MCS3142 datasheet(33/57 Pages) MICROCHIP

33 / 57 page

MCS3142 Dual KEELOQ® Encoder Wireless Remote Control Development Kit User’s Guide

DS40001746A-page 32

 2014 Microchip Technology Inc.

The following figure is what should be displayed for a HCS300 device selected.

FIGURE 7-4:

SCREEN DISPLAYED FOR AN HCS300 DEVICE

This will be displayed with the MPLAB X IDE in a tabularized window.

Most of the KEELOQ devices require a unique set of inputs, which consequently change

the plugin’s display. Every device will have two buttons display: Generate Source and

Export SQTP.

7.3

EXPORT SQTP

7.3.1

SQTP File Generation

Serialized Quick Turn Programming serialization is a method of programming 8-bit

microcontrollers, whereby each chip is programmed with a slightly different code.

Typically, all locations are programmed with the same basic code except for a few

contiguous bytes which are programmed with a different number (referred to as ‘key’

or ‘ID number’ or ‘serial number’) in each member. Typical applications of such

programming are remote transmitters for car alarms or garage door openers where

each unit must have a different access code.

Microchip offers a flexible SQTP program for customers who wish to have their devices

programmed by the factory with unique settings. By using the MPLAB X KEELOQ plugin,

all the user has to do is specify key parameters such as manufacturer’s code and

encryption algorithm. The utility can then output a file that can be sent to Microchip for

production programming or used on a variety of Microchip and third party programmer

tools.

MCS3142 Datasheet(PDF) 33 Page - Microchip Technology