6. Changes¶

6.1. Release 0.12.3 (released 9-Dec-2014)¶

6.1.1. Changes¶

Methods older and newer: rewrite of boundary conditions processing.

6.1.2. Bugs fixed¶

Method split: wrong return signal when split at or after self end.
Method older: wrong end time of return signal.

6.1.3. Documentation¶

Methods split, newer and older: new documentation and layout.

6.2. Release 0.12.2 (released 6-Dec-2014)¶

6.2.1. Bugs fixed¶

Method correlation: fix wrong computation of correlation function when there is a mask.
Method phase: fix initial search width not set to the whole shift range.

6.2.2. Documentation¶

Method correlation: new documentation layout.

6.3. Release 0.12.1 (released 3-Dec-2014)¶

6.3.1. New features¶

Method phase: add correlation value at phase shift.

6.3.2. Bugs fixed¶

Method phase: fix incomplete refactoring of other identifier.

6.4. Release 0.12.0 (released 1-Dec-2014)¶

6.4.1. New features¶

Method shift: now skips computations for zero offset.
New method phase: computation of phase among two signals.

6.4.2. Changes¶

Method split: now manage a split time outside signal domain returning the proper void signal.
Method correlation: dropped step_left and step_right arguments, substituted skip and width.
Method plotchar: dropped period argument.
Method mod2code: now symbol start time is the phase with respect to the sig start time.
Methods noise and square: now require an origin argument.

6.4.3. Internals¶

Method correlation: refactoring for new arguments skip and width.
Method correlation: augumented test.
New method phase: add test.

6.4.4. Documentation¶

Started better layout for function/methods arguments and return patterns.

6.5. Release 0.11.2 (released 8-Oct-2014)¶

6.5.1. Bugs fixed¶

Method plotchar: missing last non flat char after flat chars.

6.6. Release 0.11.1 (released 6-Oct-2014)¶

6.6.1. Changes¶

Method plotchar: now argument max_flat deault is None, was 100 .

6.6.2. Bugs fixed¶

Method level: now for time < start return (None,0) .
Method plotchar: last flat lost when signal end < plot end.
Method stream: now the newest part is self, was a new allocated signal.

6.6.3. Internals¶

Method plotchar refactored.
New test for methods level and plotchar.

6.7. Release 0.11.0 (released 1-Oct-2014)¶

6.7.1. Features added¶

Method plotchar: semigraphic signal plot with line drawing characters.

6.7.2. Changes¶

Method level: now return None, len(signal) when time is beyond signal end.
Method elapse: return zero when signal is void, before was none.

6.7.3. Bugs fixed¶

Method serial_tx: returned void signal when chars had len == 1.
Method serial_rx: dead lock when last sample time was before end time and after last ege time.

6.7.4. Documentation¶

Add example plot.

6.8. Release 0.10.0 (released 26-Sep-2014)¶

6.8.1. Features added¶

Method validate: a consistency checker for signal attributes.
Method code2mod: code to symbols signal modulator.
Method mod2code: demodulator by maximum correlation symbol estimation.
Example “modulation”.
New method end_level: return the ending level of a signal.
New method older: return the older part of a signal with respect to a given time.
New method newer: return the newer part of a signal with respect to a given time.

6.8.2. Changes¶

Method test changed to function.
Signal instancing now validate signal attributes.
Now, instancing of Signal() generates a void signal.
Changed return of method split when split time falls outside signal domain.
Now method serial_tx generate a serial signal with start=origin.

6.8.3. Bugs fixed¶

Method chop: wrong chop when split falls on signal end.
Method __add__: added inplace=false to join call.
Method level: wrong level returned.
Method join: changed start and end calls with corresponding attributes.
Method serial_rx: corrected wrong char start detection and level tests.
Method noise: missing return argument, the noise signal itself.
Method append: now update correctly the end time of the result.

6.8.4. Documentation¶

Added the rules of BTS format.

6.8.5. Internals¶

Rewrite of void signal handling through all methods and functions.
New test for methods code2mod and mod2code.
Refactored method split with method level.
Added random inplace to spit/join test.
New test for methods older and newer.
Method append: now implemented with a call to split.

6.9. Release 0.9.0 (released 10-Sep-2014)¶

6.9.1. Features added¶

New method level: return the signal level and edge position at a given time.
Methods shift, reverse, __invert__ now can work inplace: result into self signal.
New method __nonzero__: return true if the signal is not empty.

6.9.2. Changes¶

All methods and objects changed to work with the new BTS format (v2).
Removed methods: start, end.

