Configuring the Camera
4-18
Basler A400k
DRAFT
Frame Period CSR
Note:
The frame period can be set by writing a floating point value to the Absolute Frame Period
field or by writing an integer value to the Raw Frame Period field. Refer to Section
for an
explanation of the difference between these two fields.
Register Base Address:
0x1680
Field Name:
Register Status
Offset:
0x0000
Size:
1 Byte
Type:
Read only
Description:
The integer value in this field indicates the status of this control register:
0x00 = The register is not available
0x01 = The register is available. All related settings are OK
0x80 = A value in this register is set out of range
Field Name:
Absolute Frame Period
Offset:
0x0001
Size:
4 Bytes
Type:
Read / Write
Description:
Writing a floating point value to this field sets the frame period in µs. For example, if the
value in this field is set to 71.1, the frame period would be 71.1 µs.
The range of possible settings depends on the area of interest (AOI). See formulas 1 and
2 in Section
. At the full AOI width (2352 columns) and the minimum AOI height (2
lines), the possible range of frame period settings is from 71.04 µs for an A402k, 35.76 µs
for an A403k, 35.76 µs for an A404k set for 4 tap output or 18.24 µs for an A404k set for 8
tap output to 19.12 s. At the full AOI width (2352 columns) and the maximum AOI height
(1726 lines), the possible range of frame period settings is from 40.90 ms for an A402k,
20.59 ms for an A403k, 20.59 ms for an A404k set for 4 tap output or 10.40 ms for an A404k
set for 8 tap output to 19.12 s in increments of 0.01.
The value in this field is a standard IEEE-754 single precision (32 bits) floating point num-
ber.
See Section
for more information about the frame period.
Field Name:
Absolute Min
Offset:
0x0005
Size:
4 Bytes
Type:
Read only
Description:
Minimum allowed floating point value for the absolute frame period setting.
The value in this field is a standard IEEE-754 single precision (32 bits) floating point num-
ber.
Field Name:
Absolute Max
Offset:
0x0009
Size:
4 Bytes
Type:
Read only
Description:
Maximum allowed floating point value for the absolute frame period setting.
The value in this field is a standard IEEE-754 single precision (32 bits) floating point num-
ber.
Field Name:
Raw Frame Period
Offset:
0x000D
Size:
4 Bytes
Type:
Read / Write
Description:
Writing an integer value to this field sets the frame period.
The value can range from 1 (0x00000001) to 4194303 (0x003FFFFF).
The integer value represents a multiplier and the actual frame period is equal to the value
in this field x 4.56 µs. For example, if the value in this field is set to 4 (0x00000004), then:
Frame Period = 4 x 4.56 µs
Frame Period = 18.24 µs
The 4 bytes in this field are interpreted as follows:
Byte 1 = Low byte of the raw value
Byte 2 = Mid byte of the raw value
Byte 3 = High byte of the raw value
Byte 4 = Always 0x00 (not used)
See Section
for more information about the frame period.
Summary of Contents for A400K
Page 1: ...Basler A400k USER S MANUAL Document Number DA00062410 Release Date 27 September 2007 ...
Page 4: ......
Page 25: ...Camera Interface Basler A400k 2 9 DRAFT Figure 2 5 A402k Camera Frame Grabber Interface ...
Page 26: ...Camera Interface 2 10 Basler A400k DRAFT Figure 2 6 A403k Camera Frame Grabber Interface ...
Page 27: ...Camera Interface Basler A400k 2 11 DRAFT Figure 2 7 A404k Camera Frame Grabber Interface ...
Page 52: ...Camera Interface 2 36 Basler A400k DRAFT ...
Page 154: ...Configuring the Camera 4 54 Basler A400k DRAFT ...
Page 168: ...Troubleshooting 6 10 Basler A400k DRAFT ...
Page 172: ...Feedback iv Basler A400k DRAFT ...
Page 176: ...Index viii Basler A400k DRAFT ...