Chapter 2
24
Variable-Scan Signals (Area-Scan Mode Only)
For variable-scan video signals (area-scan operations only), the
horizontal (line) and vertical (frame) syncs come directly from the
video source. Two inputs are provided on connector J1 to accept
separate horizontal and vertical sync signals. LINE_SYNC (pin 2) is
used to indicate the start of a line. FRAME_SYNC (pin 4) is used to
indicate the start of a frame.
By default, the DT3152-LS uses the rising edge of the external sync
signals to reset the horizontal and vertical counters. In cases where
the video is referenced to the falling edge of the external LINE_SYNC
and FRAME_SYNC signals, you can invert the sync signals on the
DT3152-LS board using software.
A variable-scan acquisition is initiated and controlled like any other
single or multiple frame acquisition.
illustrates
variable-scan timing and data storage.
Содержание DT3152-LS
Страница 1: ...MACH Series UM 16481 F DT3152 LS User s Manual ...
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Страница 16: ...About this Manual xvi ...
Страница 17: ...1 1 Overview Features 2 Supported Software 4 Accessories 6 ...
Страница 142: ...Chapter 4 126 ...
Страница 143: ...127 5 Troubleshooting General Checklist 128 Service and Support 132 If Your Board Needs Factory Service 136 ...
Страница 153: ...137 A Specifications ...
Страница 156: ...Appendix A 140 ...
Страница 157: ...141 B Connector Pin Assignments Connector J1 Pin Assignments 142 Connector J2 Pin Assignments 144 ...
Страница 162: ...Appendix B 146 ...
Страница 192: ...Appendix C 176 ...
Страница 193: ...177 D Asynchronous Reset Cameras ...
Страница 196: ...Appendix D 180 ...
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