- Added generate_pcb() function to create a PCB file directly from a Circuit object. (Currently only works for KiCad.)
- Buses can now be created without names and a name will be automatically assigned. Or use "name=..." to manually assign a name. Or just place a string in the list of arguments and that will be used.
- Footprint search can now process directories of footprints without the need for an fp-lib-table file.
- Part fields can now be accessed using attributes.
- Creating fields requires use of Part.fields[key] instead of Part.key.
- Added context manager for Circuit object so Parts/Nets can be joined using a with... statement.
- Adding/removing Parts to/from a Circuit can now be done using += and -=.
- Tags can be added to Parts and Circuits for hierarchical naming.
- Part values can now be assigned arbitrary objects including units from either PySpice or Pint.
- Multi-function pin names can now be split into a collection of shorter aliases, thus reducing the need to access pins using regexes.
- Schematics can now be automatically using the KiCad symbol graphics for the parts.
- The library interface now handles the Skywater 130 SPICE libraries.
- Added @package decorator to make subcircuits act like Parts.
- Interfaces now act like dictionaries so the ** operator works as expected.
- Interface I/O can now be accessed using brackets ([]) and via attributes (e.g., intfc.a).
- Interface I/O can now be assigned aliases.
- Added tee() function for creating T-junctions in networks.
- Custom ERCs can now be added using the erc_assert function.
- Aliases take precedence over default pin names.
- Substring matching in pin names can be enabled/disabled (off by default).
- Added XSPICE parts capability to SPICE simulations.
- Unconnected XSPICE ports now are set to NULL in SPICE node lists.
- Added no_files() function to disable output to files of netlists, ERCs, logs, backup libs.
- The
zycutility was split into a separate repository and placed on PyPi. - Fixed slicing of grouped part pins so things like
ram['A[1]']won't grabA1,A10,A11, etc.
- Prevent changing the name of net 0 when generating a SPICE netlist.
- Fixed Pin, Net, Bus and Part iterators so they'll work in nested loops.
- Part units are automatically added when a part is parsed.
- Files are now opened for reading using latin_1 encoding to allow special symbols used by KiCad.
- Part pins can now be aliased directly, e.g. uc[5].aliases += 'gp0'.
- Added class method get() to Part to allow finding a part based on name, reference, description.
- Refactored ERC functions to allow user-extensibility.
- Created a base object for Circuit, Part, Pin, Net, and Bus objects.
- Added an aliases property to the SKiDL base object so all its children could be aliased.
- Updated to perform simulations with ngspice version 30.
- Added a notes property to allow attachment of user notes to Parts, Pins, Nets, etc.
- Added net class to net objects for specifying net-specific design rules in PCBNEW.
- Ignore multiple pins with the same number in symbols with DeMorgan equivalents.
- Fixed problem with non-ASCII chars (e.g. Ohms) in strings.
- Sped-up part/net naming using heap/cache, binary search, sets.
- Sped-up by storing net traversals to avoid recomputation.
- Fixed processing of slices in things like sdram['A[0:15]'].
- Sped-up part_search() by eliminating unnecessary part parsing.
- Improved schematic generation with graphviz.
- Search now allows AND/OR of parenthesized terms.
- New GUI for searching for parts and footprints.
- Footprint libraries to search are now selected from the global fp-lib-table file.
- KiCad library component field values are now stored in a dict in Part indexed by the field name or F0, F1, F2...
- KiCad library component field values are also stored as Part attributes using the field name or F0, F1, F2...
- Added p and n attributes to Part object to permit explicit reference to pin numbers or names.
searchcommand no longer looks in backup library because that leads to erroneous hits in all libraries.- Part objects will now iterate through their pins and len() will return the number of pins.
- Updated netlist_to_skidl utility to account for new version of kinparse.
- Updated website.
- KISYSMOD is no longer used to find part libraries, only KICAD_SYMBOL_DIR is used now.
- Fixed an error where creating a backup part library for a design would create extra pins attached to the nets.
- Added Network objects to make it easy to create serial & parallel combinations of two-pin parts.
- SKiDL design hierarchy is now embedded in the KiCad netlist that's generated.
- Added Interface objects for storing complicated sets of I/O signals for subsystems.
- ERC no longer redundantly checks every segment of a multi-segment net and reports multiple errors.
- copy() function of Part, Bus, Pin, Net objects now returns a scalar object while copy(1) returns a list with one object.
- Bus, Pin, and Net objects now have iterators.
- Corrected initialization of KiCad library search paths.
- Added pull() and fetch() methods for getting/creating existing/new Net and Bus objects.
- Added drive property to pins to override their default pin function attribute.
- Part pins and units can now be accessed as attributes.
- Nets, pins, and buses now support the width property.
- Indexing with brackets now works equivalently for pins, nets, and buses.
