In message 20041117200239.2c48dc54.cialdi@firenze.net you wrote:

We use coldfire 5282

We need to know what is the parameter and return value of get_timer()

Maybe having a short look in the source code brings some ideas?

we wnat to use get_timer() to calculate time intervals in millisecond.

Yea, that's what it's intended for.

something like:

.... a = get_timer(0); /* do something */ b = get_timer(0); ....

in this case what is the measure unit of b-a?

milliseconds.

And why not simply: a = get_timer(0); /* do something */ millisecs = get_timer(a);

???

How can I obtain millisicends?

I don't know. What's a sicend?

Best regards,

Wolfgang Denk