RE: Problems with IAR and programming

"'Peter Grey' [email protected] [msp430]" <[email protected]> Sun, 22 Feb 2015 10:41:33 +0800
Newsgroups gmane.comp.hardware.texas-instruments.msp430.discuss
Message-ID <[email protected]>
Hi David

My PW28 board currently has settings to EXT for the power so it is supplied
by a 3.3V plugpack. This will be the same voltage that is fed to my target
board. Following Emmett's suggestion I will soon find out whether this is
wrong.
Thanks for the help

Peter

-----Original Message-----
From: [email protected] [mailto:[email protected]] 
Sent: Saturday, 21 February 2015 10:30 PM
To: [email protected]
Subject: Re: [msp430] Problems with IAR and programming

My memory of the 14 pin JTAG connector was of two different Vcc connections.
One provided power from the FET to the target while the other was used to
sense the Vcc level on the target and adjust signal levels.

A quick check of slau278u shows two signals:

VCC_TOOL
VCC_TARGET

VCC_TOOL provides power to the target while VCC_TARGET is used to sense the
Vcc level.

Having an external power supply connected to VCC_TOOL is just asking for
trouble.

--
David W. Schultz
http://home.earthlink.net/~david.schultz
Returned for Regrooving




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Posted by: "Peter Grey" <[email protected]>
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