Re: [time-nuts] Automatic switching of a µC osc. to external 10MHz reference as clock?

2012-09-12 Thread David
On Wed, 12 Sep 2012 00:42:48 +0200, "Peter Krengel" wrote: >I'm looking for a possibility to make an automatic switching >between the internal µC oscillator (Atmel µC) to the 10MHz output >of my thunderbolt to use it as a precise µC clock. Has anybody an idea how >to do best without disturbing t

Re: [time-nuts] Automatic switching of a µC osc. to external 10MHz reference as clock?

2012-09-12 Thread Bob Camp
ebo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Chris Albertson Sent: Wednesday, September 12, 2012 11:38 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts]Automatic switching of a µC osc. to external 10MHz reference as clock? On Tue, Sep 11, 2012 at 6:31

Re: [time-nuts] Automatic switching of a µC osc. to external 10MHz reference as clock?

2012-09-12 Thread Chris Albertson
On Tue, Sep 11, 2012 at 6:31 PM, Kevin Rosenberg wrote: > On Sep 11, 2012, at 4:42 PM, Peter Krengel wrote: > > I'm looking for a possibility to make an automatic switching > > between the internal µC oscillator (Atmel µC) to the 10MHz output > > of my thunderbolt to use it as a precise µC clock.

Re: [time-nuts] Automatic switching of a µC osc. to external 10MHz reference as clock?

2012-09-12 Thread Brooke Clarke
Hi Peter: Many of the Microchip PIC uC have a lot of flexibility in this regard. I used it on some of the clocks I made. http://www.prc68.com/I/PRC68COM.shtml#07092006 Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html Peter Krengel wrote: Hello

Re: [time-nuts] Automatic switching of a µC osc. to external 10MHz reference as clock?

2012-09-11 Thread Kevin Rosenberg
On Sep 11, 2012, at 4:42 PM, Peter Krengel wrote: > I'm looking for a possibility to make an automatic switching > between the internal µC oscillator (Atmel µC) to the 10MHz output > of my thunderbolt to use it as a precise µC clock. Has anybody an idea how to > do best > without disturbing the a

Re: [time-nuts] Automatic switching of a µC osc. to external 10MHz reference as clock?

2012-09-11 Thread Hal Murray
krengelda...@gmx.de said: > I'm looking for a possibility to make an automatic switching between the > internal µC oscillator (Atmel µC) to the 10MHz output of my thunderbolt to > use it as a precise µC clock. Has anybody an idea how to do best without > disturbing the accuracy of the ref. signal

[time-nuts] Automatic switching of a µC osc. to external 10MHz reference as clock?

2012-09-11 Thread Peter Krengel
Hello guys, I'm looking for a possibility to make an automatic switching between the internal µC oscillator (Atmel µC) to the 10MHz output of my thunderbolt to use it as a precise µC clock. Has anybody an idea how to do best without disturbing the accuracy of the ref. signal? Thank you in adva