Forum Discussion

CHung's avatar
CHung
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

AN881 reference design need to be upgraded for device 1SM21CH.

Hi, ​ The following reference design is based on 1SM21BH device. https://fpgacloud.intel.com/devstore/platform/19.1.0/Pro/an881-pcie-avmm-dma-gen3x16-ddr4-and-hbm2/ ​ We use Stratix 10 MX 1SM21C...
BoonT_Intel's avatar
BoonT_Intel
Icon for Frequent Contributor rankFrequent Contributor
6 years ago

Hi I agree that even driver is not install successful, it still able to detect by the host as unknown device. So now we can rule out the driver issue.

Suggestion:

  1. is it possible to borrow the BHU variant board from field team and test it with original AN881 design using the same linux host? The reason is to rule out is issue is due to variant or the particular host actually unable to detect any FPGA gen3 card.
  2. What is the slot PCIe capability? Have you tried go into the bios and fix the PCIe slot setting to Gen3x16? In some host, it will create some problem to detect when the setting is AUTO.
CHung's avatar
CHung
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Hi,

​

1. We'll try it.

2. After confirmation, the slot PCIe capability is gen3 x16.

We do the experiments on different computers with different CPUs, motherboards, and OS (CentOS 7.0 and Ubuntu 16).

The result is the same.

Besides, we have made sure the PCIe slot works well by changing PCIe cards.

When we plugged-in other PCIe cards like nVidia graphic card,

"lspci" command could show PCIe device.