Related Manuals for MityCAM MityCAM-B2521
Summary of Contents for MityCAM MityCAM-B2521
- Page 1 MityCAM-B2521 and MityCAM-B1910 User Manual 60-000007 May 12, 2015 www.criticallink.com...
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Page 2: Table Of Contents
1.3.1 Sensor Size ................................5 1.3.2 Sensor Readout Order ............................6 1.3.2.1 MityCAM-B1910 ..............................6 1.3.2.2 MityCAM-B2521 ..............................6 2 Continuous High Speed Operation via Camera Link ................... 7 2.1 Expanded 8-bit Mode (8 bit x 10 pixels) ........................7 2.2 Expanded 16-bit Mode (16 bit x 5 pixels) ......................... - Page 3 14 Connecting via RNDIS to a Windows PC ......................26 15 Revision History............................27 Figures Figure 1 MityCAM-B2521 Readout Order ........................6 Figure 2 Potential Leakage / Blooming with Reduced Vertical ROIs ................9 Figure 3 CIS Snapshot Control Window ........................11 Figure 4 Update GPIO Pin States ..........................
- Page 4 MityCAM-B1910/B2521 User’s Manual Table 7 Range of Frame Interval Times ........................9 Table 8 Allowed Exposure Times ..........................10 Table 9 Row Times per SCLK frequencies for 1910 and 2521 Cameras ..............12 Table 10 GPIO Modes ..............................12 Table 11 Camera Link GPIO output configuration commands ................... 14 Table 12 Global Shutter Timing Parameters .......................
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Page 5: Introduction
MityCAM-B1910/B2521 User’s Manual 1 Introduction The purpose of this document is to outline the specific features of the MityCAM-B1910 and MityCAM-B2521 cameras. 1.1 Additional Documentation In addition to this document, the following documents are also useful / pertinent to the use and operation of the MityCAM-B1910 and MityCAM-B2521 cameras. -
Page 6: Sensor Readout Order
For maximum frame-rate, the frame grabber must perform the unwinding of the interleaved rows. Figure 1 MityCAM-B2521 Readout Order The camera can also be configured to output in raster order. For information on this mode and the limitations on the camera, see section 10.1 “Pseudo-One Port Mode.”... -
Page 7: Continuous High Speed Operation Via Camera Link
MityCAM-B1910/B2521 User’s Manual 2 Continuous High Speed Operation via Camera Link This section details setting up full resolution, high speed operation in each Camera Link configuration. Pay careful attention to the clock and frame intervals that are being set. Failure to set an appropriate clock or frame interval will overflow the FPGA with sensor data resulting in undefined output. -
Page 8: Base 16-Bit Mode (16 Bit X 1 Pixel)
ROI must be centered on the middle row (columns don’t need to be centered; only rows) ROI height must be even 3.1.2 MityCAM-B1910 The maximum resolution of the sensor is 1920x1080. There are no other specific restrictions for the MityCAM-B1910. Page 8 of 27 60-000007 May 12, 2015... -
Page 9: Mityviewer Restrictions
MityCAM-B1910/B2521 User’s Manual 3.2 MityViewer Restrictions The ROI must meet the above specified requirements when using the MityViewer. 3.3 Important Note Rolling shutter starts exposure by sending a reset pointer row-by-row through the selected area. After some amount of time, the rows are read out. When rows are not reset/read out, they will continue to accumulate charge. -
Page 10: Exposure
MityCAM-B1910/B2521 User’s Manual 4.2 Exposure For a given Frame Interval of N row times, the exposure time must be limited according to Table 8. For externally triggered modes, N must be limited to be less than 262143 + ROI Height... -
Page 11: Mityviewer
MityCAM-B1910/B2521 User’s Manual 4.3.2 MityViewer The resolution of time in MityViewer is milliseconds. Adjust the values using the boxes provided on the CIS Snapshot Control window: Figure 3 CIS Snapshot Control Window The frame interval takes precedence when setting values. If exposure is configured for 500ms, and the interval is configured for 100ms, the exposure will be reduced to support the 100ms frame interval. -
Page 12: Sclk
5 SCLK There are a fixed number of SCLK frequencies available. These SCLK values directly impact the row time. There are 2624 SCLK cycles per row for the MityCAM-B2521. There are 2464 SCLK cycles per row for the MityCAM-B1910. Use the table below to convert the number of rows into a row time. -
Page 13: Mityviewer
MityCAM-B1910/B2521 User’s Manual 6.1.2 MityViewer To place a pin in Input mode, select “In” from the drop down selection box. To read back the current state, press “Update.” Pins which are being driven high are denoted with an “x” pins which are low are left blank. -
Page 14: Camera Link
