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Agrl's avatar
Agrl
Icon for New Contributor rankNew Contributor
3 years ago

PCIE is not getting detected

After merging the PCie x4 and X8 hard ip. PC is taking more number of reboot to detect the pcie. we are using fpga as a device, the one observation is from PC we are not getting the continous clock....
Wincent_Altera's avatar
Wincent_Altera
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi,


Enabling the continuous clock from the PC should not directly affect the FPGA pins.

However, it is important to ensure that the FPGA is properly configured to receive the continuous clock signal from the PC.


Not sure about your device, so is possible for you to use the GX/GT device, they can support up to 4 HIPs If no ,

back to your question , there is no setting to configure the HIP to support Avalon-ST and Avalon-MM both,

but you can use the Avalon-ST and implement some logic for the control path


Regards.

Wincent_Intel


  • Agrl's avatar
    Agrl
    Icon for New Contributor rankNew Contributor
    3 years ago

    Hi Sir,

    Thank you for your reply. I have 2 questions.

    Q1. my PCIe Device is self powered. In any scenario. If Device is OFF and PC is ON. and PC provides the PCIe Clock continuously will there be any impact on the PCIe EP device(FPGA)? I am using arria 10 GX device .

    Q2. If i check the x8 pcie and x4 pcie as a seperate code. it is working fine. I am using Avalon MM DMA method for both PCIe. If i merge the X8 and X4 pcie. PCie is not getting detected for the first two reboot of PC. What may be the issue?

    Thanks in advance