SightLine 1500-OEM User manual
© SightLine Applications, Inc. i
ICD-1500-OEM
2022-05-31
Exports: Export Summary Sheet
EULA: End User License Agreement
Web: sightlineapplications.com
1Overview................................................................1
1.1 Additional Support Documentation.......................1
1.2 Sightline Software Requirements ..........................1
2Safe Device Handling..............................................1
31500-OEM Overview..............................................1
3.1 1500-OEM Specifications.......................................2
3.2 Hardware Revisions................................................2
3.3 Interface Protocol ..................................................2
3.4 Primary Input / Output ..........................................2
3.5 Functional Block Diagram ......................................3
3.6 1500-SOM ..............................................................3
3.6.1 Design Support.......................................................3
4Thermal Management ...........................................3
4.1 Heatsink Guidelines ...............................................3
4.2 Gap Filler (Thermal Grease) ...................................4
4.3Gap Pads ................................................................4
5Connector Summary ..............................................4
5.1 Connector J3 ..........................................................4
5.1.1 Analog Video Input.................................................5
5.1.2 Analog Video Out...................................................5
5.1.3 Ethernet .................................................................5
5.2 Connector J4 ..........................................................6
5.2.1 Internal Pullup on J4 Pins.......................................7
5.3 Connector J5: FPGA JTAG, USB, GPIO ....................7
5.4 Socket S1: MicroSD ................................................7
6Additional I/O.........................................................8
6.1 OEM Power............................................................8
6.2 Camera Power Considerations...............................8
6.3 VIOSEL - Setting IO Signal Levels............................9
6.4 LEDS .......................................................................9
6.5 Serial Ports.............................................................9
6.6 Test Points............................................................10
6.7 GPIO.....................................................................10
7Digital Video Input Description............................11
7.1 Overview..............................................................11
7.2 Adapter boards ....................................................11
7.3 Signal Levels.........................................................11
7.4 Synchronization Signals .......................................12
7.5 Video Formats......................................................12
7.6 Color Camera Data Input Signal Locations...........13
7.7 Grayscale Camera Data........................................13
7.8 Active Video Area and Blanking...........................13
7.8.1 Removing Blanking Lines and Pixels ....................14
8Questions and Additional Support.......................14
Appendix A - Missing Driver Chip ...................................15
Appendix B - Anti-Alias Filter..........................................15
Appendix C - Analog Video Noise Shielding....................16
Appendix D - Level Translators .......................................17
D1 Overview..............................................................17
D2 Recommended Level Translators.........................17
D3 Level Translation Overview..................................17
D4 Example: Driving a BOB-12009 with TXB0104 .....18
CAUTION: Alerts to a potential hazard that may result in personal injury, or an unsafe practice that causes damage to the equipment
if not avoided.
IMPORTANT: Identifies crucial information that is important to setup and configuration procedures.
Used to emphasize points or reminds the user of something. Supplementary information that aids in the use or understanding of the
equipment or subject that is not critical to system use.
ICD-1500-OEM
© SightLine Applications, Inc. ii
Revision History
Date
Description
2022-05-27
Added caution note to disconnect the power before connecting or disconnecting cables.
2022-04-05
Added noise shielding note for the analog output wires (TVOUT1/AGND) from the 1500-OEM to
Appendix C - Analog Video Noise Shielding.
2021-09-01
Added Appendix D - Level Translators. Filled in software signal names in GPIO table.
2020-02-11
Added serial port and GPIO tables in I/O section. Added camera power guidance sections.
2020-09-18
Added note that the USB communications interface is not available on connector J5.
2020-09-14
Add I2c bus speed (400 kHz) to Primary Input / Output section.
2020-01-08
Add section on Digital Video Input Signal.
2020-01-02
Corrected the processor P/N (DM8148 to DM3730) in the Interface Protocol section.
2019-10-17
Added voltage qualification note to specifications.
2019-03-22
Added Caution statement on board modifications.
2018-12-12
Updated Thermal Management section with temperature related commands in the IDD.
2018-09-10
Added voltage and power to spec table. Added supply voltage level compatibility statement for camera
boards.
2018-08-01
Added caution statement in the Connector section for powering up specific types of interface boards.
2018-07-26
Added Appendix C - Analog Video Noise Shielding
2018-06-12
Added Ethernet magnetics information.
2018-03-16
Added default direction and values of GPIO pins.
2018-03-06
Minor updates to VIOSEL.
2018-02-27
Updated SOM section.
2017-12-20
Updated Thermal Management section.
2017-12-05
Updated document to new format. Created new ICD document for 1500-OEM adapter boards.
2017-10-05
Split document into ICD-1500-OEM and ICD-1500-ADAPTERS. Minor diagrams, text, and tables syntax
edits.
2017-08-24
Cross reference power definitions, added clarification to serial port # and pin names as well a cross
references for easy lookup.
2017-07-18
Updated power input requirements.
2017-04-12
Fixed J4 pinout. Added more details regarding the serial port.
2016-08-15
Schematics moved to separate files, added Rev E information.
2015-10-19
Added 1500-mAB section.
