suspect-devices/circuitpython/atmel-samd/common-hal/nativeio/SPI.c, branch encodingCircuitPython - a Python implementation for teaching coding with microcontrollershttps://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=encoding2017-04-10T20:32:19+00:00Split up nativeio.2017-04-10T20:32:19+00:00Scott Shawcroftscott.shawcroft@gmail.com2017-04-10T20:32:19+00:00urn:sha1:f28f8ba56809fd56e777eabceae21127f95b89ed
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.
Switch exception throwing to mp_raise helpers. It saves a little code space each time to share the call.2017-02-24T14:13:07+00:00Scott Shawcroftscott.shawcroft@gmail.com2017-02-24T14:13:07+00:00urn:sha1:12fa5b3a66d6f0034113a56c7d647c7bac5be74catmel-samd: Save a little space by tweaking error messages.2017-02-19T16:24:15+00:00Scott Shawcroftscott.shawcroft@gmail.com2017-02-19T16:24:15+00:00urn:sha1:a5a41d7163e62918133cb79f4e0c6847bfbd023aSPI tweaks for SD Cards:2017-02-10T13:09:17+00:00Scott Shawcroftscott.shawcroft@gmail.com2017-01-21T00:52:53+00:00urn:sha1:370d1dec888e661d2cc23d38bb444d95d8d2a141
* 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.
Add frequency changing support to PWMOut.2017-01-30T23:02:01+00:00Scott Shawcroftscott.shawcroft@gmail.com2017-01-27T02:05:46+00:00urn:sha1:e3f9ee839afb5a369779a30a96214c929e76911e
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.
atmel-samd: Add preliminary support for UART2016-12-19T21:03:50+00:00Sebastian Plamaueroeplse@gmail.com2016-10-31T19:18:39+00:00urn:sha1:1598e44231a9ea2dbf20f487fcd05ded90e80d9aatmel-samd & esp8266: Make sure pins are not already in use.2016-12-07T23:21:14+00:00Scott Shawcroftscott.shawcroft@gmail.com2016-12-06T18:31:38+00:00urn:sha1:0ae344841ff048424b886e1f386b16c0c9ba4ee2
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.
Add try_lock and unlock to I2C and SPI classes to make sure things2016-12-02T23:46:12+00:00Scott Shawcroftscott.shawcroft@gmail.com2016-11-30T23:08