[Icc-avr] Debug using Jtag

[Jim Patchell]

If you are using AVR Studio 4.12 or better (well, these are the ones I 
am familiar with, all versions of AVR studio will do this), in the 
breakpoints and tracepoints window, you should see where you can set 
data breakpoints.  You can set a break point to break on reads and/or 
writes to a single memory location....very handy.

-Jim


Steven Lose wrote:
> Hi.
> 
>  
> 
> I have a SW bug… Yes, I know, never happened before.
> 
>  
> 
> Bug is that PORTD on my ATMEGA128 is overwritten somewhere; I have 
> debugged for a long time now and found out, that it is not the regular 
> function that is called by mistake or something like that.
> 
> Only 2 pins are output on the Port, TX of Uart1 and Bit 7 witch is port 
> direction, so there is only 1 function that writes the port.
> 
> I would like to somehow set up the JTAG to break when PORTD is written 
> to, but if possible not when the normal function is accessing the PORTD.
> 
>  
> 
> Is it possible to set up the JTAG in such a manner?
> 
> Med venlig hilsen / Best regards / mit freundlichen Grüßen
> 
> *EC POWER A/S*
> 
> *Steven Lose*
> 
> Software Ingeniør
> 
> Tlf.: +45 87434100
> 
> Direkte tlf. +45 58286608
> 
> Email: sl at ecpower.dk <blocked::mailto:bsl at ecpower.dk>
> 
> www.ecpower.dk <http://www.ecpower.dk>
> 
>  
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> Icc-avr mailing list
> Icc-avr at imagecraft.com
> http://dragonsgate.net/mailman/listinfo/icc-avr