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3,523 Views
Registered: ‎01-05-2010

Interrupts from a custom IP

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Hi there :-)

 

I have connected an external peripheral to microblaze through PLB bus.

I have a signal from the peripheral which is supposed to act as interrupt.

 

Should I still use XPS INTC?

 

If not,could you please let me know how to do so?

 

Thank you and regards,

anand :-)

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Xilinx Employee
Xilinx Employee
4,424 Views
Registered: ‎08-02-2007

Hi,

 

If you have multiple interrupts coming from different peripherals you need a Interrupt controller.

 

if you have a single interrupt coming from a single peripheral you need not have a interrupt controller.

 

Check page number 24 of http://www.xilinx.com/support/documentation/application_notes/xapp778.pdf

 

Thnx

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Explorer
Explorer
3,519 Views
Registered: ‎03-04-2010

I don't have a clue about the microblaze but I think it might be the same as with the ppc. So if you've just one interrupt source, you don't need an interrupt controller. Otherwise you need the interrupt controller to manage several interrupt sources and set priorities, etc.

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Xilinx Employee
Xilinx Employee
4,425 Views
Registered: ‎08-02-2007

Hi,

 

If you have multiple interrupts coming from different peripherals you need a Interrupt controller.

 

if you have a single interrupt coming from a single peripheral you need not have a interrupt controller.

 

Check page number 24 of http://www.xilinx.com/support/documentation/application_notes/xapp778.pdf

 

Thnx

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3,469 Views
Registered: ‎01-05-2010

Hi 'hem_8030' :-)

 

I found the document you suggested pretty useful :-)

 

Thank you :-)

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