##
## This file is part of the libsigrokdecode project.
##
-## Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2012-2013 Uwe Hermann <uwe@hermann-uwe.de>
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
self.samplenum = 0
self.bit_start = 0
self.bit_start_old = 0
+ self.bit_end = 0
self.bitcount = 0 # Counter for the DCF77 bits (0..58)
self.dcf77_bitnumber_is_known = 0
def report(self):
pass
+ def putx(self, data):
+ self.put(self.bit_start, self.bit_end, self.out_ann, data)
+
# TODO: Which range to use? Only the 100ms/200ms or full second?
def handle_dcf77_bit(self, bit):
c = self.bitcount
- a = self.out_ann
- ss = es = 0 # FIXME
# Create one annotation for each DCF77 bit (containing the 0/1 value).
# 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.put(ss, es, a, [0, ['%sDCF77 bit %d: %d' % (s, c, bit)]])
+ self.putx([0, ['%sDCF77 bit %d: %d' % (s, c, 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 c == 0:
# Start of minute: DCF bit 0.
if bit == 0:
- self.put(ss, es, a, [0, ['Start of minute (always 0)']])
+ self.putx([0, ['Start of minute (always 0)']])
else:
- self.put(ss, es, a, [0, ['ERROR: Start of minute != 0']])
+ self.putx([0, ['ERROR: Start of minute != 0']])
elif c in range(1, 14 + 1):
# Special bits (civil warnings, weather forecast): DCF77 bits 1-14.
if c == 1:
else:
self.tmp |= (bit << (c - 1))
if c == 14:
- self.put(ss, es, a, [0, ['Special bits: %s' % bin(self.tmp)]])
+ self.putx([0, ['Special bits: %s' % bin(self.tmp)]])
elif c == 15:
s = '' if (bit == 1) else 'not '
- self.put(ss, es, a, [0, ['Call bit is %sset' % s]])
+ self.putx([0, ['Call bit is %sset' % s]])
# TODO: Previously this bit indicated use of the backup antenna.
elif c == 16:
s = '' if (bit == 1) else 'not '
- self.put(ss, es, a, [0, ['Summer time announcement %sactive' % s]])
+ self.putx([0, ['Summer time announcement %sactive' % s]])
elif c == 17:
s = '' if (bit == 1) else 'not '
- self.put(ss, es, a, [0, ['CEST is %sin effect' % s]])
+ self.putx([0, ['CEST is %sin effect' % s]])
elif c == 18:
s = '' if (bit == 1) else 'not '
- self.put(ss, es, a, [0, ['CET is %sin effect' % s]])
+ self.putx([0, ['CET is %sin effect' % s]])
elif c == 19:
s = '' if (bit == 1) else 'not '
- self.put(ss, es, a, [0, ['Leap second announcement %sactive' % s]])
+ self.putx([0, ['Leap second announcement %sactive' % s]])
elif c == 20:
# Start of encoded time: DCF bit 20.
if bit == 1:
- self.put(ss, es, a, [0, ['Start of encoded time (always 1)']])
+ self.putx([0, ['Start of encoded time (always 1)']])
else:
- self.put(ss, es, a,
- [0, ['ERROR: Start of encoded time != 1']])
+ self.putx([0, ['ERROR: Start of encoded time != 1']])
elif c in range(21, 27 + 1):
# Minutes (0-59): DCF77 bits 21-27 (BCD format).
if c == 21:
else:
self.tmp |= (bit << (c - 21))
if c == 27:
- self.put(ss, es, a, [0, ['Minutes: %d' % bcd2int(self.tmp)]])
+ self.putx([0, ['Minutes: %d' % bcd2int(self.tmp)]])
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.put(ss, es, a, [0, ['Minute parity: %s' % s]])
+ self.putx([0, ['Minute parity: %s' % s]])
elif c in range(29, 34 + 1):
# Hours (0-23): DCF77 bits 29-34 (BCD format).
if c == 29:
else:
self.tmp |= (bit << (c - 29))
if c == 34:
- self.put(ss, es, a, [0, ['Hours: %d' % bcd2int(self.tmp)]])
+ self.putx([0, ['Hours: %d' % bcd2int(self.tmp)]])
elif c == 35:
# Even parity over hour bits (29-35): DCF77 bit 35.
self.tmp |= (bit << (c - 29))
parity = bin(self.tmp).count('1')
s = 'OK' if ((parity % 2) == 0) else 'INVALID!'
- self.put(ss, es, a, [0, ['Hour parity: %s' % s]])
+ self.putx([0, ['Hour parity: %s' % s]])
elif c in range(36, 41 + 1):
# Day of month (1-31): DCF77 bits 36-41 (BCD format).
if c == 36:
else:
self.tmp |= (bit << (c - 36))
if c == 41:
- self.put(ss, es, a, [0, ['Day: %d' % bcd2int(self.tmp)]])
+ self.putx([0, ['Day: %d' % bcd2int(self.tmp)]])
elif c in range(42, 44 + 1):
# Day of week (1-7): DCF77 bits 42-44 (BCD format).
# A value of 1 means Monday, 7 means Sunday.
if c == 44:
d = bcd2int(self.tmp)
dn = calendar.day_name[d - 1] # day_name[0] == Monday
- self.put(ss, es, a, [0, ['Day of week: %d (%s)' % (d, dn)]])
+ self.putx([0, ['Day of week: %d (%s)' % (d, dn)]])
elif c in range(45, 49 + 1):
# Month (1-12): DCF77 bits 45-49 (BCD format).
if c == 45:
if c == 49:
m = bcd2int(self.tmp)
mn = calendar.month_name[m] # month_name[1] == January
- self.put(ss, es, a, [0, ['Month: %d (%s)' % (m, mn)]])
+ self.putx([0, ['Month: %d (%s)' % (m, mn)]])
elif c in range(50, 57 + 1):
# Year (0-99): DCF77 bits 50-57 (BCD format).
if c == 50:
else:
self.tmp |= (bit << (c - 50))
if c == 57:
- self.put(ss, es, a, [0, ['Year: %d' % bcd2int(self.tmp)]])
+ self.putx([0, ['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')
s = 'OK' if ((parity % 2) == 0) else 'INVALID!'
- self.put(ss, es, a, [0, ['Date parity: %s' % s]])
+ self.putx([0, ['Date parity: %s' % s]])
else:
raise Exception('Invalid DCF77 bit: %d' % c)
self.oldval = val
continue
+ # Save the sample number where the DCF77 bit ends.
+ self.bit_end = self.samplenum
+
# Calculate the length (in ms) of the current high period.
len_high = self.samplenum - self.bit_start
len_high_ms = int((len_high / self.samplerate) * 1000)
projects / libsigrokdecode.git / commitdiff