Hi,
On 13.01.2015 19:04, shishir tiwari wrote:
Hi petersen,
Thanks for your information.
we are trying to put your method but still is it not working. we are
studying and doing some experiments.
one more question : In hwtimer_init()--> hwtimer_arch_init() this need
to be implemented in harsware is compulsory?? for scheduling to work?
nope, the timer is generally not needed for scheduling.
Cheers,
Hauke
thanks
shishir tiwari
On Mon, Jan 12, 2015 at 10:01 PM, Hauke Petersen
<[email protected]> wrote:
Hi Shishir,
when RIOT initially starts up, the CPU is normally running in interrupt mode
(using the interrupt mode stack). After creating the stacks for the main and
the idle threads, the CPU must be put into thread-mode. This means the main
threads initial context needs to put into the CPUs registers and the stack
pointer must put to the main-threads stack. After this is done the CPU can
just do 'normal' task switching for switching between threads.
So to put it short: in cpu_switch_context_exit() you simply must load the
main threads context into the CPUs register and point the stack pointer to
the main threads stack.
Let me know if you need further information!
Cheers,
Hauke
On 12.01.2015 15:35, shishir tiwari wrote:
Hey Everyone,
I have been porting RIOT OS to new processor(ARC) and i had compilied
hello world program successfully.
When i debug the helloworld.elf in kernel_init function the
thread_create() function has execute successfully.But the thread
"idle_thread" "and main_trampoline" function is not been called. why?
What is thing need to be done on this cpu_switch_context_exit()
function. please explain me.
Thanks
Shishir Tiwari
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