import sigrokdecode as srd
-def decode_bit(edges):
- # Datasheet says long pulse is 3 times short pulse.
- lmin = 2 # long min multiplier
- lmax = 5 # long max multiplier
- eqmin = 0.5 # equal min multiplier
- eqmax = 1.5 # equal max multiplier
- if ( # 0 -___-___
- (edges[1] >= edges[0] * lmin and edges[1] <= edges[0] * lmax) and
- (edges[2] >= edges[0] * eqmin and edges[2] <= edges[0] * eqmax) and
- (edges[3] >= edges[0] * lmin and edges[3] <= edges[0] * lmax)):
- return '0'
- elif ( # 1 ---_---_
- (edges[0] >= edges[1] * lmin and edges[0] <= edges[1] * lmax) and
- (edges[0] >= edges[2] * eqmin and edges[0] <= edges[2] * eqmax) and
- (edges[0] >= edges[3] * lmin and edges[0] <= edges[3] * lmax)):
- return '1'
- elif ( # float ---_-___
- (edges[1] >= edges[0] * lmin and edges[1] <= edges[0] * lmax) and
- (edges[2] >= edges[0] * lmin and edges[2] <= edges[0]* lmax) and
- (edges[3] >= edges[0] * eqmin and edges[3] <= edges[0] * eqmax)):
- return 'f'
- else:
- return 'U'
-
-def pinlabels(bit_count):
- if bit_count <= 6:
- return 'A%i' % (bit_count - 1)
- else:
- return 'A%i/D%i' % (bit_count - 1, 12 - bit_count)
+bitvals = ('0', '1', 'f', 'U')
+
+def decode_bit(edges, pulses_per_bit):
+ if pulses_per_bit == 2:
+ # Datasheet says long pulse is 3 times short pulse.
+ lmin = 1.5 # long min multiplier
+ lmax = 5 # long max multiplier
+ if (edges[1] >= edges[0] * lmin and edges[1] <= edges[0] * lmax): # 0 -___
+ return '0'
+ elif (edges[0] >= edges[1] * lmin and edges[0] <= edges[1] * lmax): # 1 ---_
+ return '1'
+ # No float type for this line encoding
+ else:
+ return 'U'
+
+ if pulses_per_bit == 4:
+ # Datasheet says long pulse is 3 times short pulse.
+ lmin = 2 # long min multiplier
+ lmax = 5 # long max multiplier
+ eqmin = 0.5 # equal min multiplier
+ eqmax = 1.5 # equal max multiplier
+ if ( # 0 -___-___
+ (edges[1] >= edges[0] * lmin and edges[1] <= edges[0] * lmax) and
+ (edges[2] >= edges[0] * eqmin and edges[2] <= edges[0] * eqmax) and
+ (edges[3] >= edges[0] * lmin and edges[3] <= edges[0] * lmax)):
+ return '0'
+ elif ( # 1 ---_---_
+ (edges[0] >= edges[1] * lmin and edges[0] <= edges[1] * lmax) and
+ (edges[0] >= edges[2] * eqmin and edges[0] <= edges[2] * eqmax) and
+ (edges[0] >= edges[3] * lmin and edges[0] <= edges[3] * lmax)):
+ return '1'
+ elif ( # float ---_-___
+ (edges[1] >= edges[0] * lmin and edges[1] <= edges[0] * lmax) and
+ (edges[2] >= edges[0] * lmin and edges[2] <= edges[0]* lmax) and
+ (edges[3] >= edges[0] * eqmin and edges[3] <= edges[0] * eqmax)):
+ return 'f'
+ else:
+ return 'U'
+
+def pinlabels(bit_count, packet_bit_count):
+ if packet_bit_count == 12:
+ if bit_count <= 6:
+ return 'A%i' % (bit_count - 1)
+ else:
+ return 'A%i/D%i' % (bit_count - 1, 12 - bit_count)
+
+ if packet_bit_count == 24:
+ if bit_count <= 20:
+ return 'A%i' % (bit_count - 1)
+ else:
+ return 'D%i' % (bit_count - 21)
def decode_model(model, bits):
if model == 'maplin_l95ar':
- address = 'Addr' # Address pins A0 to A5
+ address = 'Addr' # Address bits A0 to A5
for i in range(0, 6):
- address = address + ' %i:' % (i + 1) + \
- ('on' if bits[i][0] == '0' else 'off')
+ address += ' %i:' % (i + 1) + ('on' if bits[i][0] == '0' else 'off')
