Mikroelektronika MIKROE-742 데이터 시트

315

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

procedure Ps2_Config();

Nothing.

Initializes the MCU for work with the PS/2 keyboard.

Global variables : 

- 

PS2_Data

: Data signal line 

- 

PS2_In_Clock

: Clock signal line in 

- 

PS2_Out_Clock

: Clock signal line out 

- 

PS2_Data_Direction

: Direction of the Data pin 

- 

PS2_Clock_Direction

: Direction of the Clock pin 

must be defined before using this function.

// PS2 pinout definition                                       
var PS2_Data : sbit at PINC.B0;           
var PS2_In_Clock : sbit at PINC.B1;     
var PS2_Out_Clock : sbit at PORTC.B1;   
var PS2_Data_Direction : sbit at DDRC.B0; 
var PS2_Clock_Direction : sbit at DDRC.B1;
// End of PS2 pinout definition

...
Ps2_Config();         // Init PS/2 Keyboard