ABL electronic PIC16 Personal Computer User Manual


 
mikroC provides a library for communicating with common PS/2 keyboard.The
library does not utilize interrupts for data retrieval, and requires oscillator clock to
be 6MHz and above.
Ps2_Init
Ps2_Config
Ps2_Key_Read
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mikroC
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PS/2 Library
Library Routines
Prototype
void Ps2_Init(unsigned short *port);
Description Initializes port for work with PS/2 keyboard, with default pin settings. Port pin 0 is
Data line, and port pin 1 is Clock line.
You need to call either
Ps2_Init or Ps2_Config before using other routines of PS/2
library.
Requires Both Data and Clock lines need to be in pull-up mode.
Ps2_Init
Prototype
void Ps2_Config(char *port, char clock, char data);
Description Initializes port for work with PS/2 keyboard, with custom pin settings. Parameters
data and clock specify pins of port for Data line and Clock line, respectively. Data
and clock need to be in range 0..7 and cannot point to the same pin.
You need to call either Ps2_Init or Ps2_Config before using other routines of PS/2
library.
Requires Both Data and Clock lines need to be in pull-up mode.
Example
Ps2_Config(&PORTB, 2, 3);
Ps2_Config