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This document is valid for device devices with firmware version 5.0 and higher

1. Introduction

VT107 is an RFID reader operating on the principle of contactless reading data from a Unique transponder (EM MICROELECTRONIC MARIN SA - P4150). Unique The unique transponder has a unique 40-bit identification number stored permanently (the number is unique to each transponder). The reader sends this number using a 1-wire bus in a format compatible with the Dallas DS1990.

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1-WIRE interface is used to transmit the read the ID of the applied transponder. The device supports the command READ_ROM and SEARCH_ROM.

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5.2 Reading the software version

To read the software version, send the following data frame to the device:

Where:

• Length – length of the data frame in bytes
• Command – code of C_FirmwareVersion command

Device The device should respond by sending the following data frame:

Where:

• Length – length of the data frame in bytes
• Command+1 – code of command performed increased by 1
• Data[ ] – sequence of ASCII characters describing software version
• OpCode – operation code

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To read the configuration memory, send the following data frame to the device:

Where:

• Length – length of the data frame in bytes
• Command – code of C_GetConfig comman.

Device The device should respond by sending the following data frame:

Where:

• Length – length of the data frame in bytes
• Command+1 – code of command performed increased by 1
• Data[0] – FamilyCode
• Data[1] – DeviceAdr
• Data[2] – Hold time ID (x 100ms)
• Data[3] – Priority service 1-WIRE
• OpCode – operation code

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To save the new configuration to memory, send the following data frame to the device:

Where:

• Length – length of the data frame in bytes
• Command – kod rozkazu C_SetConfig.
• Data[0] – FamilyCode
• Data[1] – DeviceAdr
• Data[2] – Hold time ID (x 100ms)
• Data[3] – Priority service 1-WIRE

Device The device should respond by sending the following data frame:

Where:

• Length – length of the data frame in bytes
• Command+1 – code of command performed increased by 1
• OpCode – operation code

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1. Connect a device in which firmware we are to update to the serial interface of the computer.

2. Run program NEFIR.exe.

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Operation codes are listed in the table below:

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