PowerQUICC ProcessorsのトピックRe: PRBS on MAC layer

PRBS on MAC layer

hemwant — Fri, 17 Feb 2023 07:10:47 GMT

I am having P5040ds processor and having a marvel switch on my board through MAC-MAC SGMII connection. We are having some issue in communication between processor and switch.

The processor is configured on 1G fixed link SGMII mode and same setting is done on switch.

To debug the issue, we need to run PRBS on processor fm1-gb0 port, kindly provide related documentation / registers to do the same.

Also Is there any procedure to enable remote loopback on fm1-gb0 MAC?

Re: PRBS on MAC layer

yipingwang — Tue, 21 Feb 2023 05:32:56 GMT

P5040 does not have a built in PRBS generation and checking. but customer can use an external loop card/board (connecting the RX to TX) and generate any test sequence (including a test that would be similar/same as pseudorandom binary sequence) and check it in the test SW.

Re: PRBS on MAC layer

rammurmu — Thu, 23 Mar 2023 04:51:02 GMT

Hello,

1. Is there support for remote MAC loopback for dTSEC ?

2. In the DPAARM , it is mentioned that "Carrier extend symbols in full duplex mode are not supported", does it mean that Carrier extend symbol is supported in half duplex mode?

3. No register could be found in RM as well as DPAARM for carrier extension. Do let us know the register configuration to enable/disable the carrier extend symbol.

Regards

Ram

Re: PRBS on MAC layer

rammurmu — Wed, 29 Mar 2023 09:34:02 GMT

Any update on this query would be appreciated.

Thanks

Re: PRBS on MAC layer

yipingwang — Thu, 30 Mar 2023 00:45:42 GMT

Hello rammurmu,

Would you please create a new thread to discuss your issues.

Thanks,

Yiping