I came across the same problem and I agree with you. I will use your suggestion
Thanks a lot Phil. Brian Karr wrote: > > Hi All, > > For applications with limited RAM, it's useful to optimize the minimum > allowed stack size for the Idle thread. > > It has been identified that the eCos CYGNUM_HAL_STACK_SIZE_MINIMUM which > is > used for the Idle thread and for ASSERT of thread creation is too high > when > the system is set to CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK. > > A suggested change for ARM is included in the diff below (with hg-ecos > trunk). A search of the list archives did not turn up an equivalent change > for this. > > Without this the minimum stack size and the size of the idle stack will be > 1120 bytes assuming a nesting level of 4. > > Best, > > Brian > > > > diff -r d6c0c0e0431c packages/hal/arm/arch/current/include/hal_arch.h > --- a/packages/hal/arm/arch/current/include/hal_arch.h Tue Jan 26 > 11:27:47 > 2010 +0000 > +++ b/packages/hal/arm/arch/current/include/hal_arch.h Sun Jan 31 > 22:52:44 > 2010 -0800 > @@ -400,9 +400,14 @@ > // Space for the maximum number of nested interrupts, plus room to call > functions > #define CYGNUM_HAL_MAX_INTERRUPT_NESTING 4 > > -#define CYGNUM_HAL_STACK_SIZE_MINIMUM \ > - (CYGNUM_HAL_MAX_INTERRUPT_NESTING * > CYGNUM_HAL_STACK_INTERRUPT_SIZE > + \ > - 2 * CYGNUM_HAL_STACK_FRAME_SIZE) > +#ifdef CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK > +#define CYGNUM_HAL_STACK_SIZE_MINIMUM \ > + (2 * CYGNUM_HAL_STACK_FRAME_SIZE) > +#else > +#define CYGNUM_HAL_STACK_SIZE_MINIMUM \ > + (CYGNUM_HAL_MAX_INTERRUPT_NESTING * > CYGNUM_HAL_STACK_INTERRUPT_SIZE > + \ > + 2 * CYGNUM_HAL_STACK_FRAME_SIZE) > +#endif > > #define CYGNUM_HAL_STACK_SIZE_TYPICAL \ > (CYGNUM_HAL_STACK_SIZE_MINIMUM + \ > > > > > > -- > Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos > and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss > > > -- View this message in context: http://old.nabble.com/Idle-thread-min-stack-size-tp27400385p28791370.html Sent from the Sourceware - ecos-discuss mailing list archive at Nabble.com. -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss