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Altera_Forum
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17 years ago

Altera PCI Express Development Kit: Linux DMA Driver

Hi, I am a newbie to FPGA design and implementation. While installing the PCI express board on LINUX machine, I don't see Demo application driver for DMA read and write for LINUX (Manual talk...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hi,

maybe someone can help me here. I use an adapted version of the Linux DMA Driver. I succeeded in reading and writing BAR0, but I do not get the legacy interrupts to work. I work with an SOPC system and a PIO with level interrupts, the interrupt works fine with a NIOS but does not reach my PCIe root board.

How can I check if INTA is asserted or cleared? DariusTDog mentioned he can see that INTA is asserted... how?

Thx