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14
Set Format Frequency
Function Description:
Set Frequency
Frequency Support :
720p : 50Hz, 59.94Hz, 60Hz
1080i
: 50Hz, 59.94Hz, 60Hz
1080p : 23.98Hz, 24Hz, 25Hz, 29.97Hz, 30Hz, 50Hz, 59.94Hz, 60Hz
NTSC : 59.94Hz
PAL : 50Hz
Command
Byte
Name
Value
Comment
0
Command Length
0x08
1
Check Code 1
0x50
2
Check Code 2
0x47
3
Check Code 3
0x33
4
Device ID
0xff
5
Command ID
0x12
6
Command
Parameter 1
0x01
01 : 23.98
02 : 24
03 : 25
04 : 29.97
05 : 30
06 : 50
07 : 59.94
08 : 60
7
Check Sum
unsigned char chksum=0;
for (int i=0; i<bu+i){
= buf[i];
if (chksum>0xff)
chksum =
chksum–0xff–1;}
Acknowledgement character
0
ACK/NACK
0xaa/0x55 ACK: 0xaa
Command Value is right
NACK: 0x55
Command Value is error.
Receive
Содержание AV-GM0993-S1
Страница 1: ...3G HD SD SDI Pattern Generator with Serial Control P N AV GM0993 S1...
Страница 12: ...11...
Страница 14: ...13 2 Check Sum 0xad 0x58 Example Command 0x08 0x50 0x47 0x33 0xff 0x11 0x01 0xe3 Acknowledgement 0x03 0xaa 0xad...
Страница 29: ...28...