Customizable Formats And Modes On; The A101Fc Color Camera - Basler A101f User Manual

3.12.4 Customizable Formats and Modes on

the A101fc Color Camera

The following customizable video formats and modes are available on the A101
Format_7, Mode_0
Format_7, Mode_0 is available on the A101
its output will be monochrome at 8 bits/pixel and the camera will output the raw data for each pixel
(see Section 3.11.2). This mode is used to enable and set up the area of interest (AOI) feature
described in Section 3.8.
The maximum allowed frame rate in this mode depends on the size of the AOI. The formula shown
on page 4-15 can be used to calculate the maximum allowed frame rate for any size AOI.
When the camera is operating in Format_7, Mode_0, the frame rate can be adjusted by setting
the number of bytes that are transmitted in each packet. The number of bytes per packet is set
using the BytePerPacket field of the BYTE_PER_PACKET control register that has been
established for Format_7, Mode_0.
The value that appears in the MaxBytePerPacket field of the PACKET_PARA_INQ control
register will show the maximum allowed setting for the bytes per packet. When the bytes per
packet is set to the maximum, the camera will transmit frames at the maximum allowed frame rate
for the AOI size you have defined. By default, the bytes per packet are set to the maximum.
The maximum bytes per packet will vary depending on the size of the AOI. This occurs to avoid
image buffer under-runs. The rate of image data flowing out of the image buffer must be correctly
balanced against the amount of image data entering the buffer.
If you set the bytes per packet to a value lower than the maximum allowed, the camera will
transmit frames at a lower rate. The rate is calculated by the formula:
The value that appears in the UnitBytePerPacket field of the PACKET_PARA_INQ control register
will show the minimum allowed setting for the bytes per packet. The bytes per packet must not be
set lower than the minimum.
The minimum bytes per packet will vary depending on the size of the AOI. This occurs because
of hardware limits on the link layer controller.
Format_7, Mode_1
Format_7, Mode_1 is available on the A101
its output will be YUV (4:2:2) at an average of 16 bits/pixel. This mode is used to enable and set
up the area of interest (AOI) feature described in Section 3.8. The frame rate can be adjusted
using the same method as described for Format_7, Mode_0.
When the camera is operating in Format_7, Mode_0 or in Format_7, Mode_1, the
CUR_V_FRAME_RATE control register is not used and has no effect on camera op-
eration.
f
BASLER A101
DRAFT
fc
Frames/Sec. = -------------------------------------------------------------------------- -
Packets per Frame x 125 µs
fc
. When an A101 is operating in Format_7, Mode_0,
fc
1,000,000 µs
. When an A101 is operating in Format_7, mode_1,
fc
Operation and Features
:
fc
3-25