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Hi everyone,

I am working on line follower robot. I have 8 sensors for tracking line use L298 for driving motors. I use 18f452 20 MHz and PD algorithm in my codes.
If I set motor's speed slowly ev ...

Hi everyone,
My question: Can I use any function in the interrupt routine?

Like this:

....
int calculate_proportional(void);
int calculate_derivative(void);
....
#int_TIMER ...

Uc is 18f452 and osc. frequency is 20 Mhz. If I understand truly:
I can set my timer1 interrupt in 1 ms.

by the way I changed code like this. It is working well now .

....
long bilgi;
long r ...

I did not use adc_interrupt before. This is the first time. Smile

I can use timer1 interrupt too.
But I did not know the adc conversion time. 10 ms or 100 ms or 500 ms!!!!

//variables
long bilgi;
long referans=614;
.
.
.
for(;;)
{
set_adc_channel(0);
delay_us(10);
bilgi=read_adc();
if(bilgi>referans) ...

and by the way on the top of codes i did not add any line like this.
#include <math.h>

is it problem to calculate float numbers???

yes you are right. my variables are like:
unsigned long int bilgi;
float voltaj;

Actually i dont need to know the channel's voltage value. i want to know what logical value they are.maybe ;

in ...

Hi everyone,

I want to read 8 channel ADC with 18f452 (20 MHz). After that I want to use adc interrupt but this code takes long time. How can I reduce the reading time???

void main()
& ...