- Grouped part pins (such as address and data buses) can now be accessed using a slice-like notation, e.g. memory['ADDR[0:7]'].
- Matching of pin lists now begins with normal string matching before using regexes.
- Added more tests and fixed existing tests.
- Selecting part pins now looks for exact match before falling back to regex matching.
- PySpice now needs to be manually installed to perform SPICE simulations.
- SPICE simulations of subcircuits (.SUBCKT) now supported.
- Improvements/additions to the library of supported SPICE parts.
- SPICE simulations of circuits now supported (Python 3 only).
- Modularized code into separate files.
- Parsing of KiCad EESchema libraries made more robust.
- DEFAULT_TOOL replaced with set_default_tool() function.
- Some code simplification by using a context manager for opening files.
- Testing made more robust.
- KiCad netlists are now parsed using the external package kinparse.
- Cleaned-up pylint-identified issues.
- Removed absolute file paths to libraries from tests.
- Fixed problem where the search function was only returning parts found in the last library searched.
- Use of builtin now works with Python 2 & 3.
- Started using namedtuple in some places (like net traversal) for clarity.
- Corrected pin-to-pin connections so if a net is created, it goes into the same Circuit the pins are members of.
- Part templates can now contain a reference to a Circuit object that will be applied when the template is instantiated.
- When pins are connected to nets, or nets to nets, the resulting set of connected nets are all given the same name.
- Buses are not added to a Circuit object if they are already members of it. This fix caused the next problem.
- Buses weren't getting added to the Circuit object because they already contained a reference to the Circuit. Fixed by clearing ref before adding to Circuit.
- Created mini_reset() method to clear circuitry without clearing library cache so the libraries don't have to be loaded again (slow).
- search() utility now prints the names of libraries as they are searched so user sees progress.
- Fixed exceptions if part definition contained non-unicode stuff.
- Hide exceptions that occur when using the show() utility.
- More tests added for NC nets and hand-crafted parts.
- default_circuit and the NC net for the active circuit are now made accessible in all modules using __builtin__.
- Corrected error messages that referenced wrong/non-existing variable.
- Inserted NO_LIB for the library if it doesn't exist when generating KiCad netlists or XML.
- Attributes can now be passed when creating a Circuit object.
- Pins are now associated with part when added to the part.
- Minimum and maximum pins for a part are now computed as needed.
- Each Circuit object now has its own NC net.
- Added tests for bus movement and copying.
- Implemented bus movement between Circuit objects.
- Additional test cases were created.
- Nets and Parts can now be removed from Circuits.
- The circuit that pins and nets are in is now checked before connections are made so cross-circuit connections are not created.
- Default members were added to Pin and Part objects so they would always exist and not cause errors when missing.
- Implemented moving Parts and Nets from one circuit to another (almost).
- Nets with no attached pins are now added to a circuit.
- Re-wrote some tests to account for the presence of no-pin nets in a circuit.
- A class method was missing its 'self' argument.
- Fixed @subcircuit decorator so it won't cause an error if the function it decorates doesn't have a 'circuit' keyword argument.
- Split the unit tests across multiple files. Added setup/teardown code.
- Added capability to create multiple, independent Circuit objects to which Parts and Nets can be assigned. The default circuit is still the target if not Circuit is explicitly referenced.
- Added IOError to exception list for opening a SKiDL part library.
- Part libraries in SKiDL format are now supported.
- Parts can now be created on-the-fly and instantiated or added to libraries.
- The parts used in a circuit can be stored in a backup SKiDL library and used if the original libraries are missing.
- The KiCad standard part libraries were converted to SKiDL libraries and placed in skidl.libs.
- Nets without pins can now be merged.
- Parts and Pins are now sorted when netlists are generated.
- For an existing Bus, new bus lines can be inserted at any position or the bus can be extended.
- Use getattr() instead of __class__.__dict__ so that subclasses of SKiDL objects can find attributes named within strings without searching the __mor__.
- skidl_to_netlist now uses templates.
- Default operation of search() is now less exacting.
- Traceback is now suppressed if show() is passed a part name not in a library.
- Lack of KISYSMOD environment variable no longer causes an exception.
- requirements.txt file now references the requirements from setup.py.
- Changed setup so it generates a pckg_info file with version, author, email.
- Fixed error caused when trying to find script name when SKiDL is run in interactive mode.
- Silenced errors/warnings when loading KiCad part description (.dcm) files.
- SKiDL now searches for parts with a user-configurable list of library search paths.
- Part descriptions and keywords are now loaded from the .dcm file associated with a .lib file.
- SKiDL scripts can now output netlists in XML format.
- Added command-line utility to convert netlists into SKiDL programs.
- Changed the link to the documentation.
- First release on PyPI.