PPS output signal from TWR-LS1021A

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PPS output signal from TWR-LS1021A

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stefanager
Contributor I

I'm successfully running PTPd stack on a TWR-LS1021A board using the IEEE-1588 extensions to the gianfar driver. However, I see no activity at all on the 1588 header (J16). Specifically, I would like to measure the PPS signal. What steps do I need to take to accomplish this?

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Pavel
NXP Employee
NXP Employee

Check RCW on your board. Are these pins assigned to TSEC_1588?

Have a great day,
Pavel Chubakov

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stefanager
Contributor I

Pavel, I would really appreciate if you could take a look at my questions regarding RCW for PTP pins.

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stefanager
Contributor I

Thanks for your response Pavel. I'm using the default RCW (see below) and I don't know how to interpret it or change it. Are there any tools available for viewing and generating RCWs? (I'm not using CodeWarrior.)

Reset Configuration Word (RCW):
       00000000: 0608000a 00000000 00000000 00000000
       00000010: 30000000 00007900 e0025a00 21046000
       00000020: 00000000 00000000 00000000 20000000
       00000030: 00080000 481b7340 00000000 00000000

/Stefan

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