Search found 15 matches

Thank you guys, problem solved.

Just had to define AN1 the way the header states.

Very Happy

Hi Everyone

I am trying to read two analog inputs on the PIC18F4520,
looks like my problem is simple however I could not solve it.
The program keeps giving me an error when I define the seco ...

Thank you guys Problem solved with your advice.

1. Software mistake #device ADC=10, NOT 16.
2. Hardware, extra capacitor is added 470Micro F at the power source.

Now it's working like a S ...

Hi everyone

I am using pic18F4520 ADC to read voltage which varies between 0 - 5 volts across 100 ohm resistor as a current sensor.
The reading I am gettting from the PIC fluctuated in High range ...

Well , Its not the chip , I used the very same chip , which is new , with a different compiler (MikroC Pro ) and it works fine !
But as I said in a previous message , MikroC Pro Compiler is limited ...

Thanx dyeatman

Ttelmah, the version is - CCS PCH C Compiler, Version 5.008.

Apparently it's a new version !

Any new ideas ?

Currently, I am trying to understand the library interna ...

Hi Ttelmah

First I don't know where the version of the compiler is written on the software menus, there is no About option on the menu where the version is normally shown.

I did use the same ...

I am programming the PIC through PicKit2 writing the Hex code directly to the PIC, however I am using Proteus as well for simulation.

I will test it on an other PIC as 16F877 the most common PIC.
...

Thanks Jay

I will read that (boring) part of the manual for sure, but if the type of variable is the problem then the PIC will not save it in all cases. In this particular case the variable is sav ...

Hi

The variable STime is declared as float

float STime = 10;

The fuses declaration in *.h file is:

#include <18F4520.h>
#device ADC=16

#FUSES NOWDT //No Wa ...

Hi everyone

I have a problem when writing a variable to the PIC EEPROM. It writes the variable OK and reads it as well, but when the power is turned off and on again the value in EEPROM is reset ...

By the way, is there a method built in LCD 16X2 to flash text without having to go to a loop ?

Thank you Ttelmah

I understand the limitation of the interrupt, it looks even timer and timer overflow interrupt behaves the same way. Even if the loop is triggered by a flag outside the interru ...

The infinite loop here is not a hang up, its a part of the code where lcd is flashing continuously till a button is pressed. I am using external interrupt to detect the push button whenever pressed. ...

Hi everyone

I have a question regarding interrupts in PIC18F4520.

1. Using Timer0 overflow interrupt what happens if I am calling an endless loop from that interrupt handling routine ?

2. ...