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Altera_Forum
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14 years ago

Integrating a custom component in SOPC [+IRQ]

Hello i made a custom component and integrated it on SOPC, my problem is the IRQ signal... i am using Linux in my NIOS2 and i need to make a device driver to control my custom component, however i h...
Altera_Forum's avatar
Altera_Forum
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14 years ago

This is the read signal, and I'm using the nomenclature defined by Altera in the sopc manual (http://www.altera.com/literature/ug/ug_sopc_builder.pdf) (page 6-4). The only exception is the signal ConfigReadData which is connected to avs_Conf_ReadData outside the process.

Yes you need to keep IRQ on until the ISR routine treats the interrupt and clears it. With this architecture the IRQ signal will stay to 1 until the StatusRegister vector is cleared by software.