2015-09-17
Updated 1500-AB connectors, added 1500-Sony table captions, added illustrations for 1500-Sony J3 Pin 1.
2015-09-15
Updated hardware overview, added IO block diagram, added accessories summary section, updated
connector details for 1500-Sony, corrected copyright.
2015-05-11
Formatting, minor text and table edits, fix 1500-AB J3 table, Copyright dates, added Revision History,
Figures and Table indexes.
ICD-1500-OEM
© SightLine Applications, Inc. 1
1Overview
Describes power requirements, thermal management, interface specifications, and connector pinouts
for the 1500-OEM video processing board.
CAUTION: Any customer modifications to SightLine OEM and adapter boards will void the warranty and can
potentially damage the board. Before attempting any modifications, please contact Support.
1.1 Additional Support Documentation
Additional Engineering Application Notes (EANs) can be found on the Documentation page of the
SightLine Applications website.
The Panel Plus User Guide provides a complete overview of settings and dialog windows located in the
Help menu of the Panel Plus application.
The Interface Command and Control (IDD) describes the native communications protocol used by the
SightLine Applications product line. The IDD is also available as a PDF download on the Documentation
page under Software Support Documentation.
1.2 Sightline Software Requirements
IMPORTANT: The Panel Plus software version should match the firmware version running on the
board. Firmware and Panel Plus software versions are available on the Software Download page.
2Safe Device Handling
CAUTION: To prevent damage to hardware boards, disconnect the power before connecting or disconnecting
cables including all FFC, FPC, and round wire (Molex) cables.
CAUTION: To prevent damage to hardware boards, use a conductive wrist strap attached to a good earth ground.
Before picking up an ESD sensitive electronic component, discharge built up static by touching a grounded bare
metal surface or approved antistatic mat.
31500-OEM Overview
The 1500-OEM from SightLine Applications is a small, low power, single-channel on-board video
processor for unmanned airborne or ground vehicles in ISR applications.
The system is capable of processing and streaming HD video outputs up to 720P. This product is
designed to add advanced capabilities to camera systems. It operates on video right at the source,
which is key for low latency performance and best video quality.
Figure 1: 1500-OEM Overview
ICD-1500-OEM
© SightLine Applications, Inc. 2
3.1 1500-OEM Specifications
Revision:
E
Dimensions:
1.48 in x 1.04 in (26.5 mm x 37.7 mm)
Weight:
7.6 grams
Voltage:
4.5 - 6 VDC OEM (5V nom)1
Power:
3 W (max) 2.5W (typical)
Drawing:
1500-OEM Drawings*
STEP File:
1500-OEM STEP Files*
*Includes all production release revisions.
All mounting holes support M1.6 screws.
IMPORTANT: The supply voltage level must be compatible with the camera adapter board and
connected cameras.
3.2 Hardware Revisions
Table 1: 1500-OEM Revision Changes
Board Revision
Changes
Rev E
•Added 2 GPIO ports on (J5) - GPIO 144 and GPIO 145.
•Onboard FPGA programming no longer requires external JTAG emulator hardware.
•Improved boot-time by three seconds.
•Replaced microSD card with smaller version.
•Added fourth mounting hole.
•Fixed USB hardware (J5)*.
Rev C
Initial production release.
*The USB communications interface is not currently available. Use of this feature is contingent on software updates.
3.3 Interface Protocol
The 1500-OEM shares the same interface protocol as other SightLine OEM platforms. The protocol is a
packet-based command and control interface (IDD). The protocol document is also available as a PDF
from the SightLine website.
The ARM core on the DM3730 is only lightly utilized during implementation. This provides customers
with a processor to implement other processing functions or protocol conversions, i.e., allows
communications through customized proprietary protocols.
3.4 Primary Input / Output
•4.5 - 6.0 VDC (5 VDC nominal)1
•Digital Video Input (16-bits + clocks)
•Analog Video In (x2)
•TTL Serial Ports (x3)
•10/100Base-T Ethernet
•I2C (3.3V, 400 kHz)
•7 GPIO
•On-board FPGA for advanced video signal processing
•USB 2.0 (contingent on software updates)
•MicroSD Card
1
A slightly extended input voltage range is possible with some tradeoffs. Contact Support for more information if this is
relevant to your application.
ICD-1500-OEM
© SightLine Applications, Inc. 3
3.5 Functional Block Diagram
Figure 2: 1500-OEM Functional Block Diagram
3.6 1500-SOM
The SOM hardware is a small profile (15 x 27 mm)
and low power (2.25W) Beacon EmbeddedWorks
Torpedo 3730 System-on-Module (p/n:
SOMDM3730-20-1780AGIR).
IMPORTANT: Do not remove the 1500-SOM
from the 1500-OEM board.
Figure 3: 1500-SOM Orientation
3.6.1 Design Support
SightLine actively supports customer development of new interface circuit boards that will optimize
integration of our video processors into production designs. The 1500-SOM is the smallest form factor
option to incorporate SightLine video processing functions into customer designs. Access to reference
design files for 1500-SOM carrier board (1500-OEM board) is provided under the terms of a simple
Hardware Design IP Agreement document. Contact Sales for more information.
