X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fdcf77%2Fpd.py;h=a31c313cb8f020a890d63c03911d682d009b810a;hb=8a01468302ed915f6efd6933836c27e60a019100;hp=396945c93b6096554f505c28ccb6d12e7b9dac19;hpb=3e9b87f7817506371149b0dba5848c2519285c1a;p=libsigrokdecode.git diff --git a/decoders/dcf77/pd.py b/decoders/dcf77/pd.py index 396945c..a31c313 100644 --- a/decoders/dcf77/pd.py +++ b/decoders/dcf77/pd.py @@ -70,6 +70,7 @@ class Decoder(srd.Decoder): self.oldval = None self.samplenum = 0 self.ss_bit = self.ss_bit_old = self.es_bit = self.ss_block = 0 + self.datebits = [] self.bitcount = 0 # Counter for the DCF77 bits (0..58) self.dcf77_bitnumber_is_known = 0 @@ -97,21 +98,27 @@ class Decoder(srd.Decoder): # Use 'Unknown DCF77 bit x: val' if we're not sure yet which of the # 0..58 bits it is (because we haven't seen a 'new minute' marker yet). # Otherwise, use 'DCF77 bit x: val'. - s = '' if self.dcf77_bitnumber_is_known else 'Unknown ' - self.putx([18, ['%sDCF77 bit %d: %d' % (s, c, bit)]]) + s = 'B' if self.dcf77_bitnumber_is_known else 'Unknown b' + ann = 17 if self.dcf77_bitnumber_is_known else 18 + self.putx([ann, ['%sit %d: %d' % (s, c, bit), '%d' % bit]]) # If we're not sure yet which of the 0..58 DCF77 bits we have, return. # We don't want to decode bogus data. if not self.dcf77_bitnumber_is_known: return + # Collect bits 36-58, we'll need them for a parity check later. + if c in range(36, 58 + 1): + self.datebits.append(bit) + # Output specific "decoded" annotations for the respective DCF77 bits. if c == 0: # Start of minute: DCF bit 0. if bit == 0: - self.putx([0, ['Start of minute (always 0)']]) + self.putx([0, ['Start of minute (always 0)', + 'Start of minute', 'SoM']]) else: - self.putx([19, ['Start of minute != 0']]) + self.putx([19, ['Start of minute != 0', 'SoM != 0']]) elif c in range(1, 14 + 1): # Special bits (civil warnings, weather forecast): DCF77 bits 1-14. if c == 1: @@ -120,29 +127,39 @@ class Decoder(srd.Decoder): else: self.tmp |= (bit << (c - 1)) if c == 14: - self.putb([1, ['Special bits: %s' % bin(self.tmp)]]) + s = bin(self.tmp)[2:].zfill(14) + self.putb([1, ['Special bits: %s' % s, 'SB: %s' % s]]) elif c == 15: s = '' if (bit == 1) else 'not ' - self.putx([2, ['Call bit is %sset' % s]]) + self.putx([2, ['Call bit: %sset' % s, 'CB: %sset' % s]]) # TODO: Previously this bit indicated use of the backup antenna. elif c == 16: s = '' if (bit == 1) else 'not ' - self.putx([3, ['Summer time announcement %sactive' % s]]) + x = 'yes' if (bit == 1) else 'no' + self.putx([3, ['Summer time announcement: %sactive' % s, + 'Summer time: %sactive' % s, + 'Summer time: %s' % x, 'ST: %s' % x]]) elif c == 17: s = '' if (bit == 1) else 'not ' - self.putx([4, ['CEST is %sin effect' % s]]) + x = 'yes' if (bit == 1) else 'no' + self.putx([4, ['CEST: %sin effect' % s, 'CEST: %s' % x]]) elif c == 18: s = '' if (bit == 1) else 'not ' - self.putx([5, ['CET is %sin effect' % s]]) + x = 'yes' if (bit == 1) else 'no' + self.putx([5, ['CET: %sin effect' % s, 'CET: %s' % x]]) elif c == 19: s = '' if (bit == 1) else 'not ' - self.putx([6, ['Leap second announcement %sactive' % s]]) + x = 'yes' if (bit == 1) else 'no' + self.putx([6, ['Leap second announcement: %sactive' % s, + 'Leap second: %sactive' % s, + 'Leap second: %s' % x, 'LS: %s' % x]]) elif c == 20: # Start of encoded time: DCF bit 20. if bit == 1: - self.putx([7, ['Start of encoded time (always 1)']]) + self.putx([7, ['Start of encoded time (always 1)', + 'Start of encoded time', 'SoeT']]) else: - self.putx([19, ['ERROR: Start of encoded time != 1']]) + self.putx([19, ['Start of encoded time != 1', 'SoeT != 1']]) elif c in range(21, 27 + 1): # Minutes (0-59): DCF77 bits 21-27 (BCD format). if c == 21: @@ -151,13 +168,14 @@ class Decoder(srd.Decoder): else: self.tmp |= (bit << (c - 21)) if c == 27: - self.putb([8, ['Minutes: %d' % bcd2int(self.tmp)]]) + m = bcd2int(self.tmp) + self.putb([8, ['Minutes: %d' % m, 'Min: %d' % m]]) elif c == 28: # Even parity over minute bits (21-28): DCF77 bit 28. self.tmp |= (bit << (c - 21)) parity = bin(self.tmp).count('1') s = 'OK' if ((parity % 2) == 0) else 'INVALID!' - self.putx([9, ['Minute parity: %s' % s]]) + self.putx([9, ['Minute parity: %s' % s, 'Min parity: %s' % s]]) elif c in range(29, 34 + 1): # Hours (0-23): DCF77 bits 29-34 (BCD format). if c == 29: @@ -193,7 +211,8 @@ class Decoder(srd.Decoder): if c == 44: d = bcd2int(self.tmp) dn = calendar.day_name[d - 1] # day_name[0] == Monday - self.putb([13, ['Day of week: %d (%s)' % (d, dn)]]) + self.putb([13, ['Day of week: %d (%s)' % (d, dn), + 'DoW: %d (%s)' % (d, dn)]]) elif c in range(45, 49 + 1): # Month (1-12): DCF77 bits 45-49 (BCD format). if c == 45: @@ -204,7 +223,8 @@ class Decoder(srd.Decoder): if c == 49: m = bcd2int(self.tmp) mn = calendar.month_name[m] # month_name[1] == January - self.putx([14, ['Month: %d (%s)' % (m, mn)]]) + self.putx([14, ['Month: %d (%s)' % (m, mn), + 'Mon: %d (%s)' % (m, mn)]]) elif c in range(50, 57 + 1): # Year (0-99): DCF77 bits 50-57 (BCD format). if c == 50: @@ -216,10 +236,10 @@ class Decoder(srd.Decoder): self.putb([15, ['Year: %d' % bcd2int(self.tmp)]]) elif c == 58: # Even parity over date bits (36-58): DCF77 bit 58. - self.tmp |= (bit << (c - 50)) - parity = bin(self.tmp).count('1') + parity = self.datebits.count(1) s = 'OK' if ((parity % 2) == 0) else 'INVALID!' - self.putx([16, ['Date parity: %s' % s]]) + self.putx([16, ['Date parity: %s' % s, 'DP: %s' %s]]) + self.datebits = [] else: raise Exception('Invalid DCF77 bit: %d' % c)