Counter in a delay in PIC18 Microcontroller using C++

[Darkbyte]

Hi there , I am in a midst of a project and has some question to ask about
micro controller.

This is what one of the function that I would like to carry out in a micro controller and I would like to know whether it is workable and if it work , how do I go about doing it.

Lets make the delay as 2 second.
lets take the () bracket as the delay
, inside the () is the tasks required to do .

Start of delay -->( Pulses of signals are generated , a counter is set to determine how many rising/positive edge are there , tabulate the counts and use a nested loop to match the count & send a signal to display on the lcd after the delay has ended )-->end of delay


my application is like this : once i reach bus station 2 , the delay will be activate , 2 pulses will be generated and when the delay has end , i will program it such that it will display : station 2 on the lcd display.

Is this possible to program?

 

[DineshSL]

Hello,
Definitely;
Micro-Controller Timers are there to do that.

First you set the timer-trigger value for 2 seconds; then you can use an input signal to start the timer(= reach bus station 2). Then do what you need (inside the 2 seconds). Use an interrupt to get the signal when timer is overflowed.(ie end of 2 seconds).

Select the uC and it's clock that it's timer can go for 2 second. (eg 18F2550/4550 's Timer0 can do it )

Wish you success !