Equinox Systems PPM3 MK2 User Manual page 83

Fig. 4.9.1 Settings - Programmer and Target System are independently powered
# Paramater Description
1 Programmer
Input voltage
source
2 V_Target
(Output voltage
to Target
System)
3 Vcc Option Link
4 LK1 Link
5 Programmer
I/O Level
Converters
72
•
External 9.0 – 12.0 V DC regulated supply via external power supply.
•
Connect power supply to either DC Jack Socket or 2-way Molex Power
Connector on the rear panel of the programmer.
•
Programmer must be set up to output the same voltage to the
programmer 'Line Driver Circuitry' as the Target Voltage.
•
This voltage is ONLY applied to the programmer 'Internal Line
Converter Circuitry', not to the Target System !
•
This ensures that the programmer I/O drivers are interfacing to the
same voltage levels as on the Target System.
•
The Voltage / current setting must be set up in the Programming
Project
•
Not Fitted
•
Not Fitted
•
Programmer Vcc signal should NOT be connected to the Target
Vcc
•
This may involve physically cutting the Vcc signal line in the ISP cable.
•
Programmer I/O Level Converter is powered at the Controlled Voltage
which is the same as the Target System voltage.
•
Eg. if the Target Voltage is 3.3V, then the Level Converter Voltage is
also 3.3V.
PPM3 MKII Programmer - User Guide - V1.04 - 10
th
May 2008