Comments (2)
raveslave
commented on May 26, 2024
@AlexandreHoward any updates here?
from genavb_tsn.
AlexandreHoward
commented on May 26, 2024
Hi David,
Indeed the speed for the AVB use cases is forced to 100Mb/s.
The stack itself supports both 100Mb/s and 1Gb/s seamlessly and it detects link speed change automatically.
The 100 Mb/s rate was introduced to protect against specific corner cases : Mainly when the receive side of the endpoint is flooded with a high rate of small best effort packets on the FEC interface which can impact SRP/gPTP packets queued with the best effort ones.
I don't think there will be any plan to support the 1Gb/s rate for AVB use cases, unfortunately, as the chances of SRP/gPTP packets being lost amidst all the traffic on the same queue would be too high.
The compensation values have been updated in the latest version, you can find them in REALTIMEEDGEUG v2.8 (Table 77) if that can help
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Related Issues (8)
- Bridge time synchronization HOT 3
- endpoint_avb build broken for linux_imx8 HOT 3
- Better documentation of build process for iMXRT1170+FreeRTOS HOT 1
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- Integration with MCUXpresso, MCUXpresso VScode extension or other host debug tools HOT 2
- Not able to get clock sync working with iMXRT1170 and LinuxPTP grandmaster. HOT 1
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