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Target h/w running on 3V3, how to connect to programmer?

 
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KaKiaYam
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Target h/w running on 3V3, how to connect to programmer?
PostPosted: Fri Sep 26, 2008 5:56 am     Reply with quote
Hi all,

I noted that the hardware connection to the ICD-U40 assume the target hardware to be running on 5V0.

If my board is running on 3V3, how to I connect to the ICD?

Thanks!

KaKiaYam
FvM



Joined: 27 Aug 2008
Posts: 2337
Location: Germany

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PostPosted: Sat Sep 27, 2008 6:19 am     Reply with quote
I don't know the exact specification, but ICD-U40 is operating well with 3V systems. The I/O voltages are derived from VCC, apparently.
FvM



Joined: 27 Aug 2008
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PostPosted: Tue Sep 30, 2008 12:13 am     Reply with quote
As an addition, there actually is a specification.

http://www.ccsinfo.com/content.php?page=ICDcomp
http://www.ccsinfo.com/devices.php?page=icddevices
monkeyman



Joined: 05 Jun 2008
Posts: 18

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PostPosted: Wed Oct 01, 2008 7:28 am     Reply with quote
here the connections
http://www.ccsinfo.com/faq.php?page=icd_connection
i think 47K on Mclr in 5V and 33K on 3v.
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