Lpc2000

--- 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

Helge,
  To use those pins durring debug, you must use the secondary JTAG
port, to do this you must have connections for BOTH primary, and
secondary JTAG ports. Your code must enable the PIN Sel functions for
the secondary JTAG port, and then it may be used, and you only lose
the upper pins.

  Scan the previous posts, as we have discussed the solution before.