Allied Vision Technologies AVT Stingray Manual de instrucciones descargar pdf (Pagina 138)

Description of the data path

STINGRAY Technical Manual V2.2.0

137

Example of parameter list:

The exact sequence is:

Block-write (this needs to be a functionality of the underlying software stack

(e.g. AVT FirePackage). It may not be available for third party IIDC software

stacks.) of list to advanced feature address

Camera timing behavior is like this:

Standard Update (IIDC)

In the Standard Update (IIDC) mode single parameter are sent to the cam-

era.

• Standard Update (IIDC) shows same behavior as MARLIN

• Parameter will be sent from host to camera and will be activated as soon

as possible without interruption of the transfer

• If the host updates more than one parameter (without block write) the

parameters may become active in different images

• Standard Update (IIDC) can be combined with the new parameter

update timing modes

Address Value

0xF0F0081C 0x80000100

0xF0F00820 0x800000ac

0xF0F00818 0x82000001

... ...

Table 44: Example of parameter list

Fast Parameter Update Timing Quick Format Change Mode (QFCM)

After block write command is processed in the

camera all changed parameters are valid for the

available next image. Frame rate is constant.

After transfer of the parameter list via block write

a current transfer will be finished. A started expo-

sure will be interrupted until the microcontroller

has processed the list and copied it into the FPGA.

Exposure of the next image with new parameters

is started.

There may be a gap between two images.

Table 45: Parameter-List Update: comparison of standard timing and QFCM

1 2 ... 133 134 135 136 137 138 139 140 141 142 143 ... 308 309

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Allied Vision Technologies AVT Stingray Manual de instrucciones Pagina 138