On Tue, Sep 10, 2013 at 01:02:34PM -0700, Gary E. Miller wrote:
>
> Sure PPS over a local UART is 10 to 100 times better, but often PPS
> over USB is your best second choice. As serial ports become extinct
> it may become your best choice.
Ok. But, please, add a note about it into PPS documentat
Yo Rodolfo!
On Tue, 10 Sep 2013 09:31:05 +0200
Rodolfo Giometti wrote:
> I have nothing against with this solution but consider that reporting
> a PPS signal through USB bus may add unknown delays that may vanish
> clock stability... as far as I know you should not use USB serial port
> with PPS
Hi.
At the bottom of the description of the patch set, i warn about the
latencies and jitter.
I did "real" test with a pps generated by a workstation (i haven't
tested with a precise pps yet), so the the jitter don't mean anything.
But the magnitude of difference between uart and usb pps is
On Mon, Sep 09, 2013 at 06:01:15PM +0200, Paul Chavent wrote:
> Hi.
>
> This series enable the PPS reporting for USB serial devices.
I have nothing against with this solution but consider that reporting
a PPS signal through USB bus may add unknown delays that may vanish
clock stability... as far
Hi.
This series enable the PPS reporting for USB serial devices.
Patch 01 : change the interface of handle_dcd_change for usb serial in
order to avoid duplicating code when calling this function and to be
closer of the uart handle_dcd_change interface.
Patch 02 : this patch depends on the previo
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