Distributor of Equinox Technologies: Excellent Integrated System Limited
Datasheet of ISPNANO S3 KIT - ISP PORTABLE PROGRAMMER
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ISPnano Series Programmer - User Manual – V1.11 – 12
th
May 2011
117
4.9 Measuring the Target Vcc voltage
It is a good idea to measure the
‘Target Vcc’
voltage using EDS as this checks that the wiring and
project settings are correct.
Instructions:
•
Follow the instructions in section 4.6 to set up the RELAY control etc.
•
Click the
button in the
‘External Target Vcc Switch’
pane
•
Click the
button to measure the
‘Target Vcc’
voltage – see screenshot
below.
EDS should now report a valid voltage for
‘Target Vcc’
….
If EDS measures 0V…..
Click this button to
measure the ‘Target Vcc’
voltage
The programmer may measure 0.00V in the
following conditions:
•
The RELAYs are OFF
•
No Target System is connected
•
There is no power on the Target System
•
The ‘Target Vcc’ is not connected
Click this
button to
switch
RELAYs ON
•
The programmer measures the voltage
connected to the ‘TVCC’ pin on the ‘Target
ISP Port’ connector.
•
This should read back the voltage at which
the Target IC is running at.
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