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Valued Contributor III
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Error when using x1 PCIe in SOPC

Hi,  

I instantiate PCIe core in SOPC following AN532 http://www.altera.com/literature/an/an532.pdf which is using x4 PCIe. 

But I configure for my CycloneIV board which has only 1 lane. 

I have lots of compilation errors due to some ports are not connected properly. The errors point to SERDES module. 

 

I checked and found that Although the PCIe wizard configures x1 PCIe; but the Transceiver wizard shows that it is configured for x4 PCIe 

 

Any one has similar problem? Thanks 

 

Jeff
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Valued Contributor III
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--- Quote Start ---  

Hi,  

I instantiate PCIe core in SOPC following AN532 http://www.altera.com/literature/an/an532.pdf which is using x4 PCIe. 

But I configure for my CycloneIV board which has only 1 lane. 

I have lots of compilation errors due to some ports are not connected properly. The errors point to SERDES module. 

 

I checked and found that Although the PCIe wizard configures x1 PCIe; but the Transceiver wizard shows that it is configured for x4 PCIe 

 

Any one has similar problem? Thanks 

 

Jeff 

--- Quote End ---  

 

 

I think there's a bug with SOPC, it can't propagate the setting properly. I might have configured it wrong before. 

I deleted the module, start again, it's ok now.
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