HL Calculate and Download Video Data

NI 5431 Composite Video Generator

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NI 5431 Composite Video Generator
HL Calculate and Download Video Data

This high-level VI calculates all the video lines corresponding to a specified video format in block mode and downloads the data to the NI 5431. It also exports the sequence information needed by HL Configure Sequencer. The example Basic Create Composite Signal from BMP Image shows how to correctly use this VI.

instrument handle in is the ViSession handle that you get from the NI-FGEN Initiate or Initiate With Options VIs. The handle identifies a particular instrument session.
error in is a cluster that describes the error status before this VI executes. If error in indicates that an error occurred before this VI was called, this VI may choose not to execute its function, but just pass the error through to its error out cluster. If no error has occurred, then this VI executes normally and sets its own corresponding error message. Using error in and error out clusters is a convenient way to check errors and to specify execution order by wiring the error output from one subVI to the error input of the next.
Video type selects the video format to be used. Use the up and down arrows to select the video format. The formats are listed below:
M-NTSC Standard NTSC format as used in countries such as the US or Japan
Standard PAL including B/G/H and I type as used in most of Europe
M-PAL as used in Brazil
N-PAL as used in Argentina
Combination N-PAL as used in parts of South America
SECAM as used in countries such as France
M-NTSC (2) a different version of M-NTSC with no color burst in the vertical blanking interval
Digital sync enables the insertion of the four synchronization bits in the four lsbs of the I16 binary data of the composite signal.
Instrument handle out is the VISession handle that you get from the NI-FGEN Initiate or Initiate With Options VIs. The handle identifies a particular instrument session.
sequence length is the output that should be connected to the corresponding input of HL Configure Sequencer.
Waveform handles array is the output that should be connected to the corresponding input of the HL Configure Sequencer VI.
error out is a cluster that describes the error status after this VI executes. If an error occurred before this VI was called, error out is the same as error in. Otherwise, error out shows the error, if any, that occurred in this VI. Use the error handler VIs to look up the error code and to display the corresponding error message. Using error in and error out clusters is a convenient way to check errors and to specify execution order by wiring the error output from one subVI to the error input of the next.
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