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MS925HC User’s Manual
2.9.2 Binary Check Character
Enable
Disable *
Once enabled, a checksum will be added to the end of each data to conduct X
or calculation. For Bluetooth
®
SPP& USB-VCP, the BCC is 1 byte. For
Bluetooth
®
HID, the BCC are 2 bytes.
Example:
The barcode data is “TEST” with terminator <CR><LF>
1. Bluetooth
®
SPP & USB-VCP:
Data Format = <T> + <E> + <S> + <T> + <CR> + <LF> + <BCC>.BCC =
54h ^ 45h ^ 53h ^ 54h ^ 0Dh ^ 0Ah = 11h
2. Bluetooth
®
HID:
Data Format = <T> + <E> + <S> + <T> + <Enter> + <BCC>BCC = 54h ^
45h ^ 53h ^ 54h ^ E7h = F1h
However, since control character cannot be displayed in Bluetooth
®
HID, BCC
will be converted into 2 bytes of characters.
As a result, the data will be: TEST + <Enter> + F + 1
