ISPNANO S3 KIT Equinox Technologies, ISPNANO S3 KIT Datasheet - Page 132

• Manufacturer Part Number: ISPNANO S3 KIT
• Description: ISP PORTABLE PROGRAMMER
• Manufacturer: Equinox Technologies
• Series: -r
• Type: Portable ISPr

Specifications of ISPNANO S3 KIT

• Contents: Programmer, Cables, Power Supply
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: ATMEL AT90S, AT90CAN, AT90USB, ATtiny, ATmega, AT91SAM7xx, Zensys Z-Wave, 24xxx Serial EEPROM's
• Other names: 483-1022; ISPNANO S3 KIT; Q5595084; T1310537

4.7 Switching the RELAYs OFF
The RELAYs can be switched OFF by simply performing a ‘Programmer Reset’.
Instructions:
4.8 Leaving the RELAYs ON at the end of a project
If your programming sequence involves multiple programming steps then you probably do not want
the relays to switch OFF and then ON again after each step in the sequence. This would waste time
waiting for the ‘Relay Debounce delay’ and would also wear the relays out quicker. To around this
problem, it is possible to force the relays to stay ON at the end of ‘Programming Project’ so that the
next programming action does not have to switch them on again.
To force the RELAYs to stay ON at the end of a project:
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The ‘External Vcc Input Voltage’ is the voltage applied to the ‘DC EXT’ connector.
The ‘External Vcc Output Voltage’ is the voltage applied to the relay coils which will be
slightly lower that the ‘External Vcc Input Voltage’ due to the volt drop across the FET
switch.
Now that the relay coils are energised, the ‘Target ISP Port’ connections are routed to the
‘Internal Programmer Power / Line Driver Circuitry’ and the external ATE System is now
disconnected.
It should now be possible to power up and program a device on the Target System (UUT).
Click the button
The ‘EXT-VCC’ switch is switched OFF and so the relays switch OFF.
The signals on ‘TARGET ISP Port’ are now connected back to the ‘ATE Port’.
The programmer circuitry is now completely isolated from both the ATE and Target System.
ENABLE the ‘External Target Vcc Switch’.
ENABLE the ‘Target Vcc is left switched ON at end’ option – see illustration below.
When the project is executed either in ‘EDS Mode’ or ‘Standalone Mode’, the RELAYs will
remain ON at the end of the project and will not switch OFF until a ‘RESET Programmer’
command is sent.
ISPnano Series Programmer - User Manual – V1.11 – 12
Tick this option to
keep RELAYs on at
end of project
th
May 2011