Hi, Thanks for your reply. Could you explain me what do you mean by "When a debugger backtraces off the end of the callstack" I don't get it very well. Anyway I have to check how to disable this in my debugger. Regards, marko >Hi Marko, > >When a debugger backtraces off the end of the callstack it may >unwittingly reference peripheral registers - could you be affected by >this? We've stopped CrossStudio accessing peripheral registers when >backtracing to handle this case. > >Regards >Michael > > > >>Hi, >> >>I am aware that reading periphery in some windows could clear some flags, but I don't have any "periphery window" opened.... >> >>marko >> >> >> >> >> >>>Od: "Dan Beadle" <dan.beadle@...> >>>Datum: 2005/11/15 Tor PM 04:06:02 CET >>>Za: <lpc2000@yahoogroups.com> >>>Zadeva: RE: [lpc2000] Breakpoint not stopping timer >>> >>>I have seen this when I have the VIC registers open in a window. >>> >>>As I recall, the issue is something like this: When I hit the first >>>interrupt, another hit while stopped in the IRQ, then reading the VIC in >>>the debugger clears then pending timer int. Then no more interrupts. >>>Generally, I keep the VIC register window closed. >>> >>> _____ >>> >>>From: lpc2000@yahoogroups.com [mailto:lpc2000@yahoogroups.com] On Behalf >>>Of Marko Panger >>>Sent: Tuesday, November 15, 2005 6:26 AM >>>To: lpc2000@yahoogroups.com >>>Subject: [lpc2000] Breakpoint not stopping timer >>> >>> >>>Hi all, >>> >>>I am facing a strange problem when debugging applications with match >>>compare timer interrupts enabled. >>>Hi all, >>> >>>I have a timer match IRQ which fires every 1ms. Basically a ticker. >>>Because the timer is used also for other purposes I add a value of >>>1000 to the timer match register to get the next interrupt after 1ms >>>(timer clock is 1Mhz). I do also increment a variable in the match IRQ. >>> >>>I have noticed that if I a put a breakpoint (it doesn't mater where, >>>IRQ or main loop) the IRQ isn't hit anymore. After playing around I >>>noticed that when the breakpoint is hit the timer still goes on for >>>some time, but without hitting the IRQ. Because of this the timer >>>count register goes ahead of the match register and the match does not >>>occur anymore. Further I discovered that when single stepping the >>>global ticker variable is incremented which means that single stepping >>>takes more than 1ms. >>> >>>I am wondering that the internal JTAG logic has some flavors or is >>>this my debugger issue ? Has anybody else noticed such a behavior ? >>> >>>Regards, >>>marko >>> >>> >>> >>> >>> >>> >>>SPONSORED LINKS >>>Microprocessor >>><http://groups.yahoo.com/gads?t=ms&k=Microprocessor&w1=Microprocessor&w2 >>>=Microcontrollers&w3=Pic+microcontrollers&w4=8051+microprocessor&c=4&s=9 >>>3&.sig=tsVC-J9hJ5qyXg0WPR0l6g> Microcontrollers >>><http://groups.yahoo.com/gads?t=ms&k=Microcontrollers&w1=Microprocessor& >>>w2=Microcontrollers&w3=Pic+microcontrollers&w4=8051+microprocessor&c=4&s >>>=93&.sig=DvJVNqC_pqRTm8Xq01nxwg> Pic microcontrollers >>><http://groups.yahoo.com/gads?t=ms&k=Pic+microcontrollers&w1=Microproces >>>sor&w2=Microcontrollers&w3=Pic+microcontrollers&w4=8051+microprocessor&c >>>=4&s=93&.sig=TpkoX4KofDJ7c6LyBvUqVQ> >>>8051 microprocessor >>><http://groups.yahoo.com/gads?t=ms&k=8051+microprocessor&w1=Microprocess >>>or&w2=Microcontrollers&w3=Pic+microcontrollers&w4=8051+microprocessor&c= >>>4&s=93&.sig=1Ipf1Fjfbd_HVIlekkDP-A> >>> >>> _____ >>> >>>YAHOO! GROUPS LINKS >>> >>> >>> >>>* Visit your group "lpc2000 >>><http://groups.yahoo.com/group/lpc2000> " on the web. >>> >>>* To unsubscribe from this group, send an email to: >>> lpc2000-unsubscribe@yahoogroups.com >>><mailto:lpc2000-unsubscribe@yahoogroups.com?subject=Unsubscribe> >>> >>>* Your use of Yahoo! Groups is subject to the Yahoo! Terms of >>>Service <http://docs.yahoo.com/info/terms/> . >>> >>> >>> _____ >>> >>> >>> >>> >>>[Non-text portions of this message have been removed] >>> >>> >>> >>> >>> >>>Yahoo! Groups Links >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >> >> >> >>Yahoo! Groups Links >> >> >> >> >> >> >> >> >> >> > > > > > >Yahoo! Groups Links > > > > > > > > > [Non-text portions of this message have been removed]
Message
Re: [lpc2000] Breakpoint not stopping timer
2005-11-15 by Marko Panger