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The ssi32 decoder implements a reset() method which clears internally
accumulated data during decoding. Rename the method before all decoders
will grow a new reset() method that will be used for a different purpose.
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The mrf24j40 decoder implements a reset() method which clears internally
accumulated data during decoding. Rename the method before all decoders
will grow a new reset() method that will be used for a different purpose.
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The ade77xx decoder implements a reset() method which clears internally
accumulated data during decoding. Rename the method before all decoders
will grow a new reset() method that will be used for a different purpose.
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The decoder's .reset() method seems to partially implement constructor's
assignments, but is not referenced anywhere. There is neither a direct
call site in the remainder of pd.py which uses the "reset" name, and
runtime computation only references "handle_*()" methods for commands
and responses.
Drop the unused .reset() method in the individual decoder before the
introduction of a common .reset() method approach for all decoders.
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The am230x decoder implements a reset() method which clears internal
decoder state. Rename the method before all decoders will grow a new
reset() method that will be used for a different purpose.
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This replaces the fixed timing margin with a percentage based tolerance
to better allow for timing inaccuracies, especially for longer timings
like the Leader and Repeat codes.
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Using the format string 'I' with the default (implied) prefix '@'
results in both word size and endianness being platform dependent.
In this case standard size (32 bits) and little endianness is
required, so the prefix '<' needs to be used.
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This fixes (parts of) bug #1019.
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According to the USB 2.0 spec, 8.5.3.4, a protocol stall condition lasts
until the next SETUP transfer. On reception of the SETUP, adjust the end
sample accordingly, and flush the previous CONTROL transfer.
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Check for falling edges (i.e. changes to dominant state) between bits of
a CAN frame, and adjust subsequent bit slots' sample points accordingly.
This is a simple implementation which could get improved later. But it
improves the decoder's reliability when the input signal's rate differs
from the nominal rate.
This fixes bug #990.
Reported-By: PeterMortensen via IRC
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Consistently use .sample_point for the member variable that corresponds
to the 'sample_point' property. Use 'samplenum' in .get_sample_point()
to reflect that the routine returns a sample number. This eliminates the
'bitpos' identifier which was used for two different things.
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Make obvious that the start bit's value is 1 in the IDLE stage.
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The 'fields' table of state and descriptions is not fully populated,
some slots are missing. Cope with lookup misses when unexpected input
data is not found in the table. Use different error text in annotations
for described but invalid states (the previous implementation used
"reserved / invalid"), and for states that are not described in the
table (introduce the "reserved / unknown" text for conditions that are
not covered by the decoder implementation).
The previous implementation missed the emission of some warnings. When a
"reserved / invalid" description was found, the subsequent exact match
for "reserved" failed and the warning was not emitted. Weaken the test
to emit warnings for either description that has "reserved" in it,
regardless of whether the text was found in the table or is not part of
the table at all.
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Annotations generated by the onewire_network decoder started where bit 1
began, while it should align with the start of bit 0.
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Getting the first edge outside of the loop in .decode() greatly
simplifies the logic, any other edge then is just an update of the
previously collected data, determined by always equal code.
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The previous implementation of the I2C decoder used to retrieve and not
process the first sample of the input stream. Remove this instruction.
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Telling .wait() to "skip one sample" slightly obfuscates the intent of
getting the next samples while no condition applies. Explicitly pass no
condition arguments instead, to better reflect the purpose. Coincidently
these .wait() calls will execute in slightly less expensive code paths
in the common code.
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Rephrase how the 'WAIT IDLE' stage skips over all-low input signals.
Have the next high level on either line detected in common code.
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Do reference the period's start and end sample numbers when the
duty cycle is written to the binary output stream. The previous
implementation inappropriately used the period counter instead.
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Move more items from the Python object's members to local variables of the
decode() method, as they are used there exclusively.
Mark a spot where the binary output references suspicious "sample numbers".
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With the simplicity of PWM waveforms and the convenience of the v3 API,
there is no need to maintain internal state. After the start of the
first period was determined based on the input signal's polarity, any
period is defined by just the next two edges, and the next period is
immediately to follow.
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This is not really relevant for stacked PDs currently (they can be used
unmodified with either PDv2 or PDv3 low-level decoders), but it'll allow
us to drop PDv2 support completely.
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