diff options
Diffstat (limited to 'decoders/spi.py')
| -rw-r--r-- | decoders/spi.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/decoders/spi.py b/decoders/spi.py index 480174e..5b97cd4 100644 --- a/decoders/spi.py +++ b/decoders/spi.py @@ -84,6 +84,7 @@ class Decoder(srd.Decoder): self.misodata = 0 self.bytesreceived = 0 self.samplenum = -1 + self.cs_was_deasserted_during_data_word = 0 # Set protocol decoder option defaults. self.cs_active_low = Decoder.options['cs_active_low'][1] @@ -128,6 +129,8 @@ class Decoder(srd.Decoder): # If this is the first bit, save its sample number. if self.bitcount == 0: self.start_sample = samplenum + if cs: + self.cs_was_deasserted_during_data_word = 1 # Receive MOSI bit into our shift register. if self.bitorder == MSB_FIRST: @@ -153,6 +156,10 @@ class Decoder(srd.Decoder): [ANN_HEX, ['MOSI: 0x%02x, MISO: 0x%02x' % (self.mosidata, self.misodata)]]) + if self.cs_was_deasserted_during_data_word: + self.put(self.start_sample, self.samplenum, self.out_ann, + [ANN_HEX, ['WARNING: CS# was deasserted!']]) + # Reset decoder state. self.mosidata = 0 self.misodata = 0 |