Aurora Multimedia WACI NX-22, Reference Manual & Programming Manual

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The sequence is formatted as follows:
Offset Size (in 16
bit words) Ident. Name Description Sample
0 1 wFormat Format. 0100: No carrier
0000: Use carrier 0000
1 1 wFreq Carrier
frequency The formula below is
used to calculate this
value. 005C
2 1 wOnce Once size The number of on/off
pairs in the sequence
that is sent only once 0000
3 1 wRepeat Repeat size The number of on/off
pairs in the repeating
sequence 0004
4 2*wOnce aOnce Once
sequence The sequence that is
sent only once N/A
4 +
2*wOnce 2*wRepeat aRepeat Repeat
sequence The sequence that is
repeated 001C
09C4
0030
03CC
0030
03CC
0034
00D4
wFreq Calculation:
wFreq = 4.145146 * 10
6
/ Carrier_Freq
or
Carrier_Freq = 4.145146 * 10 6 / wFreq
In the above example, the wFreq value was 005C (or 92 decimal). So, the carrier frequency would be
Carrier_Freq = 4.145146 * 10
6 / 92 = 45 kHz
The data sequences consist of on/off timing pairs, and represent the number of cycles the emitter is turned on
and the number of cycles the emitter is turned off (The number of cycles is also known as the pulse width). In
the above example, the first pair is
001C:09C4
. This pair turns the emitter on for 28 (
001C
) cycles (or
28*(1/45000) sec = 0.622ms) and off for 2500 (
09C4
) cycles (2500*(1/45000) sec = 55ms).
IR_ListAllGroups ( )
Returns a string listing all groups.
Syntax
HRESULT IR_ListAllGroups(
[out, retval] BSTR* List
);
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