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17 Commits

Author SHA1 Message Date
dean 82b5efa7bc remove unnecessary comment 2018-05-09 15:14:26 -04:00
dean fba1e221c6 DM: add kwargs to bitbangio spi 2018-05-09 15:12:42 -04:00
dean 68309c3fac replace tabs with spaces 2018-02-05 10:44:29 -05:00
dean 0e13aba2fe DM: fix sytling 2018-01-30 17:45:04 -05:00
dean a7f72eb2d8 DM: added write_readinto to bitbangio 2018-01-30 17:18:57 -05:00
Dan Halbert 065e82015f merge from 2.2.0 + fix up board defs 2018-01-02 21:25:41 -05:00
Dan Halbert c478c10923 Do not allow a *io object to be used after deinit(). 
Fixes #278, #277, #276, #275.
 2017-10-03 12:07:17 -07:00
Scott Shawcroft 714521a4c7 shared-bindings: Update docs to remove with statements from examples but add more detail to the design guide about their use. 2017-06-07 14:39:12 -07:00
Scott Shawcroft 939c0045db Switch to a shared piece of code to compute start and length of a 
buffer from start, end and length. The old code miscomputed length
leading to writing and reading from memory past the end of the buffer.
Consolidating the code should make it easier to get right everywhere.
 2017-04-20 11:24:05 -07:00
Scott Shawcroft 4aaa0ea008 shared-bindings: Do a pass on the docs and make sure keyword only arguments make sense and are documented correctly. Fixes #109 2017-03-07 12:58:57 +01:00
Scott Shawcroft 7ecbc3a148 shared-bindings: Fix two more try_locks. Copy and paste failed me. 2017-02-28 12:31:27 +01:00
Scott Shawcroft 12fa5b3a66 Switch exception throwing to mp_raise helpers. It saves a little code space each time to share the call. 2017-02-24 15:13:07 +01:00
Scott Shawcroft e9659e61f8 Switch enum-like attributes to all caps and add print support for them. Make room for this functionality by adding a shared __enter__ function object. #76 2017-02-19 16:11:33 +01:00
Scott Shawcroft 26229efe78 Add try_lock and unlock to I2C and SPI classes to make sure things 
are shared well between threads and underlying MicroPython (SPI Flash
for example.)

It is recommended to use the bus device classes to manage the locks
and other transaction state.

https://github.com/adafruit/Adafruit_MicroPython_BusDevice

Fixed #58
Fixed #59
Fixed #60
 2016-12-02 15:46:12 -08:00
Scott Shawcroft 9b3afc7b37 shared-bindings: Make MOSI and MISO optional for SPI. 2016-11-29 16:54:20 -08:00
Scott Shawcroft 4933fa1c27 shared-bindings: Ensure pin objects are actually pins. 
Fixes #12
 2016-11-29 15:50:01 -08:00
Scott Shawcroft ccbb5e84f9 This introduces an alternative hardware API called nativeio structured around different functions that are typically accelerated by native hardware. Its not meant to reflect the structure of the hardware. 
Docs are here: http://tannewt-micropython.readthedocs.io/en/microcontroller/

It differs from upstream's machine in the following ways:

* Python API is identical across ports due to code structure. (Lives in shared-bindings)
* Focuses on abstracting common functionality (AnalogIn) and not representing structure (ADC).
* Documentation lives with code making it easy to ensure they match.
* Pin is split into references (board.D13 and microcontroller.pin.PA17) and functionality (DigitalInOut).
* All nativeio classes claim underlying hardware resources when inited on construction, support Context Managers (aka with statements) and have deinit methods which release the claimed hardware.
* All constructors take pin references rather than peripheral ids. Its up to the implementation to find hardware or throw and exception.
 2016-11-21 14:11:52 -08:00