This is a linker var called '_end'. So,
extern int _end; int m; (int *) m = &_end; Now 'm' will contain flash last address. ~d On Sunday 05 September 2004 05:45, Chris Liechti wrote: > Berndt Josef Wulf wrote: > > How do I find the top most address of flash used by applications at > > runtime? I > > top most address: 0xfff0 > the interrupt vectors are always there ;-) > > > want to load and execute applications under the control of a monitor > > program. > > that probably means you want to use entire flash segments anyway. > > > Is there a symbol that can be queried for this purpose? > > > > At this point of time, I only managed to do this by creating a section > > that is placed at the top flash memory address that can be queried by the > > application, see below: > > ... > > > Is this the way to do it or is there an easier way? > > yes, i would place the mointor at the upper end of the memory (as you > probably want to use the interrupt table anyway, at least for the reset). > then when you only use entire flash segments, which makes sense if you > want to erase some of them at runtime, you'll have to choose a size > multiple of 512 bytes. > > i used something like this in the serial<->jtag adapter, see mspgcc > CVS/serJTAGfirmware. there i use -Ttext=0xe000 as linker option, which > limits the text section to the upper 8kB of the flash. > the rest of the flash is used to download user code. > > you probably need a similar trick for the RAM usage too. > > chris > > > ------------------------------------------------------- > This SF.Net email is sponsored by BEA Weblogic Workshop > FREE Java Enterprise J2EE developer tools! > Get your free copy of BEA WebLogic Workshop 8.1 today. > http://ads.osdn.com/?ad_id=5047&alloc_id=10808&op=click > _______________________________________________ > Mspgcc-users mailing list > Mspgcc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mspgcc-users