4Thermal Management
4.1 Heatsink Guidelines
•Component temp range: -40°C to 85°C
•All hardware uses some form of mechanical heatsink.
•The 1500-OEM consumes approximately 2.5 watts of power. Most of the power used is by the
DSP + memory PoP (Part-on-Part) on the SOM.
•The blue stick-on heatsink included in the EVAL Kit facilitates bench testing. It can also be
purchased separately from Advanced Thermal Solutions (PN: ATS-52150P-C1-R0) or SightLine (PN:
SLA-1500-HSNK). It supports convective cooling when there is airflow.
1500-SOM
Command and Control Options
Serial (3) l GPIO (5) l I2C l Ethernet
Input 1
Digital Video
Input 2
Analog
NTSC/PAL
Switch for Single
Channel Processing
Input 3
Analog
NTSC/PAL
H.264 Video
10/100 Base T
Ethernet PHY
MicroSD
On-Board Video
Recording JPEG
Snapshots
Analog NTSC/PAL
Actual Size
ICD-1500-OEM
© SightLine Applications, Inc. 4
IMPORTANT: The blue stick-on heatsink is not intended for long term vehicle integration use. A
more robust solution should be designed and implemented by the integrator.
•When designing a custom heatsink for integration, it should provide a direct conducted path to a
significant thermal mass (typically the wall of a gimbal or housing).
•If there is enough airflow, multiple finned options are available including thermal epoxy for
mounting. Fin design should be selected based on airflow and available space.
IMPORTANT: The 1500-OEM does not have an automatic thermal processor shutdown. The
operating temperature of the unit can be read through the GetVersionNumber (0x00) command.
The temperature can also be reported continually using the SystemStatusMessage (0x87)
command. See the IDD for more information.
4.2 Gap Filler (Thermal Grease)
When possible, use some form of thermally conductive liquid gap filling material such as Arctic Silver
rather than an adhesive. Do not use thermal grease in conjunction with gap pads.
4.3 Gap Pads
Use some form of thermally conductive material for filling gaps between the hot components and the
heat sink. Examples such as the Bergquist VO Ultra Soft are recommended. Do not use gap pads in
conjunction with thermal grease.
5Connector Summary
Table 2: Connector Summary
Label
MFG Part Number
Function
Mates with:
J3
Molex 53398-1471
Analog video in/out, power, serial, Ethernet
Molex 51021-1400
J4
Hirose DF12B(5.0) 50DP-0.5V(86)
Serial, digital video, I2C, etc.
Hirose DF12B-50DS-0.5V(86)
J5
Molex 53398-1271
FPGA JTAG, USB (coming soon), GPIO
Molex 51021-1200
S1
JEA ST9S008V4AR1500
JMicro SD socket
Any Micro SD card
5.1 Connector J3
Analog Video, Power, Serial 0, Ethernet
Table 3: 1500-OEM J3 Pinout
Pin
Signal
Description
Pin
Signal
Description
1
Video In 0
Analog video input
8
Vin
Input 4.5 - 6.0 VDC
2
AGND
9
Vin
3
Video Out
Analog video output
10
DGND
4
AGND
11
RX-
10/100BaseT Ethernet
5
TX0
Serial port 0
12
RX+
6
RX0
13
TX+
07
DGND
14
TX-
CAUTION: On some interfaces, e.g., 1500-Sony / Tamron board, power to the 1500-OEM board is provided through
J4 on pins 48 and 50. In these cases do not apply power to J3 pins 8 and 9. Powering the OEM through the J3 power
pins and through the J4 power pins can damage the OEM.
ICD-1500-OEM
© SightLine Applications, Inc. 5
5.1.1 Analog Video Input
Supports the following analog video formats:
•NTSC-J, M
•PAL-B, D, G, H, I
•PAL-M
•Converts luminance and chrominance channels to 8-bit ITU−R BT.656 interface with embedded
sync output and extended coding range of values.
•Y, U, and V range from 1 to 254.
IMPORTANT: See Appendix C for more information on minimizing noise on analog input.
5.1.2 Analog Video Out
Composite TV out.
Supports composite DC coupled full-scale voltage output: minimum 1.2 Vpp with a 75-Ω parallel
termination. The following video standards are supported:
•NTSC-J, M
•PAL-B, D, G, H, I
•PAL-M
A 75Ωparallel resistor (to ground) is required on the TV-out for proper signal quality. Video traces
should be routed with 75Ω characteristic impedance.
5.1.3 Ethernet
On connector J3, pin 11 through pin 14 represent the Ethernet connection. Currently only
10/100BASE-T has been implemented.
TX+/ TX- is sending info from Sightline product., RX+/ RX- is receiving.
The 1500-OEM uses the embedded Ethernet approach. This consists of 0.033uF capacitors placed in
series on the Ethernet lines (AC coupled) onboard. There are no Ethernet magnetics on the 1500-OEM.
If the distance is less than a few meters and there is a common ground, there should not be any issues
with Ethernet connectivity (even in EMI testing).
