Date: Sun, 25 Aug 2019 15:14:37 +0900 (JST) From: Mori Hiroki <yamori813@yahoo.co.jp> To: "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org> Subject: Re: NTP ST1 server in my house Message-ID: <859018402.326185.1566713677884.JavaMail.yahoo@jws702102.mail.ssk.yahoo.co.jp> In-Reply-To: <41686588.6174961.1566301967064.JavaMail.yahoo@jws705108.mail.ssk.yahoo.co.jp> References: <41686588.6174961.1566301967064.JavaMail.yahoo.ref@jws705108.mail.ssk.yahoo.co.jp> <41686588.6174961.1566301967064.JavaMail.yahoo@jws705108.mail.ssk.yahoo.co.jp>
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Hi ST1 GPS jitter is always 15us. This cause of CPU clock 320MHz. Offset is under 10us. I think more good=C2=A0accuracy=C2=A0by pps manipulate by FPGA.=C2=A0 Who is makeing this ? Hiroki Mori ----- Original Message ----- > From: Mori Hiroki <yamori813@yahoo.co.jp> > To: "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org> > Cc:=20 > Date: 2019/8/20, Tue 20:52 > Subject: NTP ST1 server in my house >=20 > Hi >=20 > I have four NTP ST1 server in my house. >=20 > All server use RT3050. >=20 > Two is GPS and Two is radio signal JJY. >=20 > GPS is u-blox and Taiyoyuden(chip is Mediatek). >=20 > This is ST2 ntpq. >=20 > =C2=A0 =C2=A0 =C2=A0remote =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 refid=C2=A0= =C2=A0 =C2=A0 st t when poll reach =C2=A0 delay =C2=A0 offset=C2=A0 jitter > =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D > *10.0.1.22 =C2=A0 =C2=A0 =C2=A0 .GPS.=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 1 u=C2=A0 637 1024=C2=A0 377=C2=A0 =C2=A0 0.961=C2=A0 =C2=A0 0.317 = =C2=A0 0.940 > +10.0.1.20 =C2=A0 =C2=A0 =C2=A0 .GPS.=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 1 u=C2=A0 688 1024=C2=A0 377=C2=A0 =C2=A0 1.013=C2=A0 =C2=A0 0.348 = =C2=A0 0.956 > -10.0.1.19 =C2=A0 =C2=A0 =C2=A0 .JJY.=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 = =C2=A0 1 u=C2=A0 709 1024=C2=A0 377=C2=A0 =C2=A0 0.968=C2=A0 =C2=A0 4.092 = =C2=A0 0.995 > +10.0.1.8=C2=A0 =C2=A0 =C2=A0 =C2=A0 .JJY.=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2= =A0 =C2=A0 1 u=C2=A0 686 1024=C2=A0 377=C2=A0 =C2=A0 0.969=C2=A0 =C2=A0 0.2= 33 =C2=A0 0.716 >=20 > GPS is gpiopps on mediatek gpio v1. >=20 > http://dmesgd.nycbug.org/index.cgi?do=3Dview&id=3D5092 >=20 >=20 > About over one year no trouble. >=20 > Hiroki Mori >=20 > _______________________________________________ > freebsd-mips@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-mips > To unsubscribe, send any mail to=20 > "freebsd-mips-unsubscribe@freebsd.org" >=20
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