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ID TECH EzWriter
Command & Response Introduction
The ID TECH EzWriter is designed to industry norms. There are two command sets to
allow backward compatibility to past versions of hand swipe Reader/Writers. One
Command set is compatible with the model IDT-3840 Reader/Writer product and is
labeled as the IDT Command Set.
IDT Command Set
There is no protocol envelope. The commands are sent and responses received. The
Host software must deliberately take care with the timing and order of the communication
process.
This command set is the default set used for the Workshop utility. New features and
associated commands have been added to increase the utility & versatility of the product.
New commands added are:
Command to support BPI setting for each track
Command to support firmware upload from host interface
The EzWriter supports the following commands. The responses are provided.
Command: Reset Buffer
Command code: <ESC> a
Hex code: 1B 61
Response: none
Description: This command reset the EzWriter buffer to initial state. Encoding settings
are not affected by this command.
Command: Read
Command code: <ESC> r
Hex code: 1B 72
Response: [data block] <ESC> [status byte]
Description: This command requests the EzWriter to read a card swiped and respond with
the data read.
Command: Write
Command code: <ESC> w [data block]
Hex code: 1B 77 [data block]
Response: <ESC> [status byte]
Description: This command requests the EzWriter to write the data block into the card
swiped.
