Re: [Linuxptp-users] Synchronization fault with stmmac

[Richard C. <ric...@gm...>]

On Wed, Mar 19, 2014 at 09:54:00AM +0100, Mohamed Belaouad wrote:

> From the first test I did (running ptp4l to get the PC time then
> stopping it), the board ptp time seems to run slower than the PC
> time. While 5 minutes elapsed on the PC, 2/3min only do on the
> board.

You can easily test the clock speed like this.

    testptp -g
    sleep 60
    testptp -g

Then, see if 60 seconds elapsed.

Thanks,
Richard