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Thread
2005-02-08 by jan_c_weber
Hi Folks, sorry for this newbie question, but I wonder what the /TRST pin on the JTAG connector is good for as the wiggler devices I've seen here do not connect to this pin? All I know is that it resets the TAP controller, but isn't this needed when using a "LPT -> Wiggler -> DUT"-setup? Is this pin reserved for advanced debugging functions? Thanks for your help, Jan
2005-02-08 by Leon Heller
----- Original Message -----
From: "jan_c_weber" <jan.weber@...> To: <lpc2000@yahoogroups.com> Sent: Tuesday, February 08, 2005 1:23 PM Subject: [lpc2000] JTAG question > > > Hi Folks, > > sorry for this newbie question, but I wonder what the /TRST pin on > the JTAG connector is good for as the wiggler devices I've seen here > do not connect to this pin? All I know is that it resets the TAP > controller, but isn't this needed when using a "LPT -> Wiggler -> > DUT"-setup? Is this pin reserved for advanced debugging functions? It isn't needed for Wiggler-type interfaces. You do need to tie it high on the LPC2000 chip, though. Leon -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.8.6 - Release Date: 07/02/2005