Mikroelektronika MIKROE-738 Datenbogen

408

mikoC PRO for PIC32

MikroElektronika

RS485Slave_Init

void RS485Slave_Init(char Slave_address);

Description Initializes MCU as a Slave for RS-485 communication.
Parameters - 

Slave_address

: Slave address 

Nothing.

Global variables: 

- 

RS485_rxtx_pin

 - this pin is connected to RE/DE input of RS-485 transceiver(see schematic at 

the bottom of this page). RE/DE signal controls RS-485 transceiver operation mode. Valid values: 

1

 

(for transmitting) and 

0

 (for receiving 

- 

RS485_rxtx_pin_direction

 - direction of the RS-485 Transmit/Receive pin. 

must be defined before using this routine. 

UART HW module needs to be initialized. See UARTx_Init.

Initialize MCU as a Slave with address 160:

sbit  RS485_rxtx_pin  at  RC2_bit;          //  transmit/receive  control  set  to 

sbit RS485_rxtx_pin_direction at TRISC2_bit;   // RxTx pin direction set as 

...

UART1_Init(9600);                   // initialize UART1 module

RS485Slave_Init(160);                // intialize MCU as a Slave for RS-485 

None