User manual

 2015 Microchip Technology Inc. DS40001814A-page 11
1.3 POWER SOURCES
The PICDEM Lab II Development Board can be powered in one of three ways,
depending on its usage.
1.3.1 USB Connector (J18)
The USB connector (J18) will power the entire PICDEM Lab II Development Board.
Shunt jumpers must be placed onto jumpers J2 and J6 (Figure 1-2). Shunt jumpers
connecting the center and right pins of J2 and J6 will connect the internal regulators to
the USB supply on J18. With USB power connected to J18, power LEDs LD1 and LD2
will always be on to indicate that 5V, 3.3V, and V
VAR
are available on the board.
1.3.2 9V External Power Supply (J1)
The 9V external power supply (J1) will also power the entire PICDEM Lab II
Development Board. Shunt jumpers must be placed onto jumpers J2 and J6
(Figure 1-2). Shunt jumpers connecting the center and top pins of J2 and J6 will
connect the internal regulators to the 9V DC input J1. In this configuration, switch SW1
can be used to turn power to the board on and off. With 9V external power connected
to J1, and switch SW1 in the on position, power LEDs LD1 and LD2 will always be on
to indicate that 5V, 3.3V, and V
VAR
are available on the board.
1.3.3 External Supply Connection Points
The external supply connections points (TP1-4) will also power the entire PICDEM Lab
II Development Board. Shunt jumpers must be placed onto jumpers J2 and J6
(Figure 1-2). The center and bottom pins of J2 and J6 will connect the 5V and 3.3V
connections to the four external supply connection points (TP1-GND, TP2-5V,
TP3-3.3V, TP4-GND). With 5V and 3.3V connected to the external supply connection
points, power LEDs LD1 and LD2 will always be on to indicate that 5V, 3.3V and V
VAR
are available on the board.
1.4 CONNECTING THE PICkit™ PROGRAMMER/DEBUGGER
Connections for the PICkit programmer, REAL ICE™ in-circuit emulator or ICD
modules are done through the 6-pin headers above the microcontroller sockets
(Figure 1-2). Each socket group has a separate connector to allow individual
programming of the devices. 28-/40-pin devices are programmed via ICSP4,
8-/14-/20-pin devices are programmed via ICSP3, 18-pin devices are programmed via
ICSP2, and 6-pin PIC10FXXX devices are programmed via ICSP1. The pin to the
furthest right of each ICSP connector has a small white dot that signifies the location of
pin 1. The programmer should be connected to the appropriate ICSP connector with its
pin 1 matching the ICSP connector pin 1. Start-up and programming of any
programmer/in-circuit debugger should be performed as specified by the
programmer/debugger documentation.