diff options
Diffstat (limited to 'decoders/onewire_link/__init__.py')
| -rw-r--r-- | decoders/onewire_link/__init__.py | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/decoders/onewire_link/__init__.py b/decoders/onewire_link/__init__.py index 28b0194..69b570f 100644 --- a/decoders/onewire_link/__init__.py +++ b/decoders/onewire_link/__init__.py @@ -2,6 +2,7 @@ ## This file is part of the libsigrokdecode project. ## ## Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de> +## Copyright (C) 2017 Kevin Redon <kingkevin@cuvoodoo.info> ## ## This program is free software; you can redistribute it and/or modify ## it under the terms of the GNU General Public License as published by @@ -39,29 +40,17 @@ overdrive communication speed. The following minimal values should be used: Channels: 1-Wire requires a single signal, but some master implementations might have a separate signal used to deliver power to the bus during temperature conversion -as an example. This power signal is currently not used. +as an example. - owr (1-Wire signal line) - - pwr (optional, dedicated power supply pin) Options: -1-Wire is an asynchronous protocol, so the decoder must know the samplerate. -The timing for sampling bits, presence, and reset is calculated by the decoder, -but in case the user wishes to use different values, it is possible to -configure the following timing values (number of samplerate periods): +1-Wire is an asynchronous protocol with fixed timing values, so the decoder must +know the samplerate. +Two speeds are available: normal and overdrive. The decoder detects when +switching from one to another but the user can set which to start decoding with: - - overdrive (if active the decoder will be prepared for overdrive) - - cnt_normal_bit (time for normal mode sample bit) - - cnt_normal_slot (time for normal mode data slot) - - cnt_normal_presence (time for normal mode sample presence) - - cnt_normal_reset (time for normal mode reset) - - cnt_overdrive_bit (time for overdrive mode sample bit) - - cnt_overdrive_slot (time for overdrive mode data slot) - - cnt_overdrive_presence (time for overdrive mode sample presence) - - cnt_overdrive_reset (time for overdrive mode reset) - -These options should be configured only on very rare cases and the user should -read the decoder source code to understand them correctly. + - overdrive (to decode starting with overdrive speed) ''' from .pd import Decoder |