dsPIC30F3014's TIMERS

Hi, i do have a problem managing the timers on dsPIC30F3014.
This microcontroller has 3 Timers: T1, T2 and T3.
For my project i use T2 and T3 to generate 2 PWM signals, that control 2 DC motors independently.
I do some Analog to Digital conversion, and i configured to be managed by "Internal Counter". I do not know what this means. Who is internal counter? Is it Timer 1?? or it is the microcontroller's clock.

I need to use one more timer, for creating an exact delay function, and i do need another Timer. So, i need to know if i can use Timer 1, or if there is another method to create a function that comports as a perfect controlled delay.

Thank you ,
Alex

The ADC unit has an internal counter based on the instruction clock that it uses for sample and conversion. It is not linked to the actual timer modules.

ok... good news.... but one more thing:
Timer 1 cand be user for the delay function?

There are a number of ways to create a delay function, but using a timer it's relatively easy and quite accurate.

In the delay function create a very tight loop that is testing a your delay count. Then you can use the Timer1 interrupt to do the actual counting of the delay. You will have to do the calculations yourself based on the Timer1 frequency though. Pseudo code below.

void delay(unsigned short delayTime)

i need "delayTime" to be a real base of time, eg 1ms.

To get a real base of time, you will have to input a multiplier on the delayCount based on the frequency of Timer1. Or just set the Timer1 frequency to be a multiple of a real time base.