Difference between revisions of "10369"

Revision as of 11:39, 16 September 2008

10369

10369 board, top view

10369 board, bottom view

10369 Circuit Diagram, Parts List, PCB layout     10369 Gerber files

Features

10369 interface board is an extension board for the Elphel 353/363 series cameras.

• It provides multiple interfaces and peripherals to the camera:
  • SATA port for external disk drives
  • Compact Flash (in "True IDE" mode) and IDE HDD ports (with adapter/riser boards: 103691, 103692)
  • RS-232 port
  • Opto-isolated I/O port for synchronizing the camera or synchronizing together multiple cameras (modular RJ14 external connector)
  • Opto-isolated I/O port for synchronizing multiple camera modules in the same enclosure (flex cable connectors)
  • Digital thermometer with internal ("system") and external thermal sensor (emitter-base junction of PNP or NPN transistor)
  • Fan driver, controlled by the digital thermometer with programmable on/off temperature
  • Clock/calendar with the super-capacitor backup power
  • EEPROM for the board identification and configuration

Adapters

10369 board is used with several adapters:

• 103691 - adapter/riser to connect one or two Compact Flash cards
• 103692 - adapter for the ZIF-type (flex cable connector) 1.8" HDD
• 103693 - USB type A (host) connector adapter mounted on the back panel of the Elphel Model 353 camera.
• RJ45/DB9F_Modular_Adapter - DB9F to RJ45/RJ25 modular adapter

On-board I2C devices

8-bit port/EEPROM

This combined port/EEPROM chip for the board identification and it also controls some IDE-related parameters of the board.

• Manufacturer - NXP Semiconductors
• Datasheet - PCA9500_3.pdf
• I2C slave addresses:
  • 8-bit port: 0x40
  • EEPROM: 0xa0

8-bit port

The 8-bit port is bidirectional with weak pull up (strong pull up during write pulse), so to work as input bit has to be programmed with "1". There is a single "register" that corresponds to I/O bits that does not have any address, so a raw mode is used during I2C read/write. Default value after power up is 0xff (all bits "1").

Note: rebooting the camera does not reset the port - values are preserved.

Example - reading status of CF cards installed):

http://192.168.0.73/i2c.php?bus=1&raw=0x2000

result (CF0 present, CF1 - not installed, outputs - default):

<?xml version="1.0"?>
<i2c>
 <width>8</width>
 <bus>1</bus>
 <slave>0x40</slave>
 <data>254</data>
 <rdata>254</rdata>
 <hex_data>0xfe</hex_data>
</i2c>

Example - setting SATA to be IDE slave (needed if bottom CF card is installed):

http://192.168.0.73/i2c.php?bus=1&raw=0x2000&data=0xdf

then reboot (not power cycle) the camera - the SATA disk will be IDE slave, CF0 - IDE master

Identification EEPROM

Example - reading EEPROM data (it stores up to 256 bytes, containing text xml data):

http://192.168.0.9/i2c.php?cmd=fromEEPROM

Result:

<?xml version="1.0" standalone="yes"?>
<board>
 <brand>Elphel</brand>
 <model>10369</model>
 <rev>A</rev>
 <serial>000101</serial>
 <time>1214875806</time>
</board>

Remote/local digital temperature sensor

The built-in temperature sensor measures on-chip ("system") temperature. It can also be configured to measure the temperature of an additional sensor (small transistor) soldered to the pads W2-W3, as detailed below in the 'Connectors' section. The same circuit can also be used to automatically control a 3.3V or 5.0V fan (connected to J17), based on the output of either the internal or optional external temperature sensor. To configure the fan controller to run off the internal tempurature sensor, terminals W2 and W3 should be soldered together.

• Manufacturer - NXP Semiconductors
• Datasheet - SA56004X_5.pdf
• I2C slave address: 0x90

Example - reading register 0 (LTHB : Local Temperature High Byte):

http://192.168.0.9/i2c.php?width=8&bus=1&adr=0x4800 // Add register number to the base address of 0x4800

Returns xml file that includes the temperature register (signed char, °C), +48°C in the example below:

<?xml version="1.0"?>
<i2c>
 <width>8</width>
 <bus>1</bus>
 <slave>0x90</slave>
 <adr>18432</adr>
 <hex_adr>0x4800</hex_adr>
 <data>48</data>
 <rdata>48</rdata>
 <hex_data>0x30</hex_data>
</i2c>

Clock/calendar

10369 has on-board clock/calendar with the backup power provided by the supercapacitor (1.0F x 2.5V) - it should enable clock to run for several weeks if the camera is left without power.

