X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=blobdiff_plain;f=decoders%2Fi2c%2Fpd.py;h=f31e33ef85fb38341cb631c82b3dd912dccf7f87;hp=7f8960da4ffdf60fbf7f070f1d91107a0c1755b7;hb=d6d8a8a440ea2a81e6ddde33d16bc84d01cdb432;hpb=10aeb8ea8b183394cebc0033f048f49f4262b57d diff --git a/decoders/i2c/pd.py b/decoders/i2c/pd.py index 7f8960d..f31e33e 100644 --- a/decoders/i2c/pd.py +++ b/decoders/i2c/pd.py @@ -18,7 +18,6 @@ ## # TODO: Look into arbitration, collision detection, clock synchronisation, etc. -# TODO: Implement support for 10bit slave addresses. # TODO: Implement support for inverting SDA/SCL levels (0->1 and 1->0). # TODO: Implement support for detecting various bus errors. @@ -62,9 +61,6 @@ proto = { 'DATA WRITE': [9, 'Data write', 'DW'], } -class SamplerateError(Exception): - pass - class Decoder(srd.Decoder): api_version = 3 id = 'i2c' @@ -74,6 +70,7 @@ class Decoder(srd.Decoder): license = 'gplv2+' inputs = ['logic'] outputs = ['i2c'] + tags = ['Embedded/industrial'] channels = ( {'id': 'scl', 'name': 'SCL', 'desc': 'Serial clock line'}, {'id': 'sda', 'name': 'SDA', 'desc': 'Serial data line'}, @@ -239,9 +236,10 @@ class Decoder(srd.Decoder): def handle_stop(self, pins): # Meta bitrate - elapsed = 1 / float(self.samplerate) * (self.samplenum - self.pdu_start + 1) - bitrate = int(1 / elapsed * self.pdu_bits) - self.put(self.ss_byte, self.samplenum, self.out_bitrate, bitrate) + if self.samplerate: + elapsed = 1 / float(self.samplerate) * (self.samplenum - self.pdu_start + 1) + bitrate = int(1 / elapsed * self.pdu_bits) + self.put(self.ss_byte, self.samplenum, self.out_bitrate, bitrate) cmd = 'STOP' self.ss, self.es = self.samplenum, self.samplenum @@ -253,9 +251,6 @@ class Decoder(srd.Decoder): self.bits = [] def decode(self): - if not self.samplerate: - raise SamplerateError('Cannot decode without samplerate.') - while True: # State machine. if self.state == 'FIND START':