5-14 CUSTOM_DEFAULTS
Description: Two optional operations: 1) Write current setting to Custom Defaults, or 2) Set the
parameters to custom default values.
Packet Format
Identifies this opcode type.
Bit 0: Identifies transmit status
Bit 6-1: Unused
Bit 7: Command source
Bit 0:
0=First time packet is sent
1= Subsequent transmission
Bit 7: always be 1(message is from
the host)
All unused bits recommend to be set
to 0.
‘S’: Write to Custom Defaults
‘L’: Restore Custom Defaults
2's complement sum of message
contents excluding checksum.
For example:
1) Write to Custom Defaults:
2) Restore Custom Defaults:
Host Requirements
The host sends this command to program or restore the custom default parameter values.
Scanner Requirements
Upon receiving this command, the scanner writes/stores the current parameter settings to the custom
defaults buffer. They can be recovered at any time by sending a restore action.
If the restore action is requested, reset all default parameters as follows:
If custom defaults were set by sending Write to Custom Defaults command, send Restore Custom
Defaults command to retrieve and restore the scan scanner custom default settings.
If no custom defaults were set, send Restore Custom Defaults to restore the factory default values.