AVR libraries [ libraries for AVR ]
| PS2 Keyboard Library From Atmel | |||
| Author | Don Carveth | ||
| Author website | www.atmel.com | ||
| Description | PS1 Keyboard Interface Don Carveth July 2002 PS-2 (PC-AT) style keyboard interface. Mirrors all characters typed on PC-AT keyboard on terminal connected to UART. Based on Atmel App Note AVR-313 Converted supplied c code to GCC 3.2 Based on ATMEGA163 at 8 MHz *********** REVISION HISTORY ************************** Rev 0 Creation 8/30/02 Converted from IAR to GCC Operational. *********** OPERATION ********************************* Connect PS-2 keyboard as shown below - see App note for connection info Connect UART to terminal program at 19200 baud, 8N1 All standard keys pressed will mirror on terminal. Shift works, Hit Connect an LED to PD5 to ensure the program is running. Use the test pin at PB1 to monitor progress. Insert test_pin() commands in the program to toggle the pin - watch on your scope. Only need for debugging. To change processor or crystal make changes in StdDefs.h. Select between polled and interrupt driven UART transmit (putchar) in StdDefs.h *********** RESOURCES ********************************* Processor: ATMega163 Crystal: 4 MHz Flash size: 0x7e6 (2022) RAM Used: 0x9c (156) EEPROM Used: 0 Pins used: PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PB0 PB1 PB2 PB3 PB4 PB5 MOSI - ISP, PB6 MISO - ISP, PB7 SCK - ISP PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 PD0 UART Rcv PD1 UART Txd PD2 INT0 - Clock PD3 INT1 - Data PD4 PD5 Run LED PD6 PD7 Interrupts: INT0 - PS-1 Keyboard clock Timers: | ||
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| Downloads | 8629 | ||
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