Programmer Powers The Target System; Overview; Hardware Setup - Programmer Powers The Target System - Equinox Systems EPSILON5 MKII User Manual

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Datasheet of EPSILON5-A1 - ISP PORTABLE PROGRAMMER USB
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3.4 Programmer Powers the Target System

3.4.1 Overview

In this scenario, the programmer is constantly powered from an external power supply (not supplied)
via the connector CON1. The Jumper J9 is fitted which connects the voltage applied to CON1 to the
PROG_VCC pin on each ISP header. The external power supply voltage V_EXT_PSU is therefore
routed directly to the Target System Vcc. When an ISP Cable is connected from the programmer to
a Target System, the Target System will power up to the external power supply voltage V_EXT_PSU.
When the cable is removed, the Target System will power off.

3.4.2 Hardware Setup - Programmer powers the Target System

DC Power Cable
The programmer is supplied with a 'DC Power Cable' which plugs into the CON1 - DC Power Input
Connector on the programmer.
•
The black lead with the white stripe is the +VE cable.
•
The all black lead is the GROUND cable.
•
The external voltage applied to CON1 must be between 3.1 and 5.0V !
•
The Target System must not draw more than 300 mA from the programmer.
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EPSILON5 MKII Programmer - User Guide V1.12 – 1
st
August 2007