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Altera_Forum's avatar
Altera_Forum
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15 years ago

PCI interrupts

Hi All, We have used SOPC builder to add a conventional PCI component to our SOPC system. The system makes use of the Intan interrupt pin. My question is how do you actually generate a PCI...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi Vern,

if you want avalon components to generate PCI interrupts you have to add the Avalon CRA Port (Avalon Configuration Tab in the PCI Compiler). Then you will see an interrupt input to the PCI core. You can either trigger a PCI interrupt by writing to one of the Avalon to PCI mailboxes or by generating an avalon interrupt. You have to enable the interrupts in the PCI Interrupt Enable Register. The registers are described in the PCI Compiler guide.

Regards,

HJS