BBV FBM - Page 49

49
Data FROM keypad NO lens keys pressed, joystick centred
Data FROM keypad, lens keys pressed or joystick moved
0xA0 (Keypad 1) MSB (B7) Set Keycode MSB (B7) Cleared Checksum MSB (B7) Cleared
Key codes will be all keys except Iris, Focus or Zoom.
Bits of Byte 1, 2 & 3 represent PTZFI movement:
BYTE 1
0xA7 KEY CS 0x0A KEY CS 0xA1 KEY CS 0xA2 KEY CS
0xA0 (Keypad 1)
MSB (B7) Set
0x30 (PTZFI) MSB
(B7) Cleared
BYTE 1 MSB (B7)
Cleared
BYTE 2 MSB (B7)
Cleared
BYTE 3 MSB (B7)
Cleared
CHECKSUM MSB
(B7) Cleared
IRIS OPEN ZOOM OUT ZOOM IN TILT UP TILT DOWN PAN LEFT PAN RIGHT
B6 B5 B4 B3 B2 B1 B0
BYTE 2
BYTE 3
IRIS CLOSE FOCUS FAR FOCUS NEAR PAN SPEED B3 PAN SPEED B2 PAN SPEED B1 PAN SPEED B0
B6 B5 B4 B3 B2 B1 B0
ZOOM SPEED
B2
ZOOM SPEED
B1
ZOOM SPEED
B0
TILT SPEED B3 TITL SPEED B2 TITL SPEED B1 TITL SPEED B0
B6 B5 B4 B3 B2 B1 B0