Mikroelektronika MIKROE-350 データシート

303

- SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD

CHAPTER 6

sub 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                                       
dim PS2_Data as sbit at PINC.B0           
dim PS2_In_Clock as sbit at PINC.B1     
dim PS2_Out_Clock as sbit at PORTC.B1   
dim PS2_Data_Direction as sbit at DDRC.B0 
dim PS2_Clock_Direction as sbit at DDRC.B1
// End of PS2 pinout definition

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