supported MCUs
Using crystal oscillators
If you want to use microcontrollers in
DIP8
,
DIP14
and
DIP20
packages, it is
necessary to put quartz crystal into socket
X2 (OSC2)
. The value of the quartz-
crystal depends on the maximum clock frequency allowed, and your application,
and you can always exchange the default 8MHz crystal with another one.
Only one microcontroller may be plugged into the development board at the same time.
Before you plug the microcontroller into the appropriate
socket, make sure that the
power supply is turned
off.
Images above show how to correctly plug a
microcontroller. First make sure that a half circular cut
in the microcontroller DIP packaging maches the cut
in the DIP socket. Place one end of the microcontroller
into the socket as shown in
Figure 4-3
. Then put
the microcontroller slowly down until all the pins
match the socket as shown in
Figure 4-4
. Check
again if everything is placed correctly and press the
microcontroller until it is completely plugged into the
socket as shown in
Figure 4-5
.
Figure 4-6: RA6 and RA7 as I/O pins
(when using internal oscillator)
Figure 4-3: Place both ends of microcontroller on
the socket so the pins are aligned correctly
Figure 4-4: with both fingers, evenly distribute
the force and press the chip into the socket.
Figure 4-5: Properly placed microcontroller will
have equally leveled pins.
Figure 4-7: RA6 and RA7 connected
to X1 oscillator
Figure 4-8: RA4 and RA5 as I/O pins
(when using internal oscillator)
Figure 4-9: RA4 and RA5 connected
to X1 oscillator
How to properly place your microcontroller into the DIP socket?
1
1
2
2
3
3
4
IMPORTANT:
IMPORTANT:
Microcontrollers which are plugged into socket 10F use their own internal oscillator and are not connected to any of the mentioned quartz-crystal sockets.
PIC microcontrollers normally use a quartz crystal for the purpose of providing
clock frequency. The
EasyPIC
™
v7
provides two sockets for quartz-crystal.
Microcontrollers in
DIP18A
,
DIP18B
,
DIP28
and
DIP40
packages use socket
X1 (OSC1)
for quartz-crystal.
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