Mindeo FS580, User Manual

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75
5-2 BEEP
Description: Ask the scanner to sound the beeper.
Packet Format
Length Opcode Status Beep Code Checksum
0x04 0x42
Field Descriptions
Field Name Format Size Description
Length 0x04 1 Byte Length Field
Opcode 0x42 1 Byte Identifies this opcode type.
Status
Bit 0: Identifies transmit status
Bit 6-1: Unused
Bit 1-7: Command source
1 Byte
Bit 0:
0=First time packet is sent
1= Subsequent transmission attempts
Bit 7: always be 1(message is from the host)
All unused bits recommend to be set to 0.
Beep Code See Table 5-3 . 1 Byte Number that identifies a beep sequence.
Checksum
2's complement sum of message
contents excluding checksum.
2 Bytes Checksum of message.
This command instructs the scanner to sound the beep sequence indicated by the Beep Code field.
In Table 5-3, Duration (a relative term) is the length of a sound, Pitch (a relative term) is the pitch of the
sound, and Number of Beeps indicates the times of a repeated beep pitch at the specified duration.
Table 5-3 Beep code definitions
Beep
Code Duration
(ms)
Pitch
No. of
beeps Beep
Code Duration
(ms)
Pitch No. of beeps
0x00 72 High 1 (Short) 0x0D 1569 High 4 (Long)
0x01 193 High 2 (Short) 0x0E 2011 High 5 (Long)
0x02 315 High 3 (Short) 0x0F 241 Low 1 (Long)
0x03 436 High 4 (Short) 0x10 684 Low 2 (Long)
0x04 558 High 5 (Short) 0x11 1126 Low 3 (Long)
0x05 72 Low 1 (Short) 0x12 1569 Low 4 (Long)
0x06 193 Low 2 (Short) 0x13 2011 Low 5 (Long)
0x07 315 Low 3 (Short) 0x14 382 Hi-Lo-Hi-Lo 4 (Fast Warble)
0x08 436 Low 4 (Short) 0x15 965 Hi-Lo-Hi-Lo 4 (Slow Warble)
0x09 558 Low 5 (Short) 0x16 191 Hi-Lo 2 (Mix 1)
0x0A 241 High 1 (Long) 0x17 191 Lo-Hi 2 (Mix 2)
0x0B 684 High 2 (Long) 0x18 292 Hi-Lo-Hi 3 (Mix 3)
0x0C 1126 High 3 (Long) 0x19 282 Lo-Hi-Lo 3 (Mix 4)
For example: Host sends beep command to scanner (Beep code: 0x06)
Length Opcode Status Beep Code Checksum
0x04 0x42 0x80 0x06 0xFF 0x34
The method of calculating Checksum: