Specifications

sharpVISION™ Camera
sharpVISION™ VISION SDK
15
2.9. Read-out Speed and Pixel Format
The maximum readout speed depends on bit depth, although this restriction may not exist in
future cameras. Only 8 bit formats can run at 20 MHz; 16 bit formats are limited to 10 MHz or
lower. There is no advantage to using a lower readout speed. When you call
SvValidateSettings or SvSendCameraSettings, the readout speed is lowered if your image
format is 16 bits. A common mistake occurs when switching from a 16 bit format to 8 bit
format. If you want to run at the highest speed, you need to explicitly switch the readout
speed to 20 MHz. We suggest this approach: every time you change the format, change the
readout speed to the maximum. The driver will automatically lower the speed if necessary.
// Restore the read out speed to 20 MHz
SvSetParameter( &svCfg, SVP_IMGFORMAT, nFormat );
SvSetParameter( &svCfg, SVP_READOUT, SV_ROS_20MHZ );