IMPORTANT: If the Ethernet needs to be changed to use external magnetics, the OEM board should
be modified by changing the board capacitors (and possibly other passives) to zero Ω jumpers.
Contact Support for modification assistance.
ICD-1500-OEM
© SightLine Applications, Inc. 6
5.2 Connector J4
Digital Camera, Serial Ports, GPIO, Alternate Input Power.
This connector is designed to allow the 1500-OEM to mate with the FLIR Tau 640 or other SightLine
system interface boards. This is a generic camera input supporting up to 12-bits video data. The 1500-
SOM can accept many types of digital video input. For optimal processing performance, the height and
width of the image should be a multiple of 16.
CAUTION: On some interfaces, e.g., 1500-Sony / Tamron board, power to the 1500-OEM board is provided through
J4 on pins 48 and 50. In these cases do not apply power to J3 pins 8 and 9. Powering the OEM through the J3 power
pins and through the J4 power pins can damage the OEM.
Table 4: 1500-OEM J4 Pinout
Power
Analog Video
Digital Video
12C
Serial
GPIO
Ground
Pin
Description
Signal Level
Pin
Description
Signal Level
1
RX2
VIOSEL
2
TX2
VIOSEL
3
CAMD14 / CAMXCLKA
VIOSEL
4
CAMD15 / CAMXCLKB
VIOSEL
5
DGND
6
DGND
7
I2C SCL
VIOSEL
8
I2C SDA
VIOSEL
9
GPIO175
VIOSEL
10
CAMFLD
VIOSEL
11
CAMVS
VIOSEL
12
CAMHS
VIOSEL
13
GPIO174
VIOSEL
14
GPIO173
VIOSEL
15
RX1
VIOSEL
16
TX1
VIOSEL
17
DGND
18
TAUDET
19
GPIO178
3.3V
20
CAMD13
VIOSEL
21
EXTSYNC (Future Use)
VIOSEL
22
CAMD12
VIOSEL
23
CAMD11
VIOSEL
24
CAMD10
VIOSEL
25
CAMD09
VIOSEL
26
CAMD08
VIOSEL
27
DGND
28
DGND
29
CAMD07
VIOSEL
30
CAMD06
VIOSEL
31
CAMD05
VIOSEL
32
CAMD04
VIOSEL
33
CAMD03
VIOSEL
34
CAMD02
VIOSEL
35
CAMD01
VIOSEL
36
CAMD00
VIOSEL
37
DGND
38
DGND
39
CAMPCLK
VIOSEL
40
GPIO172
VIOSEL
41
DGND
42
DGND
43
Analog Video In 1
44
Analog Ground
45
DGND
46
VIOSEL
See VIOSEL -
Setting IO
Signal Levels
47
Power Return
48
Alternate Power In/Out
5V
49
Power Return
50
Alternate Power In/Out
5V
ICD-1500-OEM
© SightLine Applications, Inc. 7
5.2.1 Internal Pullup on J4 Pins
The pullup drive strength is equal to: minimum = 50μA, typical = 100 μA, maximum = 250 μA (unless
otherwise specified).
See Appendix D - Level Translators for more information.
5.3 Connector J5: FPGA JTAG, USB, GPIO
Connector J5 is rarely used in system implementations and is typically not connected to.
The USB_VBUS connection can supply a maximum of 100mA. If using as a power source for
connected devices that require more than 100mA, they will need an external power source.
Use of JTAG pins to program the input FPGA is not needed for the Rev E. See EAN-FPGA-Firmware-
Update-1500-OEM.
IMPORTANT: The USB communications interface is not currently supported. This content may
change as more information becomes available. For any additional questions contact Support.
Table 5: 1500-OEM (Rev E) J5 Pinout
Pin
Description
Pin
Description
1
USB_VBUS
7
FPGA JTAG TMS
2
USB-
8
FPGA JTAG TDI
3
USB+
9
GPIO145
4
USBID
10
FPGA JTAG TRST
5
DGND
11
FPGA JTAG TDO
6
FPGA JTAG TCK
12
GPIO144
5.4 Socket S1: MicroSD
Push the microSD into place. To eject push it again. The socket is rated up to 10,000 mating cycles and
has 3.3 mm card eject length.
Recommended MicroSD card types and previously tested models are discussed in the EAN-File-
Recording document.
On Rev E boards use an adhesive to hold the microSD card in place to prevent ejection during hard
aircraft landings or other shocks to the board.
Figure 4: Example - 1500-OEM (Rev E) Adhesive Placement on MicroSD Card
MicroSD Card
RTV Silicone
Adhesive (Locktite
51387 or similar)
ICD-1500-OEM
© SightLine Applications, Inc. 8
6Additional I/O
6.1 OEM Power
OEM power can be applied to either J3 or J4.
Table 6: 1500-OEM Power Supply Pins
Connector/Pin
Name
Range
Notes
J3 Pin 8 and 9
P5V
4.5 - 5.5V
Primary (typical) power input pins
J4 Pin 48 and 50
P5V
4.5 - 5.5V
Alternate power input if powering via the digital
interface connector (ex: Sony Input Adapter or
customer interface)
IMPORTANT: Do not apply power to both J3 and J4 pins at the same time. On some interfaces,
e.g., 1500-Sony /Tamron board, power to the 1500-OEM board is provided through J4. In these
cases, do not apply power to J3. Powering the OEM through the J3 power pins and through the J4
power pins can damage the OEM.
