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Altera_Forum
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14 years ago

Problems with SGDMA through PCIe in several motherboards

Hi All, We have finalized a project for high speed video transfer. It applies a PCI Express Gen1 4x interface between the digital HD video input and central RAM of an x86 based computer. ...
Altera_Forum's avatar
Altera_Forum
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13 years ago

Hi Aphraton,

The design was tried on the C IV GX dev board also with the same results.

It utilized two pipline bridges and totally 10 PIOs. The SGDMA was fed via a special self-made SOPC Builder/Qsys block.

The whole design was rebuilt in the Quartus II v12.0 when it was released. Surprisingly it was working very well so the issue has been solved. I would be interested what was changed in that Quartus version...

Regards,

Istvan