参数资料
型号: ISPNANO S3 KIT
厂商: Equinox Technologies
文件页数: 132/134页
文件大小: 0K
描述: ISP PORTABLE PROGRAMMER
标准包装: 1
类型: 便携式 ISP
适用于相关产品: ATMEL AT90S、AT90CAN、AT90USB、ATtiny、ATmega、AT91SAM7xx、Zensys Z-Wave、24xxx 系列 EEPROM
所含物品: 编程器,线缆,电源
其它名称: 483-1022
ISPNANO S3 KIT-ND
Q5595084
T1310537
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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).
4.7 Switching the RELAYs OFF
The RELAYs can be switched OFF by simply performing a ‘Programmer Reset’.
Instructions:
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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.
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:
ISPnano Series Programmer - User Manual – V1.11 – 12 May 2011
116
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ENABLE the ‘External Target Vcc Switch’ .
ENABLE the ‘Target Vcc is left switched ON at end’ option – see illustration below.
Tick this option to
keep RELAYs on at
end of project
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.
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