lpcware

LPC177X JTAG Connection Problem -  Confusion on pull-ups, pull-downs on JTAG pins

Discussion created by lpcware Employee on Jun 15, 2016
Latest reply on Jun 15, 2016 by lpcware
Content originally posted in LPCWare by cem.ayyildiz on Tue Dec 02 02:56:14 MST 2014
I think, there is a confusion on pull-up, pull down resistors connected to JTAG interface of LPC177X.
In http://www.lpcware.com/content/faq/lpcxpresso/debug-design states that TCK pin should be connected to pull-down. In UM10470, it is connected to pull-up resistor.
Which one is correct?

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