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rene0 / dcf77pi

Yet another DCF77 decoder. This one is intended for the Raspberry Pi platform but might work on other devices using GPIO pins too.
BSD 2-Clause "Simplified" License
18 stars 6 forks source link

date/time off when minute is 1 bit too long #18

Closed rene0 closed 7 years ago

rene0 commented 7 years ago

If the minute is 1 bit too long, the "long" light switches on but if the parity bits and BCD checks are fine the date/time can still be wrong (although the date/time fields are yellow).

rene0 commented 7 years ago

Example (synthesized): 00000101001101100100101100011100010010010111111000101010001a59986c2.0027 summer 2015-03-29 Sun 11:46 010001011100100001001111000101000100100101111110000110010011a59964c2.0047 summer 2026-03-29 Sun 11:47 <-- 2026 Minute too long Year value jump