diff options
Diffstat (limited to 'decoders/onewire/__init__.py')
| -rw-r--r-- | decoders/onewire/__init__.py | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/decoders/onewire/__init__.py b/decoders/onewire/__init__.py index b58dde7..c43dabc 100644 --- a/decoders/onewire/__init__.py +++ b/decoders/onewire/__init__.py @@ -29,6 +29,13 @@ layered, the provided parser decodes the next layers: The higher layers (transport, presentation) are not decoded, since they are mostly device specific and it would take a lot of code to interpret them. +Sample rate: +A high enough sample rate is required to properly detect all the elements of +the protocol. A lower sample rate can be used if the master does not use +overdrive communication speed. The next minimal values should be used: +- overdrive available: 2MHz minimum, 5MHz suggested +- overdrive not available: 400kHz minimum, 1MHz suggested + Probes: 1-Wire requires a single signal, but some master implementations might have a separate signal use to deliver power to the bus during temperature conversion @@ -60,10 +67,10 @@ If link layer annotations are shown, possible issues with sample rate and sample timing are also shown. TODO: -- fix annotations to have event duration instead of begin end time - add CRC checks for network layer - add transport layer code - review link layer code, to check for protocol correctness +- define output protocol ''' from .onewire import * |