How I can tune voltage swing to pass USB 3.0 compliance?
I am getting only: PeakToPeakVoltage (5G) (Short Channel) [32241] 63.3 mV, while Pass Limits: [100.0 mV to 1.2000 V]
Thank you.
Best regards
Pavel
Solved! Go to Solution.
OK, got it, this is the magic:
1) Boot linux
2) memtool 0x5b198004=0x3f
3) memtool 0x5b198030=0x03
4) Plug USB fixture and conduct measurements
OK, got it, this is the magic:
1) Boot linux
2) memtool 0x5b198004=0x3f
3) memtool 0x5b198030=0x03
4) Plug USB fixture and conduct measurements
Hi Pavel,
thank you for sharing your solution. We are facing the same issue on our custom board based on imx8QM.
Can I ask you where did you find this information or USB3.0 PHY register map?
Thank you in advance.
Best Regards
Giuseppe Pagano