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Re: how can I create real time clock interrupt?


On Sat, 2002-11-02 at 02:49, 李晖 wrote:
> I try to create a interrupt attach to RTC,but I failed.the code I wrote as below:
> cyg_handle_t timer_intr_handle;
> 	cyg_interrupt timer_intr;
> 	
> 	cyg_interrupt_create(CYGNUM_HAL_INTERRUPT_RTC, 1, 0, do_count, 0, &timer_intr_handle, &timer_intr);
> 	cyg_interrupt_enable();
> 	cyg_interrupt_attach(timer_intr_handle);
> 
>  I download my code to target, and using GDB(insight) debug my code,.When program run to the  cyg_interrupt_create(...) sentence, the GDB warning me it "program recieve a signal SIGSEGV, segmentation fault"  and then terminate the program.

You probably should not be calling 'cyg_interrupt_enable'.  This
will happen automatically when you let the scheduler run.

Also, the kernel will have already attached to this interrupt.
Are you sure that this is what you want/need?

n.b. sending the same message to the mailing list three times
will not improve the response time :-(

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Gary Thomas                  |
eCosCentric, Ltd.            |  
+1 (970) 229-1963            |  eCos & RedBoot experts
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