SD Card Format
All HHT's are shipped with a pre-formatted SD Card. The HHT is compatible with any SD Card that has
been formatted with the FAT16 file system. FAT16 is fully supported by all versions of Microsoft Windows
Before using a new SD Card, format it for FAT16 using Windows Explorer
Card will erase the card, resulting in the loss of any data stored on it.
File Organization
HHT Test results files are organized by Tool ID. Each E84 interface in the FAB is associated with an EFEM
(Equipment Front End Module) on a specific Tool. When testing a specific EFEM, it is convenient to
organize all stored test results together.
Tool ID
The HHT stores all test results in a folder on the SD Card called HHT_DATA. Within the HHT_DATA folder, a
series of Tool ID text files define the Tools being tested. The Tool ID files can be created using a text
editor (Notepad) on the PC, or on the HHT using the Stored Test Data option. See below for the file
format to use when creating Tool ID files on the PC. A description on creating new Tool ID's on the HHT
can be found below.
The Tool ID file contains the Tool's ID (max. 8-character name), it's Location (max 20-characters), and a
description of the Tool (max. 100-characters). The ID file also contains a breakdown of the types of tests
stored by the HHT for that Tool.
When the HHT stores data to a specific Tool, a sub-folder is created within the HHT_DATA folder. The Tool
ID is used as the name for this new folder. All test results stored for this Tool is placed within this sub-
folder. This folder is created automatically by the HHT. There is no need to create the folder manually.
Figure 3 shows an example of the SD Card file organization.
The Combo Drive E: is the Windows Explorer tag for the SD
Card. The root folder of the SD Card has a single folder in it
called HHT_DATA. Inside this folder, a series of sub-folders
and text files are displayed. The text files (TOOL001A.TXT,
TOOL001B.TXT, TOOL001C.TXT and TOOL002.TXT) are Tool ID
files. Each Tool ID file is associated with a sub-folder (of the
same name, minus the .TXT extension). All test results for a
given tool are stored within the associated sub-folder.
Test Results File Name
The HHT automatically names stored test results files based on the test type. The HHT keeps index
counters for each type of test. When results from a specific test type are stored, the HHT creates a
filename in the format XXNNNNNN.DAT where XX is a two character test type code, and NNNNNN is a six
digit index number. The first file saved for a specific test type is given index number 1. The index
number is incremented for each subsequent results file saved.
Using The Handheld Tester
®
. Warning: formatting the SD
Using The Handheld Tester
Figure 3 - Example SD Card File System
1
®
.
PAGE 5
1
PAGE 6
Need help?
Do you have a question about the E84 and is the answer not in the manual?