Hello Again Everyone,
I was wondering if anyone besides Chris Howard has posted what they've done with the code and this project.
I've looked at what's on github - and there's been some posts in this thread by those that claim they have WWVB working.
The AM code for DCF77 is a little easier to deal with since the amplitude modulation is only 0.2ms for a 1 and 0.1ms for a 0 - and then at the minute mark there is no modulation.
For WWVB, we have 0.2ms, 0.5ms, and 0.8ms for 0, 1, and Marker, respectively.
I have some code posted on github - but right now it's just mostly debug stuff and what I've done thus far to follow what's been done on this project - so I'm not sure it's of any real use at the moment.
I've put a lot of printf's in to see what's going on and to try and understand - so, maybe that's useful to someone that's coming up to speed on this.
I haven't found any other approaches yet for WWVB even though some said they would post what they did to make WWVB work.
I'd like to do the conversion so to speak of what's been done in the original code in this thread before going down another path - and by reading this thread I thought some had done that already.
FWIW - I forked the code and what I've done thus far is here in case anyone wants to take a look:
https://github.com/jwestmoreland/Teensy-DCF77
Again, it's in debug mode and not sure it's useful unless someone wants to use it as a learning tool or a starting point for the same approach done in this thread originally to WWVB. There's a lot of printf stuff and #defines for debug that
could be handy I guess.
Thanks In Advance for those that have WWVB working using the DCF77 approach and making it available.
73's,
John
AJ6BC