Hardware Manual
 Reduced to the max
 Smart
 Open-Source
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2
Copyright reminder
2008 by Supercomputing Systems AG, Switzerland.
This work is licensed under a Creative Commons Attribution-Share Alike 3.0 license.
Versions
Version
1.0
1.2
Date
13.11.2008
01.10.2009
Author
DE/LL
BM
1.2.1
06.10.2009
BM
1.2.2
1.2.3
1.2.4
25.11.2009
24.03.2010
28.06.2011
BM
LL
SZ
28. Juni 2012
Comments
First Release
Added monochrome option
Fixed I/O resistor values in table 3.6.1.
Added comment about which LED is softwarecontrollable (chapter 3.2)
Added position and dimension of holes of lense holder
Updated dimension drawing
Updated dimension drawing
Visa
3
Contents
1
leanXcam ..................................................................................................................................6
1.1
Introduction ................................................................................................................................6
1.2
Purpose of this document ..........................................................................................................6
2
Hardware Overview ..................................................................................................................8
2.1
Block Diagram ............................................................................................................................8
2.2
On-Board Devices ......................................................................................................................9
2.3
2.3.1
2.3.2
Interfaces ...................................................................................................................................9
Digital Inputs, optically isolated ................................................................................................10
Digital Outputs, optically isolated .............................................................................................11
3
Hardware Components ..........................................................................................................12
3.1
Main Components ....................................................................................................................12
3.2
LED Indicators ..........................................................................................................................13
3.3
Quartz and Clock Oscillators ...................................................................................................14
3.4
Supply Measurement Points ....................................................................................................15
3.5
3.5.1
On-Board Headers and Jumpers .............................................................................................16
Pinout of the On-Board Headers ..............................................................................................17
3.6
3.6.1
Interface Connectors ................................................................................................................19
Pinout of the I/O Connector .....................................................................................................20
4
Mechanical Dimension ..........................................................................................................21
4.1
Mechanical Dimensions of the PCB .........................................................................................21
4.2
Mechanical Dimensions of the enclosure ................................................................................22
5
Examples ................................................................................................................................23
5.1
External Flash Circuit Example ................................................................................................23
5.2
Simple Output Example ...........................................................................................................24
5.3
Isolated Output Example ..........................................................................................................25
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1
leanXcam
1.1
Introduction
leanXcam is an intelligent colour camera with a rich set of features that provides an impressive
performance, in spite of its low production cost. The smart combination of a well-established sensor
chip, a fast digital signal processor, a tailored Linux-based operation system and the image processing
framework from SCS-Vision makes the leanXcam an incomparable achievement in the field of Vision.
Communication is ensured by Ethernet connection and digital I/Os.
1.2
Purpose of this document
This document gives an overview of the leanXcam HW and provides information about the used
devices, interfaces and some examples. This document should be used by readers who are interested
in the physical blocks contained in the leanXcam or by readers who want to use more debug features
like RS232 and JTAG, when designing with the leanXcam.
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2
Hardware Overview
This section gives an overview of the main components/devices and interfaces available on the
leanXcam board.
2.1
Block Diagram
In Figure 1 the block diagram of the leanXcam HW is shown.
Power Connector
RJ45 Connector
I/O Connector
Legend:
Main Interfaces
Power Supply
5V -> 3.3V
Digital I/O
2 opt.inputs
2 opt. outputs
Eth_Clock Ethernet
PHY
Systemclock
25MHz
Sensor Clock
26.6MHz
EMAC
GPIO
Clock_Out
sync.
Bus
Clock_In
CMOS Image
Sensor
User accessible through
socket connectors or
jumpers
SDRAM
64 MByte
DSP
PPI
BlackFin ADSP-BF537
Micron MT9V032
JTAG
I2C
JTAG
Connector
Real Time
Clock
4 MByte
FLASH
SPI
I2C
4 MByte
FLASH
Reset
UART0
Reset
RS232
Vcc3.3
3-pin header
3-pin header
optional
microSD slot
Figure 1: Block Diagram
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2.2
On-Board Devices
The leanXcam board offers the following devices:
-
500 MHz Digital Signal Processor Blackfin ADSP-BF537
-
CMOS Sensor Micron MT9V032C12STC (color) or MT9V032C12STM (monochrome), WideVGA 752H x 480V, 10Bit
-
64 MByte RAM Memory
-
4 MByte Flash for Boot program
-
4 MB Flash Memory for Algorithm Software
-
microSD Card holder for optional Flash Memory expansion
-
Voltage Regulator (LDO) for clean and stable 3.3V Supply Voltage
-
Lens holder for standard M12x0.5 mount Lenses
2.3
Interfaces
The leanXcam Board supports the following interfaces:
-
Fast-Ethernet 100Mb (10/100Mb) (RJ-45 Connector)
-
RS232C Interface for first-time configuration during manufacturing (on-board header)
-
I C Interface to connect additional serial devices (on-board header)
-
JTAG for Debugging DSP (on-board 14-pin 2-row header)
-
5V Power Input (6.5mm round connector Lumberg 1613 14)
-
2 optical isolated inputs and 2 optical isolated outputs (isolation can be jumpered, 1 input can
be used as external exposure, 1 output can be used for external flash triggering) with a 6-pin
Phoenix direct-PCB connector. Also see Figure 2 and Figure 3 for details
-
Power-ON LED (on-board)
-
Link speed und Link activity LED (in RJ45 connector, external view)
-
Bi-color status LED (external view)
2
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2.3.1
Digital Inputs, optically isolated
VIN
external Supply
1
Fairchild
MOCD207R2M
Input 1
5
68R
to DSP
I/O GND
4
Jumper J602
Fairchild
MOCD207R2M
Input 2
6
68R
to DSP
Figure 2: Digital Inputs
Jumper 602 can be used to connect the Ground to the I/O GND, if isolation is not required.
