Z-World EG2110, User Manual

Page: 18 / 50

14 RabbitLink (EG2100)
line in the Discover window will cause the information for that RabbitLink to be placed into the
appropriate fields in the Communications dialog box.
3.1.3 Password Protection
Though not required, it is highly recommended that the passphrase security feature be activated
before the RabbitLink is deployed. This gives some protection to the embedded target system from
unauthorized communication. The passphrase may be up to 256 characters long. The serial con-
sole command “
set passphrase
” will prompt twice for a passphrase and will store the
hashed value of it on the RabbitLink. When a session starts, the RabbitLink will ask for the pass-
phrase, allowing access to the embedded system only after receiving the correct value. If no pass-
phrase is set, just press
<ENTER>
when asked for it. If you forget the passphrase, the only way to
recover is to use the RabbitLink serial console to set a new passphrase. This will require the hard-
ware connections shown in Figure 2.1.0-2 on page 8 and the software setup described in “Stati-
cally Assigned Network Parameters” on page 10.
3.1.4 Using Dynamic C or the RFU to Download
Regardless of whether you use the RFU or Dynamic C, downloading across an Ethernet connec-
tion is essentially the same as across a serial connection.
The RFU downloads bin files that were previously created using Dynamic C. Dynamic C starts
with a source code file and compiles it down to the target.
3.1.5 Remote Debugging with Dynamic C
Once a program is successfully downloaded to the target controller attached to the RabbitLink,
Dynamic C may be used to debug the program as if the PC running Dynamic C was directly con-
nected to the target. Refer to the Dynamic C User’s Manual for detailed information on download-
ing and debugging.
3.1.6 Troubleshooting Tips
•
If Dynamic C is unable to establish communication with the RabbitLink, make sure that the
RabbitLink is powered on, and make sure that the Ethernet cable is firmly connected to the
RabbitLink and that the LED labeled LINK is on.
• If Dynamic C is still unable to establish communication with the RabbitLink, make sure that
Dynamic C has the correct IP address and control port information. Look in the
Communications dialog box.
• If Dynamic C is able to establish communication with the RabbitLink, but midway through the
download process displays either "Error receiving Flash ID from target"or
"Target Communication Error,” check to make sure that the program download cable is
plugged in correctly from the RabbitLink to the controller being programmed, and that the con-
troller is powered on.