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ENGINEERING Change Release and DIAGNOSTIC Change Procedure for Technician Terminal

IP.com Disclosure Number: IPCOM000039929D
Original Publication Date: 1987-Aug-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 2 page(s) / 13K

Publishing Venue

IBM

Related People

Brinck, GM: AUTHOR [+3]

Abstract

This article describes a method to effect an engineering change (EC) release and a diagnostic change for a technician terminal. The assembly line diagnostic link (ALDL) and probe attachment cards within a technician terminal have erasable programmable read-only memories (EPROMs) that are subject to change and the EC files must match the EPROMs. The EC files are downloaded during initialization time and the attachment ID's and EC version number are checked. If the EPROMs and the EC file do not match the attachment ID number or they have different EC version levels, the operation is terminated. This could happen when a card with a different EPROM version is installed or switched with another card from another machine of a different EC level.

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ENGINEERING Change Release and DIAGNOSTIC Change Procedure for Technician Terminal

This article describes a method to effect an engineering change (EC) release and a diagnostic change for a technician terminal. The assembly line diagnostic link (ALDL) and probe attachment cards within a technician terminal have erasable programmable read-only memories (EPROMs) that are subject to change and the EC files must match the EPROMs. The EC files are downloaded during initialization time and the attachment ID's and EC version number are checked. If the EPROMs and the EC file do not match the attachment ID number or they have different EC version levels, the operation is terminated.

This could happen when a card with a different EPROM version is installed or switched with another card from another machine of a different EC level. Generally the parts location does not release or distribute EC files or diagnostics that are on a diskette, and if a card is replaced by a different level, the technician terminal is not operational and the new card that has been installed cannot be checked. Any system (host) that interfaces with either the ALDL or probe attachment card sends a command string and a response is returned. One of the commands is a software reset, and this command returns the level of the EC file that is currently loaded. This EC level will establish the current level of the technician terminal in the event a program problem occurs. RESET to ALDL attachment ===> 80 03 00 00 00 Response to RESET command ===> 80 01 21 In the above response the '21' is the EC version currently loaded. In the method disclosed herein changes are made in three areas that need to change to avoid the problem of mixing EPROMs and EC files. The three areas that are eff...