X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fspi.py;h=d9891b38cd36bb4bc8921e8504e20fb13158f7d9;hb=67e847fd2185aa5677954dceacf3c279d7a68af1;hp=731c77cc3c8ae0214697cd5e0b99c4b13b5b2da6;hpb=3643fc3fe053bf531b4a7618d02c3d92c29f924b;p=libsigrokdecode.git diff --git a/decoders/spi.py b/decoders/spi.py index 731c77c..d9891b3 100644 --- a/decoders/spi.py +++ b/decoders/spi.py @@ -18,6 +18,8 @@ ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA ## +import sigrok + class Sample(): def __init__(self, data): self.data = data @@ -30,6 +32,7 @@ def sampleiter(data, unitsize): yield(Sample(data[i:i+unitsize])) class Decoder(): + id = 'spi' name = 'SPI Decoder' desc = '...desc...' longname = '...longname...' @@ -51,16 +54,16 @@ class Decoder(): self.bytesreceived = 0 def start(self, metadata): - self.unitsize = metadata["unitsize"] + self.unitsize = metadata['unitsize'] def report(self): - return "SPI: %d bytes received" % self.bytesreceived + return 'SPI: %d bytes received' % self.bytesreceived def decode(self, data): # We should accept a list of samples and iterate... - for sample in sampleiter(data["data"], self.unitsize): + for sample in sampleiter(data['data'], self.unitsize): - sck = sample.probe(self.probes["sck"]) + sck = sample.probe(self.probes['sck']) # Sample SDATA on rising SCK if sck == self.oldsck: continue @@ -70,9 +73,9 @@ class Decoder(): # If this is first bit, save timestamp if self.rxcount == 0: - self.time = data["time"] + self.time = data['time'] # Receive bit into our shift register - sdata = sample.probe(self.probes["sdata"]) + sdata = sample.probe(self.probes['sdata']) if sdata: self.rxdata |= 1 << (7 - self.rxcount) self.rxcount += 1 @@ -80,11 +83,11 @@ class Decoder(): if self.rxcount != 8: continue # Received a byte, pass up to sigrok - outdata = {"time":self.time, - "duration":data["time"] + data["duration"] - self.time, - "data":self.rxdata, - "display":("%02X" % self.rxdata), - "type":"spi", + outdata = {'time':self.time, + 'duration':data['time'] + data['duration'] - self.time, + 'data':self.rxdata, + 'display':('%02X' % self.rxdata), + 'type':'spi', } sigrok.put(outdata) # Reset decoder state @@ -93,22 +96,5 @@ class Decoder(): # Keep stats for summary self.bytesreceived += 1 -if __name__ == "__main__": - data = open("spi_dump.bin").read() - - # dummy class to keep Decoder happy for test - class Sigrok(): - def put(self, data): - print "\t", data - sigrok = Sigrok() - - dec = Decoder(driver='ols', unitsize=1, starttime=0) - dec.decode({"time":0, "duration":len(data), "data":data, "type":"logic"}) - - print dec.summary() -else: - import sigrok - -#Tested with: -# sigrok-cli -d 0:samplerate=1000000:rle=on --time=1s -p 1,2 -a spidec +sigrok.register(Decoder)