MIKROE-798 mikroElektronika, MIKROE-798 Datasheet - Page 18

• Manufacturer Part Number: MIKROE-798
• Description: Development Boards & Kits - PIC / DSPIC EASYPIC v7 DEVELOPMENT SYSTEM
• Manufacturer: mikroElektronika

Specifications of MIKROE-798

• Rohs: yes
• Product: Development Boards
• Tool Is For Evaluation Of: PIC18F45K22
• Core: PIC
• Interface Type: RS-232, USB
• Operating Supply Voltage: 5 V
• Description/function: Development board only, touch screen, pencil, DS1820, LCD, serial cable, GLCD not included
• Dimensions: 266 mm x 220 mm

USB connection
USB is the acronym for Universal Serial
Bus. This is a very popular industry
standard that defines cables, connectors
and protocols used for communication
and power supply between computers
and other devices. EasyPIC
page 18
Figure 8-1:
USB function disabled
Enabling USB connection
Depending on your target microcontroller, USB communication can be enabled on
PORTA or PORTC. For PIC18(L)F1XK50 you should put J18 jumpers in the USB
position (Figure 8-3). For PIC18Fxx(J)50, PIC18Fxx(J)53, PIC18Fxx(J)55
and PIC18Fxx58 place J12 jumpers in the USB position (Figure 8-2).
™
v7 contains
Figure 8-2:
USB enabled on PORTC
USB connector (CN4) which enables
microcontrollers
communication to establish a connection
with the target host (eg. PC, Laptop, etc).
Selection of communication lines is done
using jumpers J12 or J18, depending on
Figure 8-3:
USB enabled on PORTA
that
support
USB
the target microcontroller.
When communication lines are
routed from the microcontroller to the
USB connector using mentioned jumpers,
they are cut off from the rest of the
board, and cannot be accessed via PORT
RC3
RC3-MCU
RC4
RC4-MCU
RC5
RC5-MCU
RA2
RA2-MCU
RA1-MUX
RA1-MCU
RA0-MUX
RA0-MCU
DATA BUS
PIC18LF1XK50
PIC18F1XK50
PIC18F2XJ50
PIC18F4550
J12
J18
VCC-3.3
Figure 8-4: USB connection schematic
(jumpers are in USB disabled position)
headers.
Dedicated USB ON LED
signalizes the presence of USB connection,
when the USB cable is inserted into the
USB connector.
R11
4K7
L44
USB ON
VCC
D-
D+
GND
1
2
3
4
CN4
USB B