6.2 Camera Power Considerations
Integrators should understand how camera power is provided and how it impacts use of the 1500-
OEM. There are three camera power categories for the 1500-OEM camera interfaces:
•Cameras powered from the OEM.
•Camera configurations that provide power to the OEM.
•Camera power independent of SightLine circuits.
Table 7: Cameras Powered from 1500-OEM
Camera
Camera Interface Adapter
Notes / Warnings
FLIR Tau
SLA-1500-FFC
SLA-1500-FPC
VIN directly to camera. Be aware when setting OEM input voltage.
Current provided to camera is limited only by connector pin current
ratings.
DRS Tamarisk
HDMI
SLA-1500-HDMI
Airborne
Innovations
SLA-1500-FPC
CAUTION: The camera input voltage for this camera is less than
max VIN to OEM. Ensure the OEM VIN is set correctly to avoid
camera damage.
FLIR Boson 320
SLA-1500-FPC
Limited to (810mA) of camera power. This meets camera
specifications for the Boson 320 camera, but slightly below max
power required for the Boson 640 camera. Even though tests have
shown that OEM power to the Boson 640 is adequate, SightLine
recommends using external power for the camera (see Table 9).
Table 8: Camera Configurations Providing Power to 1500-OEM
Camera
Camera Interface Adapter
Notes
Hitachi Block
SLA-1500-HIT
Camera adapter board has 5V regulator to power
OEM. External power applied to adapter should
meet camera voltage requirements
Sony, Tamron, Intertest and
other Sony type block cameras.
SLA-1500-SONY
IMPORTANT: Do not apply power to J3 when using these configurations. Power to the OEM is provided on
J4.
ICD-1500-OEM
© SightLine Applications, Inc. 9
Table 9: Cameras Powered Independently
Camera
Camera Interface Adapter
Notes
Camera Link
SLA-1500-CL
SightLine Adapter Boards do not provide options for providing
power to the camera. Follow guidance from camera
manufacturers
Analog
OEM input on J3 / J4
FLIR Boson 640
FPC-Boson Ext Option
SLA-1500-FPC
The FPC-Boson-EXT board provides the ability for customers to
provide external power to the camera. The 1500 OEM can only
provide (810mA) of power through the interface, which is
below the max input current specification of the Boson 640
camera.
Other
NA
Other cameras that provide power support through
independent input connectors unassociated with SightLine
connections
IMPORTANT: The supply voltage level must be compatible with camera adapter board and
connected cameras. For example, the 3000-Sony camera adapter board passes supply voltage
directly to the attached camera. A Sony EH series camera can only support 6V - 12V. This would
limit the supply voltage to the 4000-OEM to this range.
IMPORTANT: There are multiple rails available on the connectors to power a camera adapter
board or accessories. Do not exceed 0.8A on the 3.3V rail. Do not exceed 0.7A on the 1.8V rail.
6.3 VIOSEL - Setting IO Signal Levels
Pin 46 VIOSEL powers and sets the voltage level of the signals with names starting with CAM, as well as
the GPIOs, RX1/TX1 and RX2/TX2. VIOSEL can be set to 1.8V, 2.5V, or 3.3V. All signals besides the CAM
signals use the bidirectional level converter TXB0108, which has a weak steady state drive strength.
IMPORTANT: Do not exceed 3.3V on VIOSEL.
6.4 LEDS
Table 10: 1500-OEM LED Status
Label
Description
LED Color
D1
Power Indicator
Green
D2
GPIO179
Green
D3
Network Status
Green
6.5 Serial Ports
To use serial port 1 and serial port 2, external power must be applied to VIOSEL to set the IO voltage
level.
Serial port 0 operates at 3.3V. If an application requires a different IO voltage for serial port 0, it is
important to use a level shifter that is not a bidirectional, i.e., an automatic direction sensing type of
level shifter.
ICD-1500-OEM
© SightLine Applications, Inc. 10
Table 11: Serial Port Summary
Ports
Serial 0
Serial 1
Serial 2
Notes
Linux Reference
/dev/ttyO0
/dev/ttyO1
/dev/ttyO2
Useful for command line testing, or
custom ARM applications.
SOM Port Number
A
C
B
The Torpedo SOM hardware uses a
different nomenclature in the
documentation. The SOM serial port (A,
B, C) maps to the SLA serial port (0, 2, 1).
Used for:
Command and Control
and debug.
Recommend
maintaining access for
troubleshooting.
Command and Control
and general customer
use/passthrough.
Primarily camera control
passthrough, can be used
for general customer
use/passthrough or
command and control.
Table 12: Serial Ports - 1500-OEM
Serial Ports
Serial 0
Serial 1
Serial 2
Notes
Connector, Pin
Connector, Pin
Connector, Pin
1500-OEM
Rx
Tx
Level
Rx
Tx
Level
Rx
Tx
Level
Voltage levels of serial 1 and serial 2 are
set by VIOSEL input J4,46.