• Manufacturer - NXP Semiconductors
• Datasheet - PCF8563_6.pdf
• I2C slave address: 0xa2

Example - reading register 2 (seconds):

http://192.168.0.9/i2c.php?width=8&bus=1&adr=0x5102 // Add register number to the base address of 0x5100

Returns xml file that includes seconds portion of the current time - 54sec in the example below:

<?xml version="1.0"?>
<i2c>
 <width>8</width>
 <bus>1</bus>
 <slave>0xa2</slave>
 <adr>20738</adr>
 <hex_adr>0x5102</hex_adr>
 <data>54</data>
 <rdata>54</rdata>
 <hex_data>0x36</hex_data>
</i2c>

Example - setting camera system time to the CMOS clock/calendar time:

http://192.168.0.9/i2c.php?cmd=fromCMOS

If the clock calendar contains valid date/time, it returns xml file like following:

<i2c>
<result>
 "System clock is set to Tue Jul  1 01:01:53 UTC 2008"
</result>
</i2c>

Otherwise (time is not set or the capacitor ran out of charge):

<i2c>
<result>
 "Set system time error (probably CMOS clock is not set)"
</result>
</i2c>

In that case the clock/calendar should be set.

Example - read CMOS clock/calendar time:

http://192.168.0.9/i2c.php?cmd=readCMOS

Work in the same way as "fromCMOS" but without modification of camera system time.

Example - setting the clock/calendar

First - set the system clock (i.e. open camera web interface, it will set the camera system time to that of the computer), then open

http://192.168.0.9/i2c.php?cmd=toCMOS

The result should be just:

<i2c>
<result>OK</result>
</i2c>

Connectors

J1 - AUX (from the CPU board)

J2 - IDE (from the CPU board)

J3 - Power (from the CPU board)

Note: +/- 48V are non-regulated input power rails. For 12V or 24V camera modifications these lines will also have +/-12V or +/-24V.

J4 - Power (optional - to the next boards)

Note: J4 is normally not installed. It is used in some camera modificatios where ther is another board on top of the 10369 that needs power - J4 is located oppposite to J3, same as on 10353 system board.

J5 - Power (optional 3.3V in)

Note: J5 is normally not installed. It may be used in multi-camera systems to provide 3.3V from the commomn to all camera modules power supply (DC-DC converter on 10353 should not be installed).

J6 - IDE (to adapter/riser)

J7 - SATA

J8 - USB0 (to external)

J9 - USB1 (to internal)

J10 - USB2 (to internal)

J11 - USB3 (to internal)

J12 - SYNC (internal, master)

Note: Connect J12 to J14 on the next camera in chain with a 4-conductor flex jumper, then from J13 of that next camera to the next in chain's J14, and so on. J12 and J13 have contacts on the bottom side, J14 - on the top to simplify chaining.

J13 - SYNC (internal, slave)

Note: Connect J12 to J14 of the next camera module in chain.

J14 - SYNC (internal, slave)

Note: Connect J14 to J13 of the previous camera module in chain (if the previous is not the master). If it is the master, connect J14 to the master's J12 instead of the J13

J15 - SYNC (external)

Note: In order to synchronize multiple cameras connect the pins 2 on all cameras together, same for all the pins 3. Additionally connect pin 1 on the 'master' (synchronization source) camera to pin 3, pin 4 - with pin2.

J16 - RS-232

Default speed: 115200

J17 - Fan

Note: Default configuration supports 3.3VDC fans, in order to switch to 5.0V you need to open (cut trace) jumper JP2 and close (solder together terminals of) jumper JP1.

W2-W4 - Terminals for external temperature sensor

External Temperature Sensor Terminals, 10369 Board, Bottom View

Note: To make a simple temperature sensor for this circuit, a small NPN or PNP transistor can be used. It is best to use a shielded, twisted pair cable to connect the external sensor to the terminals on the 10369 board. Start by soldering the shield wire to GND on W4. Then solder together the base and the collector of the sensor transistor. If using an NPN transistor (i.e. 2N3904), solder one wire from the transistor's base to W2, and the other wire from the emitter to W3. If using a PNP transistor (i.e. 2N3906), solder one wire from the transistor's emitter to W2, and the other wire from the base to W3. If no sensor is used, but a temperature controlled cooling fan is needed, W2 and W3 should be connected together. This will allow the 10369 board's built in fan control to set the fan speed based on the board's internal temperature sensor.