PTC04

Programmer for Melexis PTC Devices

3901290014501

Page 11 of 15

Data Sheet

Rev 004

December/14

15.

Daughter board concept

15.1 Background

The future of our products is not known and building a universal programmer will not be possible to

survive more than a few years. For this reason, a flexibility is built in by having a Daughter board

(abbreviation: DB) as interface between PTC04 and the application connector. On this way, special needs

can be fulfilled. The simplest DB is just wires form the DB connectors to the application connector. The

idea is to support with one single DB as many as possible products.

15.2 Requirements

See specific daughter board documentation.

16.

RS 232 Communication with host

This page describes all items concerning the hardware of the RS232C communication link.

Information about the protocol is explained in the software documentation.

16.1 Connector

DB9-Male

Description

2

RxD

3

TxD

5

GND

Table 9: RS232 connection

(At the Computer and at the PTC04)

9 PIN D-SUB MALE at the Computer.

16.2 Cable

The cable between PTC and Host PC is a standard null-modem cable for RS232C Cable Description:

DB9-FEM

DB9 FEM

Description

2

3

RxD / TxD

3

2

TxD / RxD

5

5

GND

Table 10: RS232 cable