6.9.3. Bugs fixed¶

Fix method reverse: now works when signal start != 0.
Fix method split when split time falls on signal start or end and after last edge.
Fix method chop.
Fix methods __eq__ and __ne__: now work when operands are None.
Fix function serial_rx. Now work with constant (no edges) signals. Eliminated spurious status generation.

6.9.4. Internals¶

Method _intersect now returns as last edge position the position plus one.
Added tests for inplace/noinplace testing.

6.10. Release 0.8.0 (released 26-Aug-2014)¶

6.10.1. Features added¶

New method chop: divide a signal in a sequence of contiguous signal of given period.
Method correlation now has a mask argument: if mask signal is not none, the correlation is computed only where mask=1.
Method join now has an inplace arguments. When true, no new signal is generated for the join result. Self signal is used instead.
Method pwm2bin now can convert by synchronouos symbols correlation.
Method split now has an inplace argument. When true, no new signal is generated for the newer signal part. Self signal is used instead.
Method split, when splitting on a signal change time, now assigns the change to the start of the newer signal part.

6.10.2. Changes¶

Methods start, end, elapsed now return None when the signal time changes sequence is empty.
Method bin2pwm now signal start=origin and signal end is not extended.

6.10.3. Bugs fixed¶

Fix method correlation stepping limits for defaults.
Fix method split splitting on a change time: now correct end of older part and correct start of newer part are generated. start of newer were generated.
Fix method serial_rx bit time computation: use floats.

6.10.4. Internals¶

Added test for method chop.
Added test for new the convertion mode (sync symb corr) of method pwm2bin.

6.11. Release 0.7.1 (released 3-Feb-2014)¶

6.11.1. Bugs fixed¶

Fix inequality test: missing __ne__ method.

6.11.2. Internals¶

Optimized “and” and “or” operator for constant signals.

6.12. Release 0.7.0 (released 27-Jan-2014)¶

6.12.1. Features added¶

Add buf_step to method stream.
Add return self to in place working method clone_into.

6.12.2. Incompatible changes¶

Change step_start, step_num with step_left, step_right in method correlation.
Change correlation unittest from a graphic one to procedural only.

6.13. Release 0.6.0 (released 16-Dec-2013)¶

6.13.1. Features added¶

Add method clone_into.
Add method concatenate: add operator.
Add method stream.
Add method elapse returning the signal elapse time.
Add example to demonstrate phase recovery from a noisy signal (lockin).
Add examples, module reference, bts format, change log to doc pages.
Add unittest for stream.

6.13.2. Incompatible changes¶

Change start level with active argument in noise method.

6.13.3. Bugs fixed¶

Fix method append: make it return the signal with the append result.
Fix shift in correlation method.
Fix time shift computation in correlaton method: was delayed by 1 step size.

6.13.4. Internals¶

Change method append: check arguments with assert.
Refactor method split.

6.14. Release 0.5.0 (released 9-Dec-2013)¶

6.14.1. Features added¶

Embed y limits setting into plot method.
Add method square for signal generation of a periodc square wave.
Add a more fine control in correlation function computation.
Add signal append method.
Add method start, return signal start time.
Add method end, return signal end time.
Add method len, return signal change times sequence length.

6.14.2. Incompatible changes¶

Change start times computation in bin2pwn, serial_tx to minimize time elapse from start to first change.

6.14.3. Bugs fixed¶

Fix 0.4.0 release changelog: missing changes.

6.14.4. Internals¶

Change noise from method to function.
Change examples for changed noise method.

6.15. Release 0.4.0 (released 2-Dec-2013)¶

6.15.1. Features added¶

Add signal split method.
Add two signals join method.
Add unittest for split and join.
Add float times capability to BTS signals.

6.15.2. Incompatible changes¶

Uniformate pwm2bin arguments to bin2pwm methods.
Add tscale=1. argument in bin2pwm.
Change to tscale=1. argument in serial_tx.

6.15.3. Bugs fixed¶

Fix slevel setup, signal start and end in bin2pwm.

6.15.4. Internals¶

Rewrite jitter method.

6.16. Release 0.3.0 (released 11-Nov-2013)¶

6.16.1. Features added¶

Add async serial transmitter (bits.serial_tx method) from chars to BTS serial line signal.
Add async serial receiver (bitis.serial_rx method) from BTS serial line to chars.
Add async serial transmitter example: serial_tx.py.
Add unittest for async serial tx and rx.
Modified plot method: only 0,1 ticks on y axis.

6.17. Release 0.2.0 (released 4-Nov-2013)¶

6.17.1. Features added¶

Add PWM coder and decoder between a BTS signal (PWM) and a binary code.
New correlation example.

6.18. Release 0.1.0 (released 29-Oct-2013)¶

First release.

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