, but knowing will allow me to work around the issue if necessary.
Finally, does anyone know how fast/slow it is. The maths I am thinking about doing is going to be time critical and being able to deduct the calculation time for the result would be helpful (there maybe question about cooling at overclocked speeds later).
I do have a basic USB oscilloscope so can some measurements myself but I am not really sure how good it is as it only cost about £30.
Thanks
Anyway, I have been playing with hardware a little bit and am now looking at things like timing and maths. The Teensy 4.0 has an FPU that would like to make use of. Is it a case of, but I am struggling to find a tutorial on how to make use of it.
I did some work a few years ago with the micro mega FPU co-processor which had its own instruction set and was wondering if that was the case here as well.
I have seen some comments about not being able to pass FPU variable into ISRs, which may or may not be an issue, but knowing will allow me to work around the issue if necessary.
Finally, does anyone know how fast/slow it is. The maths I am thinking about doing is going to be time critical and being able to deduct the calculation time for the result would be helpful (there maybe question about cooling at overclocked speeds later).
I do have a basic USB oscilloscope so can some measurements myself but I am not really sure how good it is as it only cost about £30.
Thanks