Mikroelektronika MIKROE-724 データシート

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mikoBasic PRO for dsPIC30/33 and PIC24

MikroElektronika

The  mikroBasic  PRO  for  dsPIC30/33  and  PIC24  provides  a  library  for  communication  with  the  common  PS/2 

keyboard.

Important: 

- The library does not utilize interrupts for data retrieval, and requires the oscillator clock to be at least 6MHz. 

- The pins to which a PS/2 keyboard is attached should be connected to the pull-up resistors. 

- Although PS/2 is a two-way communication bus, this library does not provide MCU-to-keyboard communication; e.g.  

  pressing the Caps Lock key will not turn on the Caps Lock LED. 

dim  PS2_Data  as  sbit  sfr 

PS/2 Data line.

dim PS2_Data as sbit at RB0_bit

dim  PS2_Clock  as  sbit  sfr 

PS/2 Clock line.

dim PS2_Clock as sbit at RB1_bit

dim  PS2_Data_Direction  as  sbit 

Direction of the PS/2 Data pin.

dim  PS2_Data_Direction  as  sbit  at 

TRISB0_bit

dim PS2_Clock_Direction as sbit 

Direction of the PS/2 Clock pin.

dim  PS2_Clock_Direction  as  sbit  at 

TRISB1_bit

External dependencies of PS/2 Library

Library Routines

 

- Ps2_Config 

 

- Ps2_Key_Read