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Altera_Forum's avatar
Altera_Forum
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18 years ago

PCI Express SOPC flow hardware ready example with README

When I tried PCI E SOPC flow for the first time, I got stuck a little bit. So I put some tips for the SOPC flow in the README file. Hope the combination of README and example will help someone g...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

btesar,

Your PC hanging When you uninstall PCIE driver. This case was described in "MegaCore IP Library Release Notes and Errata". It said "When the host programs the PMCSR register at address 0x1f to the D3 state, Hard IP endpoint variants created in SOPC Builder might hang while performing the power management message handshaking protocol with the root port."

The solution is to set test_in[7] = 1 to disable all low state power negotiations. And this was fixed in version 10.1 of the PCI Express MegaCore function.