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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...
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Altera_Forum
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16 years ago

Hi

I am using x4 Arria GX Dev kit on Intel Core2Duo x86 64.

My probe function gives me :

......

Enabled MSI interrupting.

Using a 64-bit DMA mask.

IRQ pin# 0 (0=none, 1=INTA#...4=INTD#).

IRQ line# 0.

Could not request IRQ# 251, error -38

altpciechdma: probe of 0000:01:00.0 failed with error -38

....

How do I have to specify the BAR's?

static const unsigned long bar_min_len[APE_BAR_NUM] =

{ 32768, 0, 256, 0, 32768, 0 };

I dont understand,if the WinDriver doesnt let me to take the interrupt line,

which I have already uninstalled,

or I've incorrectly specified the BAR's?