import sigrokdecode as srd
# Annotation feed formats
-ANN_ASCII = 0
-ANN_DEC = 1
-ANN_HEX = 2
-ANN_OCT = 3
-ANN_BITS = 4
+ANN_LINK = 0
+ANN_NETWORK = 1
+ANN_TRANSFER = 2
class Decoder(srd.Decoder):
api_version = 1
'overdrive': ['Overdrive', 0],
}
annotations = [
- ['ASCII', 'Data bytes as ASCII characters'],
- ['Decimal', 'Databytes as decimal, integer values'],
- ['Hex', 'Data bytes in hex format'],
- ['Octal', 'Data bytes as octal numbers'],
- ['Bits', 'Data bytes in bit notation (sequence of 0/1 digits)'],
+ ['Link', 'Link layer events (reset, presence, bit slots)'],
+ ['Network', 'Network layer events (device addressing)'],
+ ['Transfer', 'Transfer layer events'],
]
def __init__(self, **kwargs):
# The width of the 1-Wire time base (30us) in number of samples.
# TODO: optimize this value
self.time_base = float(self.samplerate) * float(0.000030)
- print ("DEBUG: samplerate = %d, time_base = %d" % (self.samplerate, self.time_base))
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_LINK, ['time_base = %d' % self.time_base]])
def report(self):
pass
self.lnk_fall = self.samplenum
# Go to waiting for sample time
self.lnk_state = 'WAIT FOR DATA SAMPLE'
- self.put(self.lnk_fall, self.samplenum, self.out_ann,
- [ANN_DEC, ['LNK: NEGEDGE: ']])
elif self.lnk_state == 'WAIT FOR DATA SAMPLE':
# Data should be sample one 'time unit' after a falling edge
if (self.samplenum - self.lnk_fall == 0.5*self.time_base):
self.lnk_event = "DATA BIT"
if (self.lnk_bit) : self.lnk_state = 'WAIT FOR FALLING EDGE'
else : self.lnk_state = 'WAIT FOR RISING EDGE'
- self.put(self.lnk_fall, self.samplenum, self.out_ann,
- [ANN_DEC, ['LNK: BIT: ' + str(self.lnk_bit)]])
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_LINK, ['BIT: %01x' % self.lnk_bit]])
elif self.lnk_state == 'WAIT FOR RISING EDGE':
# The end of a cycle is a rising edge.
if (owr == 1):
# Send a reset event to the next protocol layer.
self.lnk_event = "RESET"
self.lnk_state = "WAIT FOR PRESENCE DETECT"
- self.put(self.lnk_fall, self.samplenum, self.out_proto,
- ['RESET'])
- self.put(self.lnk_fall, self.samplenum, self.out_ann,
- [ANN_DEC, ['LNK: RESET: ']])
- print ("DEBUG: RESET t0=%d t+=%d" % (self.lnk_fall, self.samplenum))
+ self.put(self.lnk_fall, self.samplenum, self.out_proto, ['RESET'])
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_LINK , ['RESET']])
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['RESET']])
