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CHebl's avatar
CHebl
Icon for New Contributor rankNew Contributor
5 years ago

After PreSICE calibration ATX PLL doesn't lock

Hi all, I'm currently trying to reconfigure the ATX PLL of an Arria 10 device to a different data rate via HPS reconfiguration interface. The IP is configured and fitted for 2400 Mbps operation (1...
CheepinC_altera's avatar
CheepinC_altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,


Regarding your observation of some of the register values change after calibration, for your information, the calibration process is expected to change some internal values. However, I am not sure which specific register values will be changed. Your observation would show that calibration has taken place.


Regarding the unsupported dynamic reconfiguration mode, you may refer to "Unsupported Features" section in the A10 XCVR PHY IP user guide for further details. You may cross check if the specific mode of yours fall under any of these.


Please let me know if there is any concern. Thank you.



Best regards,

Chee Pin