The external trigger pulse width should be at least one row time wide, and less than the number of row times in the configured ROI. For MityCAM-B2521, that is ½ the number of rows in the ROI height. 7.1.2 Global Shutter To maximize the potential trigger frequency supported by the camera and due to sensor control requirements, exposure begins and ends at different times depending on the length of exposure. -
Page 15: Figure 5 Global Shutter Exposure (Exposure Less Than Roi Height+16 Row Times)
MityCAM-B1910/B2521 User’s Manual Figure 5 Global Shutter Exposure (Exposure less than ROI Height+16 row times) Figure 6 Global Shutter Exposure (Exposure greater than ROI Height+16 row times) Figure 7 Global Shutter Exposure is Sampled on a Row Time (1 row of jitter possible) -
Page 16: Configuration
MityCAM-B1910/B2521 User’s Manual ������ + 16 − �� |�� ≤ ������ + 16 ��������ℎ�� ������ ������ ��������ℎ�� �� = �� + �� exp_���������� ������������ ������ 0|�� > ������ + 16 ������ ��������ℎ�� The first class essentially dictates that the exposure start time is the ROI... -
Page 17: Mityviewer
MityCAM-B1910/B2521 User’s Manual 7.2.2 MityViewer On the GPIO tab of the CIS Calibration Window, set Pin 1 to input and press the checkbox: Figure 8 MityViewer CIS Calibration Window Configured for External Trigger In the log, the following lines will appear:... -
Page 18: Figure 10 Mityviewer Snapshot Control Window, Configure For Continuous Capture
MityCAM-B1910/B2521 User’s Manual On the Snapshot Control, select Continuous, and set the desired exposure time. Frame interval is ignored when in external trigger mode: Figure 10 MityViewer Snapshot Control Window, Configure for Continuous Capture Select “Start Capture” to arm the camera. Applying external triggers will begin updating the frame. -
Page 19: Shutter Strobe
MityCAM-B1910/B2521 User’s Manual 8 Shutter Strobe The shutter strobe is a logical output that can be used to synchronize an external device to the beginning of exposure of the camera. You can select any of the 4 GPIO pins to generate the shutter strobe signal. -
Page 20: Global Shutter
MityCAM-B1910/B2521 User’s Manual The time between the strobe and the actual beginning of exposure should be 1 row time. 8.2 Global Shutter In global shutter mode, the strobe’s rising edge denotes the actual beginning of frame exposure. The strobe width corresponds to the duration of exposure. -
Page 21: Camera Link
MityCAM-B1910/B2521 User’s Manual Figure 13 “Shutter” Strobe Selection in MityViewer GPIO Configuration 8.3.2 Camera Link The following example will set IO 1 to create a shutter signal. Table 13 Camera Link Commands for Configuring GPIO to Generate Shutter Strobe Command Meaning <SETD 1 1>... -
Page 22: Camera Link
MityCAM-B1910/B2521 User’s Manual 9 Camera Link There are 5 different Camera Link output modes supported by the MityCAM-B2521 and the MityCAM-B1910. The pixel clock for the Camera Link output is currently fixed at 85MHz. This is not configurable. DVAL is not output. -
Page 23: Camera Link Configuration
This section covers special modes of operation specific to the MityCAM-B2521. 10.1 Pseudo-One Port Mode Pseudo-One Port mode allows the MityCAM-B2521 to operate as a raster order camera. This allows it to be compatible with frame grabbers which cannot perform row reordering operations as is needed when this mode is disabled. -
Page 24: Limitations
There are currently no special configuration modes for the MityCAM-B1910. 12 Network Configuration There are 2 TCP/IP (IPV4) network interfaces currently used by the MityCAM-B1910 and MityCAM-B2521, namely USB and GigE. For all I/O options, a USB2.0 port is available that runs the Remote Network Driver Interface Specification (RNDIS) with a fixed, static IP address configured from the factory. -
Page 25: Firmware Upgrade
1 minute to reconnect the network web interface. 13 Firmware Upgrade Recent versions of the MityCAM-B2521 and MityCAM-B1910 allow upgrading the firmware via the network interface. Details for acquiring the firmware and downloading the firmware to the camera are available on the... -
Page 26: Connecting Via Rndis To A Windows Pc
MityCAM-B1910/B2521 User’s Manual 14 Connecting via RNDIS to a Windows PC 1) Open the Network Connections dialog; it may be found by selecting Control Panel -> Network and Internet -> Network Connections. 2) Select and ‘right-click’ the “USB Ethernet/RNDIS Gadget #X” icon (underlined in red) and then select “Properties”... -
Page 27: Revision History
Figure 17 Static IP Configuration Settings 5) The USB RNDIS device is now configured for use with the MityCAM. Note that you can connect to the camera using SSH and SCP protocols. There is also a basic web interface for gathering serial number data and performing firmware upgrades.
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