[time-freq] Assembled RefLock II availability?
Steven Bible n7hpr at tapr.orgFri Mar 17 01:46:21 UTC 2006
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Hello Randy, I am still working on it. Sorry for the delay. What I've learned is that even if we take the existing Reflock II kit and assemble it, there is still much you need to do to get it up and running. For example, the recent questions on the list on how to configure the Reflock II. You configure the Reflock II by jumpers and customize by programming the CPLD. Presently, the jumpers are solder on zero-ohm resistors that are 0603 size. The reason why I designed the solder on jumpers is to make a solid connection given that your Reflock II is to be rugged and reliable. I was worried that jumpers could become intermitent over time. Then there's the programming of the CPLD - and programming depends on what you want to do with the Reflock II. And it requires a special programmer - I've created a low-cost kit or you can buy one from http://www.minford.ca/ (also look on eBay and search for Altera ByteBlaster). What I have decided to do is to learn from the Reflock II's that are out there. So far everyone is happy (except for those that want an assembled one :-). I think I'll go ahead and add the jumpers and preprogram the CPLD with the GPS 1PPS (as this seems to be the most often used mode). Then the assembled units will be easier for you to integrate. I am always open for suggestions and ideas. 73, - Steve, N7HPR (n7hpr at tapr.org) -----Original Message----- From: time-freq-bounces at lists.tapr.org [mailto:time-freq-bounces at lists.tapr.org]On Behalf Of Randy Sent: Thursday, March 16, 2006 9:54 AM To: 'TAPR time and frequency projects' Subject: [time-freq] Assembled RefLock II availability? Luis: While on the subject of RefLock II, do you know when the assembled version will be available? Last I heard it was in the works and should be available soon. Any idea when? de Randy, W7HR ****************************************************** -----Original Message----- From: time-freq-bounces at lists.tapr.org [mailto:time-freq-bounces at lists.tapr.org] On Behalf Of Luis Cupido Sent: Thursday, March 16, 2006 8:25 AM To: time-freq at lists.tapr.org Subject: Re: [time-freq] RefLock II configuration Hi Michael, The file "r2_enhpps_30_1.txt" on the configurations zip folder has it all. I agree it is in a "very compact style" but in fact should have it all. Take a look, and if there are specific questions, let me know (do it to the list please) I'll be glad to reply. Luis Cupido. CT1DMK P.S. note that the N numbers on the PCB have different meaning for each "pof" configuration file. Be sure to read the " *.pin " for the description of where is what. The " f_conf " configures the lock point (that is the multiple of ). for 100. 000 000 MHz use f_conf= 0,0
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