J3,6
J3,5
3.3V
J4,15
J4,16
Note
J4,1
J4,2
Note
IMPORTANT: It is not necessary to apply power to VIOSEL when using a SightLine accessory board
other than 1500-AB development board that implements serial 1 and/or serial 2. These boards
have a DC-to-DC converter that provides 3.3V to VIOSEL. Powering VIOSEL through both the
internal regulator and an external source can have unpredictable results and potentially damage
the OEM and accessory boards.
Serial port mapping when using system and camera interface boards are defined in the ICD-1500-
Adapter-Boards document.
6.6 Test Points
Table 13: 1500-OEM Test Points
Label
Description
Label
Description
TP1
Ground
TP3
FPGA Pin B9
TP2
3.3V
TP4
FPGA Pin C8
6.7 GPIO
See the ICD-1500-Adapter-Boards for GPIO mapping when using system and camera interface boards.
Table 14: 1500-OEM GPIO
Hardware Reference
Pin
Level
Pin
Level
Pin
Level
Pin
Level
Pin
Level
Pin
Level
Pin
Level
(3.3V)
Notes
OEM Schematic
Reference
GPIO144
GPIO145
GPIO172
GPIO173
GPIO174
GPIO175
GPIO178
SW Signal Name
/sys/class/gpio
/gpio144
/sys/class/gpio
/gpio145
/sys/class/gpio/
gpio172
/sys/class/gpio
/ gpio173
/sys/class/gpio/
gpio174
/sys/class/gpio/
gpio175
/sys/class/gpio/
gpio178
1500-OEM
J5,12
1.8V
J5,9
1.8V
J4,40
Note
J4,14
Note
J4,13
Note
J4,9
Note
J4,19
3.3V
Voltage levels of
four of the J4 GPIO
signals are set by
VIOSEL input J4,46.
Default State
Input
Input
Output
Input
Input
Input
Input
Default Value
Low
Low
Low
High
High
(May toggle
on startup)
High
Low
Default value may
change based on
SW release.
Contact SightLine
if this is important.
ICD-1500-OEM
© SightLine Applications, Inc. 11
Table 15: 1500-OEM GPIO Signals Not Accessible
Schematic Signal Name
Software Signal Name
Reference Voltage
Description/Location
GPIO129
NA
1.8V
LAN9221 Pin 43
GPIO171
/sys/class/gpio/gpio171
1.8V
FPGA A9
GPIO179
/sys/class/led/led2
3.3V
LED D2 (green) - Used to indicate
firmware update progress during an
upgrade through the microSD card.
7Digital Video Input Description
7.1 Overview
The 1500-OEM has a single 16-bit digital video input port - Cam 2 (Digital). The signals are parallel
digital video only. (Also referred to as CMOS video.)
Signal locations are detailed in Table 4: 1500-OEM J4 Pinout.
Two types of synchronization are supported. Both require a pixel clock along with the data stream:
•Discrete Video Sync Signals: Separate signals for vertical sync and horizontal sync
•Embedded Sync: Synchronization codes present in the data stream are decoded to derive vertical
and horizontal sync and field (interlaced) information. This requires using FPGA V7 for BT.1120 (HD)
embedded sync. BT.656 embedded sync (SD) is supported natively in the 1500 DSP.
•Details on signals and pin locations are in section Video Formats.
7.2 Adapter boards
For acquiring video other than parallel digital video, a set of adapter boards are available to convert
popular video signals to parallel digital video for input to the Video Port. Details are available in ICD-
1500-Adapter-Boards.
Input boards:
•Sony serial digital interface (Sony FCB cameras and compatible Tamron cameras)
•HDMI camera interface
•Camera Link camera interface
•Hitachi camera interface
•Additionally, parallel video can be acquired using an adapter board that accepts an FFC and FPC
cable types. Mating adapter boards are available that attach to specific camera types (Boson,
Airborne, etc.)
SightLine adapter boards are often used by customers for system development work. The adapter
board design is then integrated into a custom IO board that mates with the 1500-OEM.
7.3 Signal Levels
Unless otherwise specified, all video signal levels are at the voltage provided by the VIOSEL reference
level input to the 1500-OEM. See the VIOSEL - Setting IO Signal Levels section.
ICD-1500-OEM
© SightLine Applications, Inc. 12
7.4 Synchronization Signals
The following synchronization signals are used. See Table 4: 1500-OEM J4 Pinout.
•CAMVS vertical sync: A rising edge (default) indicates the start of a new frame.
•CAMHS horizontal sync: A rising edge (default) indicates the start of a new line.
•CAMFLD: This is the field signal for interlaced video. The 1500-OEM does not currently support
interlaced acquisition using the field signal.
•CAMPCLK pixel clock: Pixel data is sampled on the rising edge. Maximum input rate is 74.25 MHz.
Pixel clock edge is not currently configurable through acquisition parameters.
