); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY Hi Nigel & Eric, I've just order one of Jan's clocks. He has just got PCB's back in stock. I looked quite carefully and 1PPS is standard. The board has a PCF8563 RTC chip with a 1PPS output that is used by the microprocessor. The signal line has a 2 pin header that has a jumper for internal 1PPS or you can use the header to supply an external 1PPS. The clock has two basic modes of operation, one where the microprocessor just reads the RTC and displays that time, the other (AVR Master Clock) where it counts the 1PPS. While in master mode it updates the RTC to use for reversion in case of power fail (The RTC has battery back-up on the board). It looks like a great little board. The only limitation I can see is that the ADC's are un-buffered R/2R ladder types with fairly high output impedance. I want to drive a small X-Y display so I think I will have to build a buffer amplifier. I'll keep the group up dated.
Robert G8RPI. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: 31 July 2007 23:32 To: [email protected] Subject: Re: [time-nuts] Scope Clock ); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY In a message dated 31/07/2007 23:23:38 GMT Daylight Time, [EMAIL PROTECTED] writes: as ordered will these boards accept 1pps or was yours a special? Eric kg6kqt ----------- Hi Eric Take a look at..... _http://www.dutchtronix.com/ScopeClock.htm_ (http://www.dutchtronix.com/ScopeClock.htm) It looks like the 1PPS is standard. I've got a 12 inch X-Y display doing nothing right now...... and I'm very tempted to have a play with one of these:-) regards Nigel GM8PZR _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -------------------------------------------------------- Genetix Limited - Queensway, New Milton, Hampshire, BH25 5NN Registered in England No. 2660050 www.genetix.com Any opinions expressed in this email are those of the individual and not necessarily Genetix Ltd (Genetix) or any company associated with it. This email and any files transmitted with it are confidential and solely for the use of the intended recipient. If you are not the intended recipient or the person responsible for delivering to the intended recipient, be advised that you have received this email in error and that any use is strictly prohibited. If you have received this email in error please notify Genetix by telephone on +44 (0)1425 624600. The unauthorised use, disclosure, copying or alteration of this message is strictly forbidden. This mail and any attachments have been scanned for viruses prior to leaving Genetix network. Genetix will not be liable for direct, special, indirect or consequential damages as a result of any virus being passed on, or arising from alteration of the contents of this message by a third party. -------------------------------------------------------- _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