button = 'Button'
- # Button pins A6/D5 to A11/D0
+ # Button bits A6/D5 to A11/D0
if bits[6][0] == '0' and bits[11][0] == '0':
- button = button + ' A ON/OFF'
+ button += ' A ON/OFF'
elif bits[7][0] == '0' and bits[11][0] == '0':
- button = button + ' B ON/OFF'
+ button += ' B ON/OFF'
elif bits[9][0] == '0' and bits[11][0] == '0':
- button = button + ' C ON/OFF'
+ button += ' C ON/OFF'
elif bits[8][0] == '0' and bits[11][0] == '0':
- button = button + ' D ON/OFF'
+ button += ' D ON/OFF'
else:
- button = button + ' Unknown'
- return ['%s' % address, bits[0][1], bits[5][2], \
- '%s' % button, bits[6][1], bits[11][2]]
+ button += ' Unknown'
+ return [address, bits[0][1], bits[5][2], \
+ button, bits[6][1], bits[11][2]]
+
+ if model == 'xx1527':
+ addr = 0
+ addr_valid = 1
+ for i in range(0, 20):
+ if bits[i][0] != 'U':
+ addr += int(bits[i][0]) * 2 ** i
+ else:
+ addr_valid = 0
+
+ if addr_valid == 1:
+ address = 'Address 0x%X %X %X' % (addr & 0xFF, (addr >> 8) & 0xFF, addr >> 16)
+ else:
+ address = 'Invalid address as not all bits are 0 or 1'
+
+ output = ' K0 = ' + bits[20][0] + ','
+ output += ' K1 = ' + bits[21][0] + ','
+ output += ' K2 = ' + bits[22][0] + ','
+ output += ' K3 = ' + bits[23][0]
+ return [address, bits[0][1], bits[19][2], \
+ output, bits[20][1], bits[23][2]]
class Decoder(srd.Decoder):
api_version = 3
id = 'rc_encode'
name = 'RC encode'
longname = 'Remote control encoder'
- desc = 'PT2262/HX2262/SC5262 remote control encoder protocol.'
+ desc = 'PT22x2/HX22x2/SC52x2 and xx1527 remote control encoder protocol.'
license = 'gplv2+'
inputs = ['logic']
outputs = []
+ tags = ['IC', 'IR']
channels = (
{'id': 'data', 'name': 'Data', 'desc': 'Data line'},
)
annotations = (
- ('bits', 'Bits'),
- ('pins', 'Pins'),
- ('remote', 'Remote'),
+ ('bit-0', 'Bit 0'),
+ ('bit-1', 'Bit 1'),
+ ('bit-f', 'Bit f'),
+ ('bit-U', 'Bit U'),
+ ('bit-sync', 'Bit sync'),
+ ('pin', 'Pin'),
+ ('code-word-addr', 'Code word address'),
+ ('code-word-data', 'Code word data'),
)
annotation_rows = (
- ('bits', 'Bits', (0,)),
- ('pins', 'Pins', (1,)),
- ('remote', 'Remote', (2,)),
+ ('bits', 'Bits', (0, 1, 2, 3, 4)),
+ ('pins', 'Pins', (5,)),
+ ('code-words', 'Code words', (6, 7)),
)
options = (
- {'id': 'remote', 'desc': 'Remote', 'default': 'none',
- 'values': ('none', 'maplin_l95ar')},
+ {'id': 'linecoding', 'desc': 'Encoding', 'default': 'SC52x2/HX22x2', 'values': ('SC52x2/HX22x2', 'xx1527')},
+ {'id': 'remote', 'desc': 'Remote', 'default': 'none', 'values': ('none', 'maplin_l95ar')},
)
def __init__(self):
self.bits = []
self.labels = []
self.bit_count = 0
- self.bit_first = None
- self.bit_last = None
+ self.ss = None
+ self.es = None
self.state = 'IDLE'
def start(self):
self.out_ann = self.register(srd.OUTPUT_ANN)
self.model = self.options['remote']
+ if self.options['linecoding'] == 'xx1527':
+ self.pulses_per_bit = 2
+ self.packet_bits = 24
+ self.model = 'xx1527'
+ else:
+ self.pulses_per_bit = 4 # Each bit is repeated
+ self.packet_bits = 12
+
+ def putx(self, data):
+ self.put(self.ss, self.es, self.out_ann, data)
def decode(self):
while True:
if not self.samplenumber_last: # Set counters to start of signal.
