X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fspi%2Fpd.py;h=7e4a1e5f9aaf5bedce191815b1d3cbb4e444d3de;hb=0702e0cf5a0577122c4008007151b6c3d798b0fb;hp=b6c96bca82c1f18276587197b984bfefd6aa8118;hpb=efa641735217e5425f93e69cbaddf70d75c7e9e4;p=libsigrokdecode.git diff --git a/decoders/spi/pd.py b/decoders/spi/pd.py index b6c96bc..7e4a1e5 100644 --- a/decoders/spi/pd.py +++ b/decoders/spi/pd.py @@ -23,6 +23,26 @@ import sigrokdecode as srd +''' +Protocol output format: + +SPI packet: +[, , ] + +Commands: + - 'DATA': contains the MISO data, contains the MOSI data. + The data is _usually_ 8 bits (but can also be fewer or more bits). + Both data items are Python numbers, not strings. + - 'CS CHANGE': is the old CS# pin value, is the new value. + Both data items are Python numbers (0/1), not strings. + +Examples: + ['CS-CHANGE', 1, 0] + ['DATA', 0xff, 0x3a] + ['DATA', 0x65, 0x00] + ['CS-CHANGE', 0, 1] +''' + # Key: (CPOL, CPHA). Value: SPI mode. # Clock polarity (CPOL) = 0/1: Clock is low/high when inactive. # Clock phase (CPHA) = 0/1: Data is valid on the leading/trailing clock edge.