X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fspi%2F__init__.py;h=a65f167ec4786921fc0c8014c9c9501beb19fa08;hb=58e7e508ded52194ed06a23a48f169779f4c7708;hp=8734acf3f36ebe57bb468351846ee2a5f97e884e;hpb=3e3c03309ee21d839f85e981d361ca77b08d5ba0;p=libsigrokdecode.git diff --git a/decoders/spi/__init__.py b/decoders/spi/__init__.py index 8734acf..a65f167 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 ## @@ -19,29 +19,14 @@ ## ''' -Serial Peripheral Interface protocol decoder. +The SPI (Serial Peripheral Interface) 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. -Details: -TODO - -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 *