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2.3.2
Digital Outputs, optically isolated
VIN
1
external Supply
2
Output 1
4
I/O GND
3
Output 2
Fairchild
MOCD207R2M
from DSP
33R
Fairchild
MOCD207R2M
from DSP
33R
Jumper J602
Figure 3: Digital Outputs
Jumper 602 can be used to connect the Ground to the I/O GND, if isolation is not required.
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3
Hardware Components
3.1
Main Components
The main components of the leanXcam are as follows:
Data Flash
Program Flash
SDRAM
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CMOS Sensor
Blackfin DSP
FET (VR) for DSP
Optocoupler
RS232 Driver
Ethernet Physical
I/O Connector
LDO
Power Connector
Ethernet Connector
12
3.2
LED Indicators
The leanXcam has two LED indicators, one power LED and one bi-color status LED:
Power LED (3.3V)
Status LED (red / green), software-controllable
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3.3
Quartz and Clock Oscillators
The leanXcam has two clock oscillators and one Quartz:
26.66 MHz Oscillator for CMOS sensor (arrow points to clock pin)
32.768 kHz Quartz for RTC
25 MHz Main clock oscillator for DSP and Ethernet (arrow points to clock pin)
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3.4
Supply Measurement Points
There are on-board voltages which can be measured at the following points:
3.3 Volt
VIN (5 Volt)
Ground
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3.5
On-Board Headers and Jumpers
The leanXcam has the following headers and jumpers:
Boot Jumper
Factory Reset Jumper RS232C Interface Header
JTAG Connector (not populated)
I/O GND to GND Jumper
2
I C Interface Header
Note: Arrows point to Pin 1 of the headers
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3.5.1
Pinout of the On-Board Headers
Boot Jumper J202
Selection
Description
No Jumper
DSP boots from on-board Flash chip (default)
Jumper inserted
DSP boots from RS232C interface
I/O GND to GND Jumper J602
Selection
Description
No Jumper
inputs and outputs of connector J601 are isolated
Jumper inserted
I/O GND of J601 is connected to System GND (inputs and outputs are
NOT isolated)
Factory Reset Jumper J302
Selection
Description
No Jumper
normal operation (default)
Jumper inserted
Resets the factory default IP address 192.168.1.1 on power-up,
remove this jumper when the leanXcam is accessible afterwards
RS232C Header J702
Pin Number
I/O
Description
1
Input
UART Receive input pin, RS232 level (input to leanXcam)
2
Output
UART Transmit output pin, RS232 level (output from leanXcam)
3
Power
System Ground
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2
I C Header J401
Pin Number
I/O
Description
1
Power
3.3V Supply (without fuse !)
2
I/O
SCL Signal (I C Clock)
3
I/O
SDA Signal (I C Data)
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2
18
3.6
Interface Connectors
The external connectors of the leanXcam are as follows:
5V Power Input Connector (+ at Center) I/O Connector
optional microSD Card connector (backside)
Pin 1
Pin 6
Ethernet Connector (RJ45)
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3.6.1
Pinout of the I/O Connector
Connector J601 (Phoenix Contact No: ZEC1,0/6-ST-3,5C1R1)
Pin Number
I/O
Description
1
Power
VIN 5 Volt (connected to the power connector without fuse)
default: leave unconnected or use as power for external devices
(max. 100mA)
2
Output
Output 1 (connected through a 33R current-limit-resistor to the
collector of the opto-coupler output transistor)
3
Output
Output 2 (connected through a 33R current-limit-resistor to the
collector of the opto-coupler output transistor)
This output can be used as a trigger for an external flash
4
Power
I/O Ground (can be connected to System Ground with the Jumper
J602
5
Input
Input 1 (connected through a 68R current-limit-resistor to the anode of
the opto-coupler LED)
6
Input
Input 2 (connected through a 68R current-limit-resistor to the anode of
the opto-coupler LED)
This input can be used as an external exposure trigger
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4
Mechanical Dimension
4.1
Mechanical Dimensions of the PCB
Figure 4: PCB dimensions
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4.2
Mechanical Dimensions of the enclosure
Figure 5: enclosure dimensions
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5
Examples
In this section some examples of typical digital IO Interface connections are shown. Connect the
external devices and logic like shown in these examples, if this is appropriate for the current design
and use.
5.1
External Flash Circuit Example
for ex. 12V
NPN Transistor
LED Array
1k
4k7
Flash Trigger
Signal (3.3V)
Figure 6:LED Flash Example
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5.2
Simple Output Example
VIN
1
Fairchild
MOCD207R2M
from DSP
33R
2
220R
4
Fairchild
MOCD207R2M
from DSP
33R
3
220R
Jumper J602
Figure 7: Non-isolated Output
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5.3
Isolated Output Example
12 Volt
1k
VIN
1
Fairchild
MOCD207R2M
from DSP
33R
2
1k
4
Fairchild
MOCD207R2M
from DSP
33R
3
Jumper J602
Figure 8: Isolated output example
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