IMPORTANT: For 16/14-bit digital parallel video inputs, in most cases the customer is required to
externally double the pixel clock that is provided to the 1500-OEM. For 720P60 or 1080P30
cameras in this case, the input pixel clock to the 1500-OEM CAMPCLK will be externally doubled
to 148.5 MHz. This does not apply to camera data provided through Sightline adapter boards
since these boards implement this pixel clock doubling where necessary. Contact Support for
details.
7.5 Video Formats
Video synchronization can be accomplished using either Discrete Sync signals or Embedded Sync data.
Generally Discrete Signals are preferred as they are more commonly supported in the 1500-OEM.
Discrete Video Sync Signals in signal locations
•CAMVS (Vertical sync, start of frame)
•CAMHS (Horizontal sync, start of line)
•CAMFLD (field) – not generally used.
Embedded Sync In this case all synchronization information is in the embedded sync codes - only the
pixel clock and the data stream are used.
•BT.1120 (HD, 720/1080P 30 FPS) Requires special FPGA version 7, only process 720P
•BT.656. (SD – 525/625 lines)
Cam 2 (Digital) (J4):
•16-bit YCbCr (up to1920 x 1080 @ 30Hz) – 1500-OEM only processes center 720P
•16-bit grayscale (up to 640x512 @ 30Hz)
•Embedded sync or discrete sync modes
ICD-1500-OEM
© SightLine Applications, Inc. 13
7.6 Color Camera Data Input Signal Locations
All signal locations refer to the Table 4: 1500-OEM J4 Pinout.
16-bit YCbCr 4:2:2
8-bit luminance Y acquired in signal locations CAMD08->CAMD15
8-bit chrominance CbCr in signal locations CAMD00->CAMD07
8-bit BT.656
8-bits BT.656: Data on signal pins CAMD00->CAMD07
7.7 Grayscale Camera Data
Up to 16-bit
8-bit data in signal locations CAMD00->CAMD07 (CAMD08->CAMD15 should be tied low)
14-bit data in signal locations CAMD00->CAMD13 (CAMD14->CAMD15 should be tied low)
16-bit data in signal locations CAMD00->CAMD15
Discrete sync signals in signal locations CAMVS, CAMHS
7.8 Active Video Area and Blanking
Digital video signals contain blanking
lines at the top of each frame known
as vertical blanking. Blank pixels at
the start of each line are known as
horizontal blanking.
The active picture region is where
the pixel data from the sensor is
displayed (Figure 5). This example
shows there are 45 blanking lines at
the start of each frame, and 280
blanking pixels at the start of each
row.
Every camera will have different
vertical and horizontal blanking
values. The same camera, when
configured for different resolutions,
can have different vertical and
horizontal blanking values. Refer to
the camera specific technical
documentation for the correct
settings.
Figure 5: Vertical and Horizontal Blanking
ICD-1500-OEM
© SightLine Applications, Inc. 14
7.8.1 Removing Blanking Lines and Pixels
Blanking lines and pixels should be removed when the video is acquired by the 1500-OEM by manually
enter the Vertical and Horizontal Front Porch settings.
Vertical and Horizontal Front Porch Example (manual blanking entry)
Set the Vertical Front Porch (vertical lines of blanking) to 45. Set Horizontal Front Porch (horizontal
pixels of blanking) to 280.
Figure 6: Data Valid Not Supported
To determine the blanking of a camera when using a custom camera, or a technical reference manual
that shows the vertical and horizontal blanking is not available, use the following procedure:
1. Set Vertical Front Porch and Horizontal Front Porch to 0.
2. Turn off stabilization (Panel Plus main menu » Configure » Stabilization » Disable All Processing).
3. Disable AutoChop for the camera (Panel Plus main menu » Configure » Margin Chopping).
4. Save the parameters to the board, and then reboot the system. The network video should be
viewable in Panel Plus.
5. Point the camera at a bright white scene. Rows at the top or columns at the left that remain gray
are blanking areas.
6. Performa an SD card snapshot with Capture as the source. See EAN-File Recording.
7. Download the snapshot and open it in an image viewer application. Zoom in and count the number
of blank lines at the top (vertical blanking) and blank columns at the left (horizontal blanking).
8. If an SD Card snapshot cannot be taken, change the horizontal and vertical blanking values. Save the
parameters to the board, and then restart the board. View the video in Panel Plus and repeat until
all the blanking lines have been removed.
8Questions and Additional Support
For questions and additional support, please contact Support. Additional support documentation and
Engineering Application Notes (EANs) can be found on the Documentation page of the SightLine
Applications website.
ICD-1500-OEM
© SightLine Applications, Inc. 15
Appendix A - Missing Driver Chip
IMPORTANT: Pre-July 2014 builds without U7 chip installed.
Some pre-production REV C (green PCB) boards shipped prior to July 2014 did not have the U7 driver
chip installed. These boards will not have I2C capability on J4, which prevents HDMI functionality.
Figure A1: U7 Driver Chip Location
Appendix B - Anti-Alias Filter
The 1500-OEM does not have an anti-aliasing filter, however if aliasing noise is observed, an anti-
aliasing filter has been shown to be beneficial in improving video quality. Figure B2 shows the
recommended location of anti-aliasing filter input circuit.
