Lpc2000

I think issue with JLINk is ---> it does not provide good reset signal to processor.
After download it does not provide Reset to CPU --> This in turn doe not provide default reset condition of CPU when you start debugging.
--Result is --- > you can  not break in the interrupts at all when you are reloading program or restart debugging before cycling power to main board  every time.
Also if you turn of power in the middle of debug and start  debugging again, it provides you blue screen well come messge..... wow...crash... I am using windows 2000 with SP4 installed ..
k b shah

  ----- Original Message ----- 
  From: Mark Butcher 
  To: lpc2000@yahoogroups.com 
  Sent: Monday, March 14, 2005 6:49 AM
  Subject: [lpc2000] Re: Segger / IAR J-Link JTAG and Blue Screen of Death



  Hi

  I use the J-Link and sometimes there are quite a lot of problems 
  with it and sometimes it works quite well.

  What I have found is that it is deadly to have programmed an 
  operating code via ISP. I can't explain why but the debugger hangs 
  and crashes and often doesn't want to do anything sensible.

  When I delete the code form FLASH (using ISP again - ie. Philips 
  upload uitility) all is very stable again.

  Could this help?

  Regards

  Mark Butcher

  www.mjbc.ch


  --- In lpc2000@yahoogroups.com, "jamesasteres" <jamesasteres@y...> 
  wrote:
  > 
  > I agree that the BSOD shouldn't be caused by a too-fast CPU.  
  Sorry, 
  > I can't help more.  But, one of the engineers here using that same 
  > IAR/JLINK combo has BSODs also.  Please post if you find out 
  > anything.
  > Tahn
  > 
  > --- In lpc2000@yahoogroups.com, "Dan Beadle" <dan.beadle@i...> 
  wrote:
  > > Thanks for the tip.  I do turn on PLL very early - in first dozen
  > > instructions or so.  
  > > 
  > >  
  > > 
  > > I do sometimes have trouble gaining control - get illegal CPU 
  ID.  
  > Power
  > > cycling the board (and resetting the CPU)  does seem to help 
  > that.  But I
  > > don't see how it would cause BSOD.  
  > > 
  > >  
  > > 
  > > IAR has been pretty good on compiler issues.  They swapped out 
  the 
  > JLink,
  > > hoping that it was hardware, but the driver failures are still 
  > happening too
  > > often.
  > > 
  > >  
  > > 
  > > Dan
  > > 
  > >  





        Yahoo! Groups Sponsor 
              ADVERTISEMENT
             
       
       


------------------------------------------------------------------------------
  Yahoo! Groups Links

    a.. To visit your group on the web, go to:
    http://groups.yahoo.com/group/lpc2000/
      
    b.. To unsubscribe from this group, send an email to:
    lpc2000-unsubscribe@yahoogroups.com
      
    c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. 



[Non-text portions of this message have been removed]