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So, as I said, you need to show us the first few lines of this file,

functions.c

void Blink_Led (void);
void Blink_CO_Led(void ...

Two things.

First, your include of the lcd driver should be after the fuses.
The sequence should always be:

Processor
Fuses
Clock

Then and only then other includes.

The fuses and clock ...

For the forum. What is working and what you did to make it work? Maybe your code? It will help others for sure.

im trying to Sends a message when the power is cut off.

For this, use the interrup ...

As always, the basic 1s blink led is useful to tell if timings and settings are ok and that your Pic is alive. An example is maybe two threads down. So two questions. Does your Pic work with the desir ...

As a side note. Main should do all the heavy work, interrupts are there just to tell the main what to do. It depends on what you are trying to control, but it is always a good idea to run your pic as ...

Hello

the IOC_A4 interrupt is no working correctly on switching states

PCH v5.115.

Any ideas?

#include <16F1823.h>
#device adc=10

#fuses INTRC_IO NOWDT BROWNOUT PUT NOLVP
...

quik answer...
According to the manual the clear_interrupt(...) function requires a CONSTANT not a variable.... so you MUST put the 'name' of the interrupt you're using.
The PIC header file will hav ...

Hi

what kind of variable should i put to toggle between two INTERRUPT types like INT_IOC_A3_H2L and INT_IOC_A5_H2L.

let me explain what i have in mind.

int32 interrupcion = INT_IOC_A3_ ...

Does this library work in Proteus?

I have a restricted ROM. Someone has any ideas to solve this issue ?
Everything in the code is strictly necessary.

Error#71 Out of ROM, A segment or the program is too large MAIN
Seg 00042- ...

Thank you. With A6 module works perfect. it a bit more expensive but it saves me lots of time.

I have other issue...

Error#7 Invalid Pre-Processor directive Invalid Pin

i didn found #pin_s ...

I could see the messages in the PC via RS232.
The problem is +CREG: 1,3 (registration denied).

You have a voltage problem.
The SIM800, is a 3.3v device (actually supports 4.4v maximum).
The boards supplied for things like the Arduino, have a regulator to give
the 3.3v, but they don't have a ...

Is that module designed to be operated at 5 volts ?
Most peripheral devices are 3 volts and need 'logic level converters' to properly connect to 5 volt PICs.

If you have a 'link' to the module we ...

Always best to start with the hardware
1) what is the VDD of the PIC ?
2) what is the VDD of the SIM800L?
3) is the SIM800L a 'chip' or a 'module' ?
4) What is the rating of the power supply in ...