Timer0 and interrupt every fixed period. How??

amoreno · ‎2009-08-20

Posted on August 21, 2009 at 07:31

amoreno · ‎2007-11-05

Posted on November 05, 2007 at 13:43

Hello,

I would be pleased if you could help me with my first TIMER and Interrupt routine.

I'm trying to activate an interrupt every certain time.

My is configure code of Timer & interrupt is:

TIM_Init(TIM0);

TIM_PrescalerConfig(TIM0, 6 );

TIM_ClockSourceConfig(TIM0, TIM_INTERNAL);

TIM_ITConfig(TIM0, TIM_TO_IT, ENABLE); /*Interrupt overflow*/

TIM_CounterConfig(TIM0, TIM_START);

EIC_IRQChannelConfig(T0TIMI_IRQChannel, ENABLE);

EIC_IRQChannelPriorityConfig(T0TIMI_IRQChannel, 1);

EIC_IRQConfig(ENABLE);

unfortunetly if does work. The program dont go to interrupt routine. Why?

Should I add something else?

Thank you and best regards.

Alfa.

[ This message was edited by: amoreno on 05-11-2007 18:14 ]

amoreno · ‎2007-11-06

Posted on November 06, 2007 at 13:19

Hello again, It is still not working :-[

I see on registers that timer is running but the interrupt never is served.

By the way, my board is STR711-SK/IAR and software Workbench Quicstard 4.42A (4.42.1.501)

I'd aprreciate your help. I'm newbie in ARMs

Thanks

Alfa

m_tibu · ‎2007-11-16

Posted on November 16, 2007 at 10:30

May I suggest you to start from a working example?

Consider that the only way to see an interrupt working is to put a breakpoint in the interrupt service routine and let go the program.

I post here an example of a IAR Embedded workbech for an STR75x micro.

I should be in the STR7xx directory a similar example, I suggest you to start from that.

However the project could be compiled also for STR711, I think.

Good luck.

Marco

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dipol_84 · ‎2009-08-20

Posted on August 21, 2009 at 07:30

I think that you can add this line;

APB_ClockConfig (APB2, ENABLE, TIM0_Periph);

and can added

EIC_Init();

dipol_84

dipol_84 · ‎2009-08-20

Posted on August 21, 2009 at 07:31

APB_ClockConfig (APB2, ENABLE, TIM0_Periph);