Figure B1: Anti-Aliasing Filter Input Circuit
Driver chip
installed on
board
Driver chip not
installed on board
(
pre-July 2014
builds)
Recommended Anti-
Aliasing Filter for Analog
Inputs
ICD-1500-OEM
© SightLine Applications, Inc. 16
Appendix C - Analog Video Noise Shielding
The analog input connection to the 1500-OEM should use coax or other shielded cable.
Keeping the analog and AGND wires close together and away from noisy sources (cables carrying
digital video) and minimizing cable distance and ground loops can help.
Twisting the analog video VIDEOIN0 and analog ground AGND wires on the input to the 1500-OEM can
be effective. In the example setup shown below, shielding was done by twisting the two wires in the
center without detaching the pins from the connectors. Also try to keep the two wires away from
noisy sources, i.e., the white flat cable carrying digital video.
Using the analog output of the 1500-OEM connected to an analog monitor will show high frequency
noise better than on H.264 compressed network video. This is a more effective setup for testing
shielding effects since the change in quality is more apparent.
For color noise issues forcing the False Color setting to White Hot using Panel Plus can help diagnose
issues by removing the color component of the output video.
IMPORTANT: The analog output wires (TVOUT1/AGND) from the 1500-OEM can also be twisted in
a similar way to reduce analog output video noise (not shown).
To help identify issues more quickly send setup photos to Support.
Figure C1: Analog Video Noise Shielding Example
Analog and
AGND wires
twisted
ICD-1500-OEM
© SightLine Applications, Inc. 17
Appendix D - Level Translators
D1 Overview
This section discusses issues that can occur in daisy-chain applications where a bidirectional level
translator is on a line that already has a separate bidirectional level translator on the OEM board.
Using back-to-back bidirectional translators can lead to erratic behavior and logic levels within the
system causing unintended voltages that exceed design specifications.
The example in this in this section is using a TXB0104 level translator feeding a SparkFun BOB-12009
level translator. These results can also be typical in other sets of bidirectional level translator
applications.
1500-OEM use case scenario:
VIOSEL is tied to a voltage (3.3V) for camera communications, but a different voltage is needed (5V) on
lines from J4 (Serial 1) to communicate with a separate piece of equipment such as a lens.
Customers wish to use Serial Port 0 from J3 at a voltage level other than 3.3V.
Recommended associated documents:
Circuit diagram for the SparkFun logic level bidirectional break out board.
Texas Instrument TXB0104 data sheet.
IMPORTANT: If you are having any issues where a level translator is needed, please contact
Support before performing any modifications to the video processing boards.
D2 Recommended Level Translators
SightLine recommends customers use low-impedance output, unidirectional buffers for their
applications. Level translators that use a direction pin to set the direction are also suitable, provided
they have a low output impedance and high input impedance.
There are applications where bidirectional level translators can still be used, but it is important to
confirm that the signal being translated is not being translated by another bidirectional level translator
on the OEM board or an adapter board. To be safe use unidirectional translators wherever possible.
D3 Level Translation Overview
Bidirectional translators are a complicated component. There are many ways that they can be
implemented. They rely on one basic principle; they can detect which direction a signal is coming from,
and then switch their directions dynamically.
A typical unidirectional translator has a low-impedance output capable of driving LEDs or other
significant loads. However, a bidirectional translator with a low-impedance output cannot determine
when a load has switched from an input to an output and is trying to drive it, instead of it driving the
load.
ICD-1500-OEM
© SightLine Applications, Inc. 18
If a bidirectional translator has a low impedance output, it will result in two outputs connected directly
together trying to drive the wire in different directions. This could damage one of the driver stages in
the process.
To detect if a signal that was once being driven by the translator has switched directions and intends to
drive the translator in the other direction, the bidirectional translator should have a significant output
impedance of at least 1kΩ.
In the case of the TXB0108/4 translator example, the output impedance is 4kΩ. In the case of the BOB-
12009, in some states it is 10kΩ.
D4 Example: Driving a BOB-12009 with TXB0104
To analyze problems that can arise in this situation, it is important to look at how the BOB-12009
functions. A schematic of the basic level translator block on the BOB-12009 is shown in Figure D1.
Figure D1: BOB-12009 Basic Level Translator Block
Assume that the LV_IO is driving HV_IO. When LV_IO is high, the mosfet is off, and HV_IO is pulled high
by the 10k resistor.
When LV_IO is low, the mosfet is turned on and HV_IO is pulled low through the drain of the mosfet.
In the alternative case, HV_IO is driving LV_IO. When HV_IO is high and LV_IO is low, the mosfet will be
turned on. LV_IO will also be pulled high until it turns off. At this point the 10k resistor will pull LV_IO
up to where it needs to be.
When HV_IO is low, the body diode of the mosfet will pull LV_IO down until the mosfet starts
conducting and then pulls LV_IO further down.
It is important to note that there are some situations where the outputs are being set by a 10kΩ
resistor instead of a low-impedance source.
Other manuals for 1500-OEM
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