self.samplenumber_last = self.samplenum
- self.bit_first = self.samplenum
+ self.ss = self.samplenum
continue
- if self.bit_count < 12: # Decode A0 to A11.
+ if self.bit_count < self.packet_bits: # Decode A0 to A11 / A23.
self.bit_count += 1
- for i in range(0, 4): # Get four pulses for each bit.
+ for i in range(0, self.pulses_per_bit):
if i > 0:
- pin = self.wait({0: 'e'}) # Get next 3 edges.
+ pin = self.wait({0: 'e'}) # Get next edges if we need more.
samples = self.samplenum - self.samplenumber_last
self.pulses.append(samples) # Save the pulse width.
self.samplenumber_last = self.samplenum
- self.bit_last = self.samplenum
- self.bits.append([decode_bit(self.pulses), self.bit_first,
- self.bit_last]) # Save states and times.
- self.put(self.bit_first, self.bit_last, self.out_ann,
- [0, [decode_bit(self.pulses)]]) # Write decoded bit.
- self.put(self.bit_first, self.bit_last, self.out_ann,
- [1, [pinlabels(self.bit_count)]]) # Write pin labels.
+ self.es = self.samplenum
+ self.bits.append([decode_bit(self.pulses, self.pulses_per_bit), self.ss,
+ self.es]) # Save states and times.
+ idx = bitvals.index(decode_bit(self.pulses, self.pulses_per_bit))
+ self.putx([idx, [decode_bit(self.pulses, self.pulses_per_bit)]]) # Write decoded bit.
+ self.putx([5, [pinlabels(self.bit_count, self.packet_bits)]]) # Write pin labels.
self.pulses = []
- self.bit_first = self.samplenum
+ self.ss = self.samplenum
else:
if self.model != 'none':
self.labels = decode_model(self.model, self.bits)
self.put(self.labels[1], self.labels[2], self.out_ann,
- [2, [self.labels[0]]]) # Write model decode.
+ [6, [self.labels[0]]]) # Write model decode.
self.put(self.labels[4], self.labels[5], self.out_ann,
- [2, [self.labels[3]]]) # Write model decode.
+ [7, [self.labels[3]]]) # Write model decode.
samples = self.samplenum - self.samplenumber_last
pin = self.wait({'skip': 8 * samples}) # Wait for end of sync bit.
- self.bit_last = self.samplenum
- self.put(self.bit_first, self.bit_last, self.out_ann,
- [0, ['Sync']]) # Write sync label.
+ self.es = self.samplenum
+ self.putx([4, ['Sync']]) # Write sync label.
self.reset() # Reset and wait for next set of pulses.
self.state = 'DECODE_TIMEOUT'
if not self.state == 'DECODE_TIMEOUT':
projects / libsigrokdecode.git / blobdiff