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thank ypu for reply mr klaus
really i tried by this formula
but it dosnt work fine
RegValue = cpu_freq / cycle_plses / freq / pulse_state / prescaler;
ofcourse i tried the calculator but is give the constant values
so i need to registers value every 5 second when chip are working
plz excuse me...
hello dear friends
I need your helps to find that formula to compute timer1 registers
for generate variable frequency... between 8Hz to 30KHz
know that the chip has not compare mode, only overflow
chip: PIC16F630
prescaler: 1, 2, 4 & 8
thank you
/// header file
#define cycle_plses 4 /// EVERY...
thank you MR
KlausST
The tachometer pulses one pulse per rotation
and thıs ıs my delay functıon
i tried 1uS and 10uS and 100uS
void DELAYING_10US (unsigned ddd)
{
while (ddd != 0) {
ddd--; delay_us (10); /// 1uS, 10uS, 100uS
}
and the TACHO_RPM
i...
Hello guys
I am trying to control the motor of a washing machine, and the problem I encountered is adjusting the RPM precisely compared to the value of the tachometer.
I am using a PIC16F628 microcontroller
void INTERRUPT ()
{
/// ZERO CROSSING FUNCTION ///
if (EXT_INT_FLAG) {...
You are correct, Mr.
KlausST
But if you remember that when I was defining an interrupt this way
ISR (INT0_VECT)
{
// do something
}
ISR (INT1_VECT)
{
// do something
}
ISR (INT2_VECT)
{
// do something
}
It was giving me an error message so it won't build
But when I define the...
I am very sorry, Mr.
KlausST
I understand very well what you are saying and thank you very much for that
Of course, I don't want anyone to do my work, or I won't learn anything
The problem is that I'm trying to deal with the code at the registrar level
I've been busy reading the datasheet very...
Unfortunately, I do not understand the sequence you mentioned
So please write me an example
As for the external interrupt, it must be tried
Anyway, I am waiting for the controllers, and when they arrive, I will test them and let you know the result
But I think it will work in principle because...
KlausST
I can't test it right now because I don't have controllers yet
ıt ıs just compiling and building
But when I receive the controllers, I will test it and let you know the result
Or if someone can test it right away
I think this code is compatible with a lot of controllers
But what do you...
KlausST
betwixt
danadakk
andre_luis
Thank you all for your attention and help
The problem has been resolved
It was all because of the wrong definition
void EXT_INT0_ISR ()
{
ZC_FLAG = 1;
}
void EXT_INT1_ISR ()
{
TACHO_COUNTER++;
}
In this way, it was built without errors
But I still need...
Thank you MR.
betwixt
In fact, I deal with all the interrupts inside the main function
I don't put any time delays in the external interrupts
As well as the definition of the pin of the interrupts as inputs with high value
void IO_INIT (void)
{
DDRA = 0x00; // PORTA INPUTS
DDRB = 0xFB; //...
In fact, I would like to thank you all for interacting with me and helping me
This is the complete code
please help
#include "INITS.h"
#include "VARIABLES.h"
#include "LOCK.h"
#include "PUMPS.h"
#include "VALVES.h"
#include "HEATERS.h"
#include "SENSORS.h"
#include "PRESOSTAT.h"
#include...
thank you
KlausST
As you can see in my code
I have defined all the external interrupts according to the datasheet of the controller
But I searched the Internet and found most of the codes use a library of external interrupts
This is the link
avr interrupt library
Of course I tried to include...
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