Distributor of Equinox Technologies: Excellent Integrated System Limited
Datasheet of ISPNANO S3 KIT - ISP PORTABLE PROGRAMMER
Contact us: [email protected] Website: www.integrated-circuit.com
ISPnano Series Programmer - User Manual – V1.11 – 12
th
May 2011
74
4.5.4 Setting up a project in EDS to externally power the Target System
The best way to test that your hardware set up is correct is using the EDS – Development Mode.
Instructions:
•
Launch EQTools
•
Create a new EDS – Development Project
•
Select your target device
•
On the
‘Target Power Supply’
screen, select the following settings:
Notes:
•
The
‘Programmer controlled Power Supply’
must be switched
OFF
so that it does not clash
with the power supply on the Target System.
•
The
‘EXTERNAL Switched Vcc Supply’
must be switched
ON
in the Programming Project.
•
The ‘Target Voltage settings’ are used to power the programmer
‘Line Drivers’
and so this
voltage must be set in the
‘Programming Project’
to the same value as the
‘Target Voltage’
which the Target IC is running from. So, if the Target IC actually runs from 3.3V then the
voltage should be set to 3.3V in the project. The programmer I/O lines will then swing between
0V and 3.3V.
•
The
‘Target Voltage (TVCC)’
can still be measured by the programmer.
•
A volt drop of 50 to 150mV across the FET switch inside the programmer may cause the
‘EXTERNAL VCC OUTPUT Voltage’
to be slightly lower than the
‘Input Voltage’
.
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