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I made a simple program to test the connection to the computer.
The result is the same echo is received in reading the first byte of the PIC.
Here is the log file from the terminal connection.

...

Many thanks for guidance Smile

1. I agree, we will remove it.
2. use in other parts of the program from the CCP1 interrupt timer interruption And ..
3. Use the break and the external entrance to P ...

use usb to rs232 by FT232RL, This is the computer.

The previous version program, worked on the 18F458 and there was no such problems, but I'm not used to interrupt for rs232 communication .

Hello, I try to start communication between PIC and PC via RS-232.
PIC-18F7622,
40 Mhz Clock = PLL + 10 Mhz Crystal.
Compiler - PCWHD 4.093
Send one byte of the PIC, and waiting PC to return 1 ...

Sorry is my mistake, I really have not seen out there VDD and VSS pins of the processor.
I thought it was the other PIC, and these pins are connected by default in Proteus.
Now everything works as I ...

Sorry for bad English.

this table (20-1) I read it.

Well, to explain again.
I want to measure the analog signal port A0. I want to reference voltage is used internally to the CPU:
VREF-= 0V ...

Thank you for your guidance:)

Processor Clock is 5 mhz (20Mhz quartz crystal).
ADC returns an integer, but the function had other calculations, and this result is float.

I did the following: ...

Hello, please help
I want to measure the voltage of the ADC with PIC18f6722.
Included is the input A0.
But something wrong configuration of the PIC.
Simulation of Proteus, and gives a warning:

...

And I know that should work with PIC 16f877, but now I do not understand what was happening.
I changed the version of Proteus, but no change.
Will change and version of CCS , to see what happens. ...

Hello,
I have a problem please help.
I apologize for bad English!

I'm trying to use CCP Capture module for calculating the period of the rectangular input pulses. Do simulations with Proteus but ...