2.4. Write Prohibited Regions
The data stored by the EEPROM, CPLD and i.MX257 electrical fuse (e-Fuse) is
used by the software contained in this product. Please do not write to these regions
as the product may stop operating correctly. Purposefully writing to these regions
voids the product warranty.
2.5. Electromagnetic Interference
The Armadillo-400 Series are Class A Information Technology Equipment
[3]
as
defined under VCCI Council standards. There are cases where this type of equip-
ment can cause electromagnetic interference when used in home environments. In
this situation, the user may be required to take appropriate measures to alleviate the
problem.
The Armadillo-440 LCD Model (Armadillo-440 together with the Armadillo-400
Series LCD Expansion Board fixed on an acrylic board) does not meet the VCCI
standard and can cause electromagnetic interference.
In order to clear Class A when using the Armadillo-400 Series LCD Expansion
Board included in the Armadillo-440 LCD Model, it is necessary to strengthen the
ground of the expansion board. For example, by using a metal instead of acrylic
board or connecting the fixing holes of the Armadillo-440 and the LCD Expansion
Board with a wide conducting line.
Please be aware of the following points when newly designing an expansion board which connects to the LCD interface
on Armadillo-440 or Armadillo-460.
With an expansion board that includes a device that has large power use fluctuations,
such as with an audio amp, when only the GND line of the flexible flat cable (FCC)
is connected the expansion board may produce electromagnetic noise. To mitigate
the noise, strengthening of the expansion board's ground is recommended. For ex-
ample, by connecting the fixing holes of the Armadillo-440 or Armadillo-460 and
the expansion board GND by metal plate or wide conducting line.
2.6. Warranty
As laid out in the Product Warranty Policy which is provided with this product or available on our web site, the main
board of this product is covered by a one year replacement warranty from time of purchase. Please note that the other included
goods and software are not covered by the warranty.
[3]
Armadillo-420, Armadillo-440 and Armadillo-460 have cleared Class A when tested with the AC adapter included in the Development Set
(UNIFIVE US300520).
Armadillo-440 LCD Model Development Set Startup Guide
Precautions
13
