Reference Manual
Prox–DU & Prox–SU
www.gemalto.com
DOC118569D Public Use Page 126/145
It is the same than firmware version request for the reader. Then the response can be
checked to confirm if the boot-loader is running or the device firmware is running.
Reset reader command
This command is used to reset the Prox–DU or Prox–SU device.
The command format is the following:
Offset Field Size Value Description
0 bCommandFamily 1 52h Reader command
1 bCommandType 1 F8h Management
2 bCommand 1 05h 03h = Read current interface
switch state
04h = Switch interface
3, 4 wLength 2 0000h Size of the Data field
The response format is the following:
Offset Field Size Value Description
No answer for this command
Boot-loader error codes
In the following table:
• The MSB byte correspond to the first byte reported in the abStatus field of the HID
response
• The LSB byte correspond to the second byte reported in the abStatus field of the
HID response
Error label Value Meaning
ERR_OK 0000h Execution OK
Wrong command or wrong data parameters (command rejected)
NOT_READY_TO_UPDATE FB40h Wrong command bytes
BAD_FIRMWARE_SIGNATURE_ERROR FB41h Wrong data parameters
CRC_ERROR FB9Bh Wrong checksum
WRITE_ERROR FB9Ah Wrong EEPROM write
Other codes FFxxh not listed are RFU
Table 50 – Boot-loader HID error codes
Typical Download Operations
The following steps give the list of the commands to be used for a standard download
operation:
• The “Start download” command is used to initiate the download operation
• The “Reset reader” command is used to activate the boot-loader.
• The “Download firmware file” command is used several times to send the
successive firmware binary packets to the device
• The “End download” command is used to complete the download operation
• The “Reset reader” command is used to activate the new firmware.
Downloaded File Format
The beginning of the file must contain the information needed to program the firmware and
to verify it.
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