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2005-12-12
2.4 POWERING
UP
When camera is powered up, the camera will boot. One of
the first things it will do is to start a self-test to make sure
that it is functional. After correct completion of the test a
check is added for the presence of a host that waits to
download an application (see also the next paragraph for
the IP number that needs to be set for this). If a host is
connected the camera waits for the download of the
application to be executed. The download is done via the
Ethernet interface connection. When a download is in
progress the Inca waits until the download is completed.
After completion it starts the execution of the program.
If the test for the host is negative then the Inca will load the
program, if available, stored on the flash file system to the
SDRAM and starts the execution. If no application is
available the Inca starts capturing images and send the
images to the VGA output. The latter will be the case if an
Inca is powered-up for the very first time.
2.4.1 IP
Number
During powering up, the camera is assigned an IP number.
The Inca 320 camera will use the following steps to
determine which IP number will be used:
1.
DHCP
When this option is enabled, the camera checks if a
DHCP server is available by making a request on the
network. When no response is given the next step will
be used.
2.
Auto IP address
This protocol is similar to DHCP but it does not require
a DHCP server. When this option is enabled all
devices on the network will make sure they get a
unique IP address by communicating with each other.
3.
Fixed IP address
The camera is assigned a fixed IP address. This
address can be set directly in the camera.
4.
Local IP address
When all previous options fail, the camera will create
an IP address based on the device ID of the camera.
In which case the address will always be in the range:
192.168.10.1 to 192.168.10.127. When more than one
Inca 320 camera has the same device ID, then this will
result in the two cameras having the same IP address,
which will result in a conflict on the network.
These options can be enabled or disabled individually (with
the exception of the local IP address) and can be
configured by means of the Flash File Manager program
which is part of the Rhapsody, Clicks and Promise
packages.
2.4.2
System LED
The system LED is situated next to the Ethernet connector.
The system LED can illuminate in 3 colours namely red,
green and orange. By connecting the power to the Inca the
LED illuminates red. During start-up the LED is illuminating
orange.
Once start-up has finished the next step is the hardware
initialization. During the start of this initializing phase the
LED will blink for a very short time green and stays
constant green when this phase is terminated successfully.