# Reset the timer.
self.lnk_fall = self.samplenum
# Otherwise this is assumed to be a data bit.
#self.lnk_event = "PRESENCE DETECT"
if (self.lnk_present) : self.lnk_state = 'WAIT FOR FALLING EDGE'
else : self.lnk_state = 'WAIT FOR RISING EDGE'
- self.put(self.lnk_fall, self.samplenum, self.out_ann,
- [ANN_DEC, ['LNK: PRESENCE: ' + str(self.lnk_present)]])
- print ("DEBUG: PRESENCE=%d t0=%d t+=%d" % (self.lnk_present, self.lnk_fall, self.samplenum))
+ present_str = "False" if self.lnk_present else "True"
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_LINK , ['PRESENCE: ' + present_str]])
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['PRESENCE: ' + present_str]])
else:
raise Exception('Invalid lnk_state: %d' % self.lnk_state)
if (self.net_state == "ROM COMMAND"):
if (self.collect_data(8)):
# self.put(self.lnk_fall, self.samplenum,
-# self.out_proto, ['LNK: COMMAND', self.net_data])
- self.put(self.lnk_fall, self.samplenum, self.out_ann,
- [ANN_DEC, ['NET: ROM COMMAND: 0x' + hex(self.net_data)]])
- print ("DEBUG: ROM_COMMAND=0x%02x t0=%d t+=%d" % (self.net_data, self.lnk_fall, self.samplenum))
+# self.out_proto, ['ROM COMMAND', self.net_data])
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: 0x%02x' % self.net_data]])
if (self.net_data == 0x33):
# READ ROM
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'READ ROM\'']])
self.net_state = "ADDRESS"
elif (self.net_data == 0x0f):
# READ ROM TODO
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'READ ROM ???\'']])
self.net_state = "ADDRESS"
elif (self.net_data == 0xcc):
# SKIP ROM
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'SKIP ROM\'']])
self.net_state = "CONTROL COMMAND"
elif (self.net_data == 0x55):
# MATCH ROM
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'MATCH ROM\'']])
self.net_state = "ADDRESS"
elif (self.net_data == 0xf0):
# SEARCH ROM
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'SEARCH ROM\'']])
self.net_state = "SEARCH"
elif (self.net_data == 0x3c):
# OVERDRIVE SKIP ROM
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'OVERDRIVE SKIP ROM\'']])
self.net_state = "CONTROL COMMAND"
elif (self.net_data == 0x69):
# OVERDRIVE MATCH ROM
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'OVERDRIVE MATCH ROM\'']])
self.net_state = "ADDRESS"
elif (self.net_state == "ADDRESS"):
# family code (1B) + serial number (6B) + CRC (1B)
if (self.collect_data((1+6+1)*8)):
self.net_address = self.net_data & 0xffffffffffffffff
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM: 0x%016x' % self.net_address]])
self.net_state = "CONTROL COMMAND"
elif (self.net_state == "SEARCH"):
# family code (1B) + serial number (6B) + CRC (1B)
if (self.collect_search((1+6+1)*8)):
self.net_address = self.net_data & 0xffffffffffffffff
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM: 0x%016x' % self.net_address]])
self.net_state = "CONTROL COMMAND"
elif (self.net_state == "CONTROL COMMAND"):
if (self.collect_data(8)):
# self.put(self.lnk_fall, self.samplenum,
# self.out_proto, ['LNK: COMMAND', self.net_data])
self.put(self.lnk_fall, self.samplenum, self.out_ann,
- [ANN_DEC, ['NET: FUNCTION COMMAND: 0x' + hex(self.net_data)]])
- print ("DEBUG: FUNCTION_COMMAND=0x%02x t0=%d t+=%d" % (self.net_data, self.lnk_fall, self.samplenum))
+ [ANN_TRANSFER, ['TRANSFER: FUNCTION COMMAND: 0x' + hex(self.net_data)]])
if (self.net_data == 0x48):
# COPY SCRATCHPAD
self.net_state = "TODO"
if (self.net_cnt == length):
self.net_data = self.net_data & ((1<<length)-1)
self.net_cnt = 0
- print ("DEBUG: DATA=0x%0x t0=%d t+=%d" % (self.net_data, self.lnk_fall, self.samplenum))
return (1)
else:
return (0)
self.net_data = self.net_data & ((1<<length)-1)
self.net_search = "P"
self.net_cnt = 0
- print ("DEBUG: SEARCH_P=0x%0x t0=%d t+=%d" % (self.net_data_p, self.lnk_fall, self.samplenum))
- print ("DEBUG: SEARCH_N=0x%0x t0=%d t+=%d" % (self.net_data_n, self.lnk_fall, self.samplenum))
- print ("DEBUG: SEARCH =0x%0x t0=%d t+=%d" % (self.net_data , self.lnk_fall, self.samplenum))
return (1)
else:
return (0)
projects / libsigrokdecode.git / commitdiff