As I know JTAG uses pin 0.17 to 0.21. Those are primary JTAG pins. If you use secondary jtag pins, you get some pins othervise used by ETM freed. Secondary JTAG is configured in software(pin connect block). Secondary JTAG pins are 0.27 to 0.31. Pero > Is there no way to disable the ETM to be able to use the IO pins? > If not, I need to make a new target... > //Helge > --- In lpc2100@yahoogroups.com, "Helge Fabricius-Hansen" > <helge.fabricius@t...> wrote: >> Hi, >> >> In the manual it says that the ETM pins (P0.22-P0.32) are active >> when DBGSEL and RTCK is high during RESET! >> >> I am reading page 72 and page 206 in the LPC210x manual from Oct. >> 02, 2003. >> >> Does this mean that P0.22 - P0.31 not can be used when using a > JTAG >> debugger? >> >> My problem is that I get no respons on these pins when my jtag >> debugger is connected. Nor can I change the value of them from >> inside the debugger....! >> >> Anyone with the same problem??? >> >> //Helge > Yahoo! Groups Links
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Re: [lpc2100] Re: ETM and IO pins in debug mode
2004-02-09 by Peter Kuhar