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From: Marcel T. <ma...@te...> - 2005-07-21 04:07:26
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On Wed, Jul 20, 2005 at 03:31:01PM -0700, Jeff Carr wrote: > The thing I never realized is that JTAG ports also have a TRST pin; but TRST pin is optional. The chip should work without it, but if it is present, then some things are simpler. > I don't even have this pin on my cable! I guess the Xilinx parts are > smart, they don't need you to assert this point for the part to be > programmed. > > But, my powerpc board does have a TRST pin on it's jtag port. I tried to > hook up my DLC5 cable and hoped I could identify the powerpc chip. I > would have been happy to see that work! Alas, it didn't. I wonder what > the TRST pin does then? Please use google to search info about TRST signal on JTAG port. -- +-------------------------------------------+ | Marcel Telka e-mail: ma...@te... | | homepage: http://telka.sk/ | | jabber: ma...@ja... | +-------------------------------------------+ |