Mikroelektronika MIKROE-738 Datenbogen

406

mikoC PRO for PIC32

MikroElektronika

Library Routines

 

- RS485Master_Init 

 

- RS485Master_Receive 

 

- RS485Master_Send 

 

- RS485Slave_Init 

 

- RS485Slave_Receive 

 

- RS485Slave_Send 

RS485Master_Init

void RS485Master_Init();

Description Initializes MCU as a Master for RS-485 communication.
Parameters None.
Returns

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. 

- 

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.

sbit RS485_rxtx_pin_direction at RF2_bit;  // transmit/receive control set 

sbit RS485_rxtx_pin_direction at TRISF2_bit;   // RxTx pin direction set as 

...

UART1_Init(9600);                           // initialize UART1 module

RS485Master_Init();                        // intialize MCU as a Master for 

None