神龙卡如何实现PAL/NTSC切换?(100分)

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nisf

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GUEST, unregistred user!
各位大哥,用神龙卡如何编程实现PAL/NTSC切换?
 
#define FMPF_VGA 0x0000
#define FMPF_TV 0x0001
#define FMPF_NTSC 0x0000 // TV is NTSC
#define FMPF_PAL 0x0002
#define FMPF_ONETOONE 0x0000 // No scaling applied to source size
#define FMPF_SCALE 0x0004

do
fmp set flag 1051(41B in hex) value 1 -> send to TV
fmp set flag 1051(41B in hex) value 0 -> send to VGA
fmp set flag 1051(41B in hex) value 3 -> send to TV and it's PAL
fmp set flag 1051(41B in hex) value 7 -> send to TV+PAL+SCALE
fmp set flag 1051(41B in hex) value 1 -> send to TV+NTSC
 
接受答案了.
 
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