Velleman К8048 - Manual (Page 13)

Programming Procedure 11
K8048 © 2003 Velleman Components
7 Experiments
Use of the experiment push buttons and LEDs:
The K8048 is equipped with a max. of 4 test inputs that can be operated manually with
SW1,SW2,SW3 and SW4.
The device also has 6 diagnostics LEDs that enable the user to simulate outputs.
Click on the link "cross-reference table" to determine for every IC socket which I/O line is linked to
which push button or LED.
8 pin PIC socket 14 pin PIC socket 18 pin PIC socket 28 pin PIC socket
LD1 GP2 (pin 5) RC0 (pin 10) RB0 (pin 6) RA0 (pin 2)
LD2 GP4 (pin 3) RC1 (pin 9) RB1 (pin 7) RA1 (pin 3)
LD3 NC RC2 (pin 8) RB2 (pin 8) RA2 (pin 4)
LD4 NC RC3 (pin 7) RB3 (pin 9) RA3 (pin 5)
LD5 NC RC4 (pin 6) RB4 (pin 10) RA4 (pin 6)
LD6 NC NC RB5 (pin 11) RA5 (pin 7)
SW1 GP5 (pin 2) RC5 (pin 5) RA0 (pin 17) RB0 (pin 21)
SW2 NC RA2 (pin 11) RA1 (pin 18) RB1 (pin 22)
SW3 NC NC RA2 (pin 1) RB2 (pin 23)
SW4 NC NC RA3 (pin 2) RB4 (pin 25)
Remarks: The I/O lines coming from a pushbutton have to be configured as inputs in the source
(a 1 in the TRIS-register for that particular entrance). The I/O lines connected
with a LED must be configured as exits in the sources (a 0 in the TRIS-register for that
particular entrance).
Selecting an oscillator with the jumpers
These jumpers allow you to select which IC socket crystal X1 uses.
· Place the shunts in locations JP1 & JP2 for use with the 14-pin socket (e.g. PIC16F630).
· Place the shunts in locations JP3 & JP4 for use with the 18-pin socket (e.g. PIC16F627).
· Place the shunts in locations JP5 & JP6 for use with the 28-pin socket (e.g. PIC16F87x).
· No selection can be made for the 8-pin socket since you would lose two I/O's. With this
particular experiment board you can only use the internal oscillator with this socket.