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4.7 Programmer Powers the Target System
4.7.1 Overview
The PPM3 programmer is capable of supplying a controlled voltage from 3.0 to 5.0V to power the
Target System at a maximum current of 300mA. This allows the programmer to power the Target
System via the ISP Cable and switch power on / off under Programming Project / Script control. The
voltage and current settings must be set up in the Programming Project prior to powering up the
Target System. In this mode it is also possible for the programmer to automatically sense whether a
Target System is connected to the programmer – see Target Sensing section.
Fig. 4.7.1 Programmer powering the Target System
fig. 4.7.2 Settings for the programmer powering the Target System
#
Parameter
Description
1
2
Programmer
Input voltage
source
V_Target
(Output voltage
to Target
?
?
?
?
External 9.0 – 12.0 V DC regulated supply required
Connect power supply to either DC Jack Socket or 2-way Molex Power
Connector on the rear panel of the programmer.
Programmer outputs a Controlled Voltage to the Target System:
3.0 – 5.0V DC @ 300mA max
Voltage / current setting must be set up in the Programming Project
System)
3
4
5
Vcc Option Link
LK1 Link
Programmer
I/O Level
?
?
?
?
Not Fitted
Fitted
Programmer Vcc signal should be connected to the Target Vcc
Programmer I/O Level Converter is powered at the Controlled Voltage
which is the same as the Target System voltage.
Converters
64
PPM3 MKII Programmer - User Guide - V1.04 - 10 th May 2008
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