Sofradir 1024-20C, Руководство пользователя

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9 Camera configuration and adjustment
9.1 User Control
Camera control is implemented over the serial transmit and receive lines for the Camera Link video interface and
packetized for the GigE video interface. The AtomGui sample application provides a user friendly interface for
camera control, although individual commands can be arranged to read and write registers directly for testing and
debugging purposes.
Note for Camera Link models: The AtomGui supports NI Frame Grabbers. If the user intends on using another
manufacturer Frame Grabber and still needs camera control, the serial interface can be changed from the
Camera Link serial lines to a separate serial interface requiring a Power Supply with Serial Cable accessory
(915288) and a camera setting change. The Power Supply with Serial Cable serial port can be connected to a
PC COM port and the AtomGui setup to use the PC COM port. Currently the serial port camera setting is not
available to the user and will need to be sent back unless the camera was purchased with this configuration.
Note for GigE models: The AtomGui cannot control the camera at the same time video is acquired. If the user
needs to control the camera while acquiring images, the GEV Player software can be setup as a Data Receiver
with Multicast streaming enabled. A description of the workaround is in Section 7.4 .
9.2 AtomGui application overview
The AtomGui sample application provides a user interface to control the camera. The GUI handles proper
command formation and communication with point and click simplicity. Section
10 outlines each of the GUI
screens while also displaying the read command byte mapping for each control.
9.3 Serial Command Interface overview
The Serial Command Interface utilizes the serial TXD and RXD signals within the video interface to exchange
status and configuration information. Allowing lower level functionality, the user can formulate commands and
interface with ATOM 1024 control registers directly. The user is then able to control FPGA operations for help in
design debugging and production testing. And, to read and write FPGA registers (e.g. current
operating/configuration settings) and SDRAM memory (e.g. test patterns, diagnostic frame captures), useful for
debugging and manufacturing purposes.
Serial command exchanges are initiated by the external controller, with responses and acknowledgements
generated by the ATOM 1024. The ATOM 1024 will not generate any asynchronous serial messages that are not
a direct response to an external command or query.
The serial interface settings are 57600 baud, 8 bit data, 1 stop bit, no parity, and no flow control. The ATOM 1024
receives data on the TXD signal and transmits data on the RXD signal. The TXD and RXD serial signals are 3.3V
LVTTL level signals and the TXD signal needs to be set high when the serial interface is idle.