Posted on September 20, 2006 at 15:20I am developing a application in C using RVDK 2.1.
I am facing a problem with floating points when using them in a ISR. Calling (call by value) a function manipulating/expecting floating point variables from a ISR wont work properly.
When the function comes back to the ISR the return value is invalid. The same function called from main() or elsewhere works correctly. It seems that float values cannot be passed correctly from the ISR to another routine and vice-versa.
I made a workaround by inlining these functions. Nevertheless I want to know why this happens and how I can avoid this problem.
It cant be that nobody has a solution or explanation for this. :o
regards,
Erwin
