User manual

PICDEM™ Lab II Development Board User’s Guide
DS40001814A-page 16  2015 Microchip Technology Inc.
2.2 CONNECTING A PROGRAMMER/IN-CIRCUIT DEBUGGER
To connect either a programmer, REAL ICE in-circuit emulator or PICkit 3 programmer
to the PICDEM Lab II, first, select the package size required for the microcontroller and
load the device in the appropriate socket (see items 20, 21, 23, or 24 in Figure 1-2).
Next, connect the 6-pin programming connector to the corresponding ICSP/ICD
header on the PICDEM Lab II (see items 2, 3, 5, or 6). Note that pin 1 of the ICSP/ICD
connectors is labeled by a small white dot on the silk screen of the board. Once the
programmer/debugger is connected, connect power to the board (see Section 2.1),
run MPLAB X, and follow the instructions listed in the MPLAB X IDE User’s Guide
(DS50002027) for loading, compiling and programming code into an 8-bit
microcontroller.
2.3 LOADING DRIVERS AND TERMINAL PROGRAMS FOR THE USB-ASYNC/I
2
C
INTERFACE
Download the driver package from Microchip’s MCP2221 web page (Figure 2-1).
FIGURE 2-1: MCP2221 DRIVER DOWNLOAD
Unzip the file and double click on the MchpCdcDriverInstallationTool.exe
icon (Figure 2-1).
Note: V
VAR
is generated from the 5V input in all power supply modes of operation.
Adjustment of V
VAR
is via potentiometer R7 (see item 13 in Figure 1-2). Full
clockwise rotation of the potentiometer will result in approximately 1.5V,
and full counterclockwise rotation will result in approximately 4.8V.