Telegesis
TG-ETRX2CF-PM-01-200
14
ETRX2CF v2
Product Manual
2.01
©2008 Telegesis (UK) Ltd
ETRX2CF Product Manual (Rev 2.01)
7 Firmware upgrades
The firmware which is loaded onto the integrated ETRX2 module can be upgraded over the air
using the Ember bootloader as described in the Development Kit manual. Also a
CF™ card
connected to a laptop via a PCMCIA adaptor can be upgraded using Telegesis Terminal as
described in the Development Kit manual. Note that there are complications if you wish to
bootload new firmware using
Windows Vista. This is because you need to change the CF card‟s
baud rate
to 115200 to operate the bootloader; under Vista you must click the”Disconnect” button
on Telegesis Terminal before you can change the baud rate, which will usually power down the CF
card and terminate the bootloader.
Setting the correct baud rate before issuing the “AT+BLOAD”
command should solve the problem but the ETRX2
‟s baud rate must also be altered by setting the
correct S-register.
Alternatively, access to the SIF programming interface is possible by removing the antenna cover
of the ETRX2CF wireless mesh networking Compact
Flash™ card. It is not permanently attached.
Via the SIF interface it is also possible to upgrade the card with the Ember EZSP interface.
8 Custom Firmware Development
If you intend to develop custom firmware to go on to the ETRX2CF you need to contact Ember to
obtain access to their suite of development tools and their stack.
In order to download custom firmware on to the ETRX2, the Ember bootloader can be used or
alternatively the ETRX2CF
‟s SIF programming interface can be directly connected to the Ember
InSight Adaptor as shown in Figure 5. The SIF interface allows real time debugging of custom
applications using Ember‟s development toolchain.
Figure 5.
CF™ card and Insight Adaptor
Please Note: Whilst programming the ETRX2CF using the Ember InSight Adaptor or InSight USB
link, the card should be powered from a suitable PC or PDA and the power select switch of the
InSight Adaptor should be set to “Ext”.
