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Chapter 2. Getting Started
This chapter goes through a basic step-by-step process for getting your
PICDEM-1 up and running using the PICMASTER emulator system.
1. Assemble the PICMASTER emulator
? Follow the instructions in your PICMASTER emulator package and con-
nect the emulator pod to an IBM ? compatible PC. Make certain that
the power switches for both the PC and the PICMASTER are in the
OFF position before connecting.
? Connect the appropriate probe to the PICMASTER pod using the rib-
bon cable provided (6 of Figure 2.3). For information on which probe to
choose, refer to the PICMASTER Probe Specification .
? Connect the logic probes to the emulator pod.
2. Prepare the PICDEM-1
? Remove any preprogrammed microcontrollers installed in the PIC-
DEM-1.
? Make sure there is a jumper on J3 (to enable the on-board RC oscilla-
tor).
3. Prepare the probe – AC1650011 Example
? Determine the power source and set J5 accordingly; +5 VSYS comes
from the PICMASTER system (internal) or +5 VEXT comes from an
external power source.
? Determine whether or not to enable master clear MCLR by connecting/
disconnecting J6. It is recommended that J6 be connected (MCLR
enabled) for most applications.
? Select the oscillator option to be used. Table 2.1 lists the modifications
necessary for each option.
TABLE: 2.4 OSCILLATOR SELECTION
Oscillator
selection on
PICDEM-1
RC
Crystal
Modification on PICDEM-1
J3 installed, Y2 empty,
Y1 empty
J3 removed, Y2 empty,
crystal in Y1, caps C3 and
C4 installed
Modification on Probe
Select J4 = EXTCLK,
Select SW1 = 11 (RC)
Select J4 = EXTCLK,
Select SW1 = 10 (HS),
01 (XT) or 00 (LP)
Canned
J3 removed, oscillator in Y2, Select J4 = EXTCLK,
Crystal
Y1, C3, C4 empty
Select SW1 = 10 (HS),
01 (XT) or 00 (LP)
? 1999 Microchip Technology Inc.
PICMASTER’s J3 removed, Y2, Y1 empty
Oscillator
Select J4 = INTCLK
DS33015C-page 9
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