Commit Graph

58 Commits

Author SHA1 Message Date
Scott Shawcroft 3f5028c666 atmel-samd: Support wav file playback. Tested up to 16bit 22.1khz. Must be mono file!
SD card support may work but likely needs buffer tuning. Its untested.

Fixes #105
2017-05-15 19:52:38 -07:00
Scott Shawcroft ef1a4847b3 shared-bindings: Correct PulseIn.resume to match docs. Fixes #125 2017-05-08 11:14:23 -07:00
Scott Shawcroft 58b9789d0c atmel-samd: Introduce audio sample playback via audioio.AudioOut. 2017-05-01 13:10:03 -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 b653c3c8fc Correct PulseOut example code 2017-04-13 17:52:13 -07:00
Scott Shawcroft 4a4f29b8f9 atmel-samd: Rework status LED implementation
* Track status pin use by user code separately so it can take over the pins and then give them back.
* Switch to hardware SPI for APA102 on Gemma and Trinket.
* Merge microcontroller/types.h into microcontroller/Pin.h to better match approach going forwards.
2017-04-12 15:24:50 -07:00
Scott Shawcroft f28f8ba568 Split up nativeio.
This was done to allow greatly granularity when deciding what functionality
is built into each board's build. For example, this way pulseio can be
omitted to allow for something else such as touchio.
2017-04-10 13:32:19 -07:00
Scott Shawcroft ff208d7677 Add low-level OneWire support class.
This class focuses on the timing sensitive parts of the protocol.
Everything else will be done by Python code.

This also establishes that its OK to back a nativeio class with a
bitbang implementation when no hardware acceleration exists. When
it does, then bitbangio should be used to explicitly bitbang a
protocol.
2017-03-25 12:04:49 +00:00
Scott Shawcroft 7cb54864aa Add PulseIn support which can be used to measure a series of pulse widths.
This is useful for infrared input and DHT sensors.
2017-03-24 10:30:15 +00:00
Scott Shawcroft d200a62164 Add PulseOut which can pulse a PWMOut for IR remote transmission. 2017-03-10 19:17:54 +01:00
Scott Shawcroft bccfbe4e00 Fix duty_cycle constructor argument to PWMOut. 2017-03-10 18:55:17 +01:00
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 3891dde7ff shared-bindings: Reenable struct_time. It was turned off when playing with LTO and never re-enabled. 2017-03-07 12:47:26 +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 d598c2a919 atmel-samd: Add USB HID mouse and keyboard support. 2017-02-27 15:43:58 +01:00
Scott Shawcroft 062fac1d43 atmel-samd: Use link time optimization to reduce code size of builds which
share space with the file system.

"Express" builds with SPI flash crash the compiler for some reason so its
currently disabled for them.
2017-02-26 01:00:33 +01:00
Scott Shawcroft baf3ff377e Make more type structures const to save RAM. 2017-02-24 15:23:26 +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 75d0b02b3f Throw an error when sleep time is negative. 2017-02-22 20:41:00 +01:00
Scott Shawcroft 4c05086661 Check that neopixel write is actually given a DigitalInOut. 2017-02-22 20:10:10 +01:00
Scott Shawcroft f0b62a2b0e Save space by only supporting 800khz neopixels. 2017-02-19 17:22:42 +01:00
Scott Shawcroft 710b5d8aff Two I2C fixes:
1) Bus error will be thrown on read/write errors with errno set. (Read didn't used to fail at all.)
2) try_lock correctly returns boolean whether lock was grabbed.

Fixes #87
2017-02-19 17:02:29 +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 d67968e3c3 Add print support to Pin. #83 #76 2017-02-19 14:23:29 +01:00
Scott Shawcroft 3dda38c8ab Fix pin free check to ignore None objects. Fixes #89 2017-02-19 12:59:31 +01:00
Scott Shawcroft 1a3bd67833 nativeio.SPI: Remove extraneous constructor args because they are in configure. 2017-02-19 12:57:00 +01:00
Scott Shawcroft 370d1dec88 SPI tweaks for SD Cards:
* Always init SPI to 250k to start for SD cards.
* Add ability to configure byte written during read.
* Add ability to read and write to portions of buffers like existing I2C API.
2017-02-10 05:09:17 -08:00
Scott Shawcroft 9f6da7b2fe Add more PWMOut examples and rename the duty constructor argument
to duty_cycle so that its consistent with the attribute.

Fixes #84
2017-02-01 15:07:31 -08:00
Scott Shawcroft e3f9ee839a Add frequency changing support to PWMOut.
You can either set it once up front, or set variable_frequency on custruction to
indicate that the frequency must be able to change. This informs whether a timer
can be shared amongst pins.

This also adds persistent clock calibration on atmel-samd. Once the device has
synced its clock frequency over USB it will remember that config value until USB
is used again. This helps ensure the clock frequency is similar on and off USB.

Lastly, this also corrects time.sleep() when on USB by correcting the tick counter.
2017-01-30 15:02:01 -08:00
Scott Shawcroft d239dbdc28 More fixes to pin pull thanks to jerryn:
* Correct atmel-samd pin pull state.
* Correct conversion from python pull objects to C enum.
2017-01-16 15:32:23 -08:00
Scott Shawcroft df96823dee Fix pull kwarg DigitalInOut.switch_to_input and add example use to docs.
Thanks to jerryn from the Adafruit Forum for finding the bug!
2017-01-16 10:35:46 -08:00
Scott Shawcroft cea5503ca0 Fixup warnings from merge about undefined macro values, switch to
VM keyboard exception and switch to FATFS reader.
2017-01-12 12:46:18 -08:00
Scott Shawcroft 161ab018ba Correct monotonic.
Fixes #69.
2017-01-08 22:10:33 -08:00
Scott Shawcroft 63681a736a Link to the Bus Device docs. 2017-01-05 18:43:22 -08:00
Scott Shawcroft 7c302c395e Improve docs and update to CircuitPython. 2017-01-05 16:20:46 -08:00
Scott Shawcroft e52fbf2e6a Add time.struct_time support. 2017-01-05 14:00:48 -08:00
Scott Shawcroft f48d2df634 atmel-samd: Improve TouchIn to allow for multiple simultaneous touch pads. 2016-12-20 16:39:32 -08:00
Scott Shawcroft 427d33c706 atmel-samd: Add help() and remove mem_info functions from smallest builds to make room. 2016-12-19 16:38:35 -08:00
Sebastian Plamauer 1598e44231 atmel-samd: Add preliminary support for UART 2016-12-19 13:03:50 -08:00
Scott Shawcroft 781633c716 Fix up Analog classes: unify them at 16 bits and adds reference_voltage member
to make for easy conversion. Fixes #14.
2016-12-13 16:09:00 -08:00
Scott Shawcroft 3972bc19c7 atmel-samd: Basic capacitive touch button support.
Currently only works on a single channel and is only enabled for boards with
SPI flash. Only really designed for hardware testing at this point.
2016-12-12 15:11:25 -08:00
Scott Shawcroft 0ae344841f atmel-samd & esp8266: Make sure pins are not already in use.
This prevents corrupting previous functional objects by stealing their pins
out from under them. It prevents this by ensuring that pins are in default
state before claiming them. It also verifies pins are released correctly and
reset on soft reset.

Fixes #4, instantiating a second class will fail.
Fixes #29, pins are now reset too.
2016-12-07 15:21:14 -08:00
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 8ef0dd095a Fix two bugs found by clang:
* PWMOut enter and exit weren't hooked up.
* end couldn't be negative in I2C.
2016-12-01 10:33:50 -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 16764dfa31 shared-bindings: Fix blinky example. Fixes #55 2016-11-29 14:37:25 -08:00
Scott Shawcroft d2aa05a9fe shared-bindings: Stop using negative length at all. Having uint and int mixed is confusing. 2016-11-28 19:57:05 -08:00
Scott Shawcroft bda6ee9a14 shared-bindings: Stop using max and min because C doesn't define them. 2016-11-28 19:48:48 -08:00
Scott Shawcroft 78f8565270 Add start and end kwargs to writeto and readfrom_into so a single buffer can be used to save memory. 2016-11-28 18:35:19 -08:00