ADSP-BF527 EZ-KIT Lite Evaluation System Manual
1-25
Using ADSP-BF527 EZ-KIT Lite
separate power connector and a regulator must be designed on a daughter
card. Additional circuitry can add extra loading to signals, decreasing their
maximum effective speed.
L
Analog Devices does not support and is not responsible for the
effects of additional circuitry.
Power Measurements
Several locations are provided for measuring the current draw from vari-
ous power planes. Precision 0.05 ohm shunt resistors are available on the
VDDINT
,
VDDEXT
, and
VDDMEM
pins. For the current draw measuments, the
associated jumper (
P14
,
P15
, or
P16
) should be removed. Once the jumper
is removed, the voltage across the resistor can be measured using an oscil-
loscope. Once the voltage is measured, the current can be calculated by
dividing the voltage by 0.05. For the highest accuracy, a differential probe
should be used for measuring the voltage across the resistor.
For more information, see
“VDDMEM Power Jumper (P16)” on
.
Power-On-Self Test
Once assembled, each EZ-KIT Lite is fully tested for an extended period
of time with a power-on-self test (POST). The POST tests all EZ-KIT
Lite peripherals and validates functionality as well as connectivity to the
processor. The POST is loaded into the parallel flash memory (
U5
) and
SPI flash memory (
U8
), which can be activated by resetting the board and
pressing the associated push button(s). The POST also can be used as a
reference for a custom software design or hardware troubleshooting.
www.BDTIC.com/ADI
Summary of Contents for Lite ADSP-BF527 EZ-KIT
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