The host uses this command to start sending unsecured files to the device for storage or processing. It is similar to Start Send File to Device (Secured) - Command 0xD811 but is used to send a different subset of file types that do not impact device security. Refer to Table XXX to determine which file type can use unsecure command. This command is paired with Start Get File from Device - Command 0xD821, which the host can use to retrieve files. However, some file types are “one way only” and cannot be retrieved using that command after the host sends them to the device.
The sequence of events is as follows:
For image data, the file must be either BMP format or Magtek signed image format, maximum 320px by 240px, with color depth 16 color, 256 color, 16-bit color, or 24-bit color. Images smaller than the maximum size are centered on the display. Maximum size is 160KB per slot, but images can span multiple slots as shown below. The maximum sizes for each slot are 640KB for slot 1, 480KB for slot 2, 320KB for slot 3, and 160KB for slot 4. Loading an image that overwrites any portion of an existing image will delete that image.
Beginning of any wrappers, at minimum including Request Message
D812 = Start Send File to Device (Unsecured) - Command 0xD812
81
04
File ID from Table XXX
B
R
A2
var
File transfer properties
T
R
/81
var
Length of File Payload. This is the length of the File Payload parameter in the Data File Message the host sends to the device.
B
R
/82
01
Hash Checksum Type
0x04 = SHA-256
B
R
/83
20
Hash Checksum
Anticipated checksum calculated against the File Payload, according to the standard specified in Hash Checksum Type.
B
R
A3
var
File Description
The host should populate this value to help identify the file using Get File Info from Device. - Command 0xD825
T
R
/81
var
File Name
Maximum length 32 bytes
Reserved for future use. Leave empty.
B
O
Null
/83
var
File Version
Maximum length 7 bytes
Reserved for future use. Leave empty.
B
O
Null
/84
var
File Date
Maximum length 20 bytes
Reserved for future use. Leave empty.
B
O
Null
87
01
Reserved for future use. Leave empty.
B
O
Null
End of any wrappers, at minimum including Request Message
Beginning of any wrappers, at minimum including Response Message
D812 = Start Send File to Device (Unsecured)- Command 0xD812
No parameters.
End of any wrappers, at minimum including Response Message #
If the request started successfully, the Request Status in the message wrapper is OK, Started / Running, All good / requested operation was successful.
Note: For additional support, please contact MagTek Support.
AA 00 81 04 01 07 D8 12 84 44 D8 12 81 04 02 00 00 00 A2 2B 81 04 00 02 58 38 82 01 04 83 20 D5 B8 BF 2F 3A 15 D9 EE 1D 0D E5 8E DD 68 37 73 18 51 C7 3C 3D 79 58 2B A6 07 90 5C 2B 86 3C E5 A3 0A 81 08 30 32 30 30 30 30 30 30 87 01 01
AA 00 81 04 82 07 D8 12 82 04 00 00 00 00
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