UK Timecode Systems Ltd. Unit 6, Elgar Business Centre, Moseley Road, Hallow, Worcester.
WR26NJ. UK
TCRN=n
Sets the Timecode to run (n=1) or freeze (n=0).
Frame Rate *
TCFR?
Returns the current frame rate (Frames per Second) and whether using
Drop-Frame encoding of the timecode data. Returns TCFR=n,d where n is the FPS
value*1001 and d is a flag of whether using drop-frame encoding or not;
24000,0 = 23.98 fps (Non Drop-Frame)
24024,0 = 24 fps
25025,0 = 25 fps
30000,0 = 29.97 fps
30000,1 = 29.97 fps Drop-Frame
30030,0 = 30 fps
30030,1 = 30 fps Drop-Frame
The function will accept double frame rates, as follows but will return the standard
rate value in response and for subsequent queries.
48000,0 = 47.96 fps (Non Drop-Frame)
48048,0 = 48 fps
50050,0 = 50 fps
60000,0 = 59.94 fps
60000,1 = 99.94 fps Drop-Frame
60060,0 = 60 fps
60060,1 = 60 fps Drop-Frame
TCFR=n,d
Sets the current frame rate & drop frame to the values n,d as in the list
above. The return value must be checked as illegal values will be ignored or
changed to the nearest value.
If changing the frame rate then the TV Sync standard may also change. It is
important that the TV Sync value must be read and displayed after any changes to
the FPS.
Genlock or Sync Standard
GLSD?
Returns the current TV sync (Genlock) method as a string GLSD=n
where n is an ASCII 0 through 13 where;
0 = Off
1 = PAL
2 = NTSC
3 = 720p
4 = 720p x2 (double rate)
5 = 1080i
6 = 1080p
7 = 1080p x2
8 = LTC (Timecode)
9 = 44.1 KHz Wordclock
10 = 88.2 KHz Wordclock
11 = 48 KHz Wordclock
12 = 96 KHz Wordclock
13 = 192 KHz Wordclock
