Timer interrupt for LED

Hello guys,
My program has radio buttons to control blinking rate of LED. I need to put interrupt (timer) to switch off LED after 10seconds. Lets say SW0 is pressed, LED starts blinking 10 seconds and then switch off. Here I have some problems, when I press SW0 and wait 3 seconds and press SW1 and press back SW0, the LED switches off after 7 seconds. I guess the timer is not reset to count 10 seconds, but saves its previous time.
Can anyone explain what I am doing wrong???
Thank you!
ABSIAS
Solved!
Go to Solution.
Attachments:
LED 4.vi ‏59 KB

duplicate post!
Please don't ask the very same question in more than one thread!
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome

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Setting the time interval for LEDs

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LED time interval test.vi ‏43 KB

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Hi
I want to use GPIO and timer interrupt. I use interrupt controller IP.
my target to get 1ms interrupt using timer and GPIO interrupt.
the problem is initialize timer interrupt second after initialize GPIO interrupt >>>> it works , but GPIO int doesn't work
then I put
XIntc_Enable(&Intc, 0);     // Enable GPIO interrupt high priority
timer interrupt GPIO interrupt work . but sitll there is a problem which is after GPIO interrupt the program hang and never return to main
this is the first post for me , I hope finding helpful replys
thanks
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//************************************ for main **********************************************//
int main()
/*----------------------------------initializations--------------------------------------*/
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           u16 DeviceId, u32 IntrId, u32 IntrMask)
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   Xil_ExceptionInit();
   Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_INT,
           (Xil_ExceptionHandler)INTC_HANDLER, IntcInstancePtr);
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   Xil_ExceptionEnable();
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}

Well Well
Thank you so much stephenm . yes it works now
The error is initialize INTC two times. It should be initialize once and use XIntc_Connect two times. one for GPIO and other for timer.
Thank you for your help.

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