Principles of Operation
11
S
S
S
S
S
S
Sync Output Mode
Typically, the camera generates the sync signals (composite or
variable-scan) for the DT3162 board, and the board locks to them.
If this is not appropriate for your application or you are using a
progressive scan camera, you can enable sync output mode. If sync
output mode is enabled, the DT3162 board generates the sync output
signals to drive the camera or video device. The video signal from the
camera or video device is then digitized as usual, using the syncs
generated by the board as the sync basis.
You can enable or disable sync output mode through software. When
sync output mode is enabled, the vertical sync signal is output on pin
1 of connector J1 on the DT3162 board; the horizontal sync signal is
output on pin 2 of connector J1 on the DT3162 board. The sync signals
are normally output when sync output mode is enabled; however, if
expose/reset is enabled, the vertical sync does not occur until the
acquisition operation is started.
Note:
Pins 1 and 2 of connector J1 on the DT3162 provide sync
output signals only if sync output mode is enabled. If sync output
mode is disabled, these pins are used for sync inputs.
When sync output mode is enabled, specify the sync input source as
internal (composite) and the acquire type as progressive.
Using software, you can also specify the following settings if sync
output mode is enabled:
• The horizontal sync pulse width
−
Values range from 1 to
4095 pixels, in increments of 1. Setting this value determines the
time that the horizontal sync output pulse is in its active state
(determined by the sync polarity).
Содержание DT3162
Страница 1: ...DT3162 UM 19131 C User s Manual ...
Страница 4: ......
Страница 39: ...29 A Specifications ...
Страница 56: ...Appendix B 46 ...
Страница 57: ...47 C RS 170 and CCIR Specifications and the DT3162 RS 170 Specification 48 CCIR Specification 52 ...
Страница 66: ...Appendix C 56 ...
Страница 67: ...57 D Values for Use with the DT Active Monochrome Frame Grabber Control ...
Страница 76: ......
Страница 80: ......