BYTE
DATA
1
F8H
2
Address in hex
3
"v"
Z2 (MS nibble) 30H
4
- 3FH
Z1
5
30H - 3FH
Z0 (LS nibble)
6
30H - 3FH
F2 (MS nibble)
7
30H - 3FH
F1
8
30H - 3FH
F0 (LS nibble)
9
30H - 3FH
Terminator and
10
Checksum
3.8
Lens Position Feedback Commands
FUNCTION
REQUEST POSITION
The response to this command is shown in the table below:
BYTE
DATA
1
F8H
2
Address in hex
3
"V"
Z2 (MS nibble) 30H
4
- 3FH
Z1
5
30H - 3FH
DESCRIPTION
Sync character
Camera address (01H - DFH)
Lower case "v"
Position data is 30H ored with data nibble
Z11, Z10, Z09, Z08 of zoom lens position data.
Position data is 30H ored with data nibble
Z07, Z06, Z05, Z04 of zoom lens position data.
nibble) )
Position data is 30H ored with data nibble
Z03, Z02, Z01, Z00 of zoom lens position data.
Position data is 30H ored with data nibble
F11, F10, F09, F08 of lens focus position data.
Position data is 30H ored with data nibble
F07, F06, F05, F04 of lens focus position data.
nibble) )
Position data is 30H ored with data nibble
F03, F02, F01, F00 of lens focus position data.
80H - 8FH Most significant nibble is always 8. Least significant (LS) nibble is the
XOR of all previous bytes (LS nibble only) except for leading autobaud character
F8H.
Byte #3
Byte #4
"?"
"V"
DESCRIPTION
Sync character
Camera address (01H - DFH)
Upper case "V"
Position data is 30H ored with data nibble
Z11, Z10, Z09, Z08 of zoom lens position data.
Position data is 30H ored with data nibble
Z07, Z06, Z05, Z04 of zoom lens position data.
DESCRIPTION
Get position. ASCII character "V" followed by the "?"
character.
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