MikroElektronika PIC Microcontrollers PIC16 Especificações descarregar pdf (Página 153)

Chapter 6 - Samples

Using the macro:

RS232init Macro for initializing RB0 pin and line for transmitting data (TX-pin).

Example: RS232init

SEND S_string Sending ASCII character. Argument is ASCII sign.

Example: SEND 'g'

SENDw Sending data found in W register.

Example: movlw 't'

SENDw

RECEIVE macro in interrupt routine receives data for RS232 and stores it in RXD register

Example:

At the beginning of the main program, we need to declare variables RS_TEMP1, RE_TEMP2, TXD,

RXD and TX pin on microcontroller. After resetting a microcontroller the program sends a greeting

message to PC computer: $ PIV16F84 on line $, and is ready to receive data from RX line.

We can send and receive data from PC computer from some communication program. When

microcontroller receives data, it will send a message: Character received from PIC16F84: x, thus

confirming that reception was successful.

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MikroElektronika PIC Microcontrollers PIC16 Especificações Página 153