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AVR2070
15
8240B-AVR-06/09
the source code and precompiled code have USB disabled. Due to limitations on the
SAM7X board, if a reset is necessary, the USB cable must be removed and any open
USB terminal sessions closed and then the board can be reconnected and the USB
terminal session restarted.
4.4 Network Interfaces
uTasker also supports a telnet interface through the RJ45 network connector. The
telnet interface is nearly identical to the serial interface. It offers the same menu
selections and utilizes the default IP address of 192.168.1.125. This address can be
changed with the “I” menu selection. The network interface also provides the
connection for the on board simple web server.
Figure 4-4-1 shows an example menu interface. The complete menu commands are
fully described in Table 5-1.
To access the telnet interface, the RJ45 cable can be connected directly to the PC's
network interface card or to a hub/router.
Note:
If connecting a PC directly to the SAM7X, the Network Interface Card
(NIC) on the computer will need to be configured to communicate on
the same IP subnet as the SAM7X.
To start the telnet session simply type “telnet 192.168.1.125” at the DOS prompt and
press enter. Alternately, on a Linux machine, type “telnet -e / 192.168.1.125” at the
terminal prompt and press enter. The “-e /” defines the escape character. Once the
telnet session is started, type “/” and a telnet prompt will appear “telnet>”. Type “mode
line” and press enter twice to return to the SAM7X telnet session. The “mode line”
command forces the Linux telnet session to echo characters typed by the user to the
telnet screen.
Figure 4-4-1. Main Menu
4.5 AT91SAM-ICE
The ARM
®
is programmed via the AT91SAM-ICE JTAG adapter, see the web site:
www.atmel.com/dyn/products/tools_card.asp?tool_id=3892
for more information on
this device. For Linux based systems the CrossConnect JTAG device is
recommended, see the web site: www.rowley.co.uk/arm/CrossConnect.htm
for more
information on this device.