X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=decoders%2Fspi%2F__init__.py;h=582891ac261b1a9d2de5eea7d19d5230c394a74a;hb=7fb4935edde881272fabdeda83f554bcf150689f;hp=8734acf3f36ebe57bb468351846ee2a5f97e884e;hpb=3e3c03309ee21d839f85e981d361ca77b08d5ba0;p=libsigrokdecode.git diff --git a/decoders/spi/__init__.py b/decoders/spi/__init__.py index 8734acf..582891a 100644 --- a/decoders/spi/__init__.py +++ b/decoders/spi/__init__.py @@ -1,5 +1,5 @@ ## -## This file is part of the sigrok project. +## This file is part of the libsigrokdecode project. ## ## Copyright (C) 2012 Uwe Hermann ## @@ -21,27 +21,14 @@ ''' Serial Peripheral Interface protocol decoder. -Details: -TODO +This protocol decoder supports synchronous SPI(-like) protocols with a +clock line, a MISO and MOSI line for data transfer in two directions, +and an optional CS# pin. -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. - -Example: - ['CS-CHANGE', 1, 0] - ['DATA', 0xff, 0x3a] - ['DATA', 0x65, 0x00] - ['CS-CHANGE', 0, 1] +If CS# is supplied, data is only decoded when CS# is asserted (clock +transitions where CS# is not asserted are ignored). If CS# is not supplied, +data is decoded on every clock transition (depending on SPI mode). ''' -from .spi import * +from .pd import *