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Distributor of Equinox Technologies: Excellent Integrated System Limited
Datasheet of ISPNANO S3 KIT - ISP PORTABLE PROGRAMMER
Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com
# Function
1 Line Driver / Target Vcc Voltage setup
2 'Programmer controlled Target
Power supply' setup
3 External Target Vcc Switch controls
4.3 Setting the Programmer Signal Line Driver voltage
The 'Programmer Signal – Line Driver Voltage' is the voltage level of logic '1' signal on any of the
programmer I/O pins.
Please note:
This voltage should usually be set to the same voltage that the Target IC is actually running at.
•
If the programmer is NOT powering the Target System but you still wish to measure / validate
•
the Target Voltage, tick the 'Check Target Voltage' box.
4.4 'Programmer controlled Target Power supply' setup
The 'Programmer controlled Target Power supply' is a fully programmable power supply which
can be used to power the Target System. It is capable of generating any voltage from 1.2 to 5.0V @
300mA.
Please see section 4.0 of the main User Manual for full details of how to set up this power
•
supply.
This power supply is routed through a relay to the 'TVCC (Target Vcc)' pin of the 'Target ISP
•
Port' so it is DISCONNECTED from the Target System until the RELAYs are switched ON.
When powering up the Target System using this power supply, the programmer will
•
automatically switch the relays coils ON, wait for 50ms for the contacts to switch properly
(debounce delay) and then switch the 'Programmer controlled Target Power supply' ON.
This debounce delay helps to extend the life of the relay contacts by not switching the contacts
when the power is on.
The 'PSU_OUT_DELAY' is the overall time allowed for the power supply voltage and current
•
to settle. This parameter should always be set to at least 10ms greater than the 'Voltage Settle
time' and 'Current Settle time'.
Please note:
112
Further information
Sets up the voltage of the programmer I/O signal lines
•
ie. SPI, JTAG. PDI, TPI lines.
This voltage should be set so it is the same as the
•
voltage at which the Target IC is powered at.
These are the controls for the 'Programmer
•
controlled Target Power supply'.
This power supply should only be enabled if the
•
programmer is to power the Target System (UUT).
These controls supporting switching of the 'EXT-VCC'
•
supply which in turn switches the relay coils ON /
OFF.
ISPnano Series Programmer - User Manual – V1.11 – 12
th
May 2011
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