PPM3 MKII Programmer - User Guide - V1.04 - 10
th
May 2008
43
2.8 Standalone Remote I/O Programmer Control
2.8.1 Overview
The PPM3 programmer can be controlled using a simple 4-wire Remote I/O (TTL) signalling protocol
as shown in the diagram below. This control method is ideal for interfacing the programmer to In-
Circuit Testers (ICT’s) or other production equipment which does not have an RS-232 port.
Fig. 2.8.1 Remote System Control of Programmer
Remote
System
START
Equinox
PPM3
Programming
Module
ACTIVE
OK
FAIL
GROUND
The Remote System simply asserts the programmer
<START>
signal to initiate the execution of a
‘Programming Project’. The programmer will then assert the
<ACTIVE>
signal to indicate that it has
commenced programming. At the end of the Programming operation the programmer asserts either
the
<OK>
or
<FAIL>
signal depending on the outcome. The Remote System must then de-assert the
<Start>
signal to allow the programmer to reset ready to program the next device.
Please refer to section 2.8.3 for an example of the Remote I/O control signal waveforms for a typical
programming iteration.
Summary of Contents for PPM3 MK2
Page 1: ...User Guide...
