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thanks Ttelmah
I apologize if I was not very clear, and I entered a really badly written piece of code, but the whole project is very complex and needs some elaborate hardware behind it.

I inserte ...

#include <main.h>

void main()
{

while(TRUE)
{

setup_DAC(DAC_VSS_VDD | DAC_OUTPUT);
dac_write(25); // OV DRL-->OFF
delay_ms(1000);
...

I downloaded the AN1659, now I try to implement the receive routine. Let's see if it works.

I use DMX512-A "ANSI E1.11-2008 (R2013)"
Is there an example of an updated code sample for correct reception of characters?

As you can see from the posted code, it's exactly the official CCS example, where I just changed the processor and set the peripherals I'm using, if I re-run everything properly, I'll integrate it int ...

In one of my devices I'm using a receiving routine that I do not fully satisfy, and I wanted to improve the product using CCS's DMX libraries. Then the Hardware is working.
With CCS routines I can no ...

With the solution proposed by "PCM programmer" seems to work properly, I introduced some modifications to match the applications.

Thanks "PCM programmer" and other programmers f ...

I inserted a DELAY exaggerated 1s to avoid taking the second front of the OFF-ON-OFF button as I analyze the state in the "while" loop, but I did not get improvements.

void read_Puls( ...

I tested various types of hall since it served a lot senzibilità me, the hall sensor is not receiving power from the pic port but directly from 5Volt, absorbs about 8 mA but not from the pic.

Thes ...

yes exactly just this configuration, if necessary I can put the external pull-up

HALL, For debug i put a push button with 100nF.

12F615
I/SN1524
4DG

pin I use is the A5.
I tested your suggestion is the behavior is abnormal, the system will not feel the transitions on pin A5 thus remains blocked everything not in sleep mode

while(1)
...

Compared to published code I have done many tests yet, but I have not gotten any better result, if anyone has any suggestions I feel happy.