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Altera_Forum's avatar
Altera_Forum
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19 years ago

Interrupt problem

Hi We are developing our own board. We use interrupts and DMA to transfer data between FPGA and linux kernel in Nios. We get an interrupt when data is available in the FPGA FIFO. Then we s...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

heing,

sorry, I have never used the altera's DMA core nor the DMA driver.

I always use custom DMA. So I can't help you on this.

Maybe you can check the Microtronix's DMA driver in more details.

And cross check with the DMA driver of other arch.

Try register irq yourself, and bypass the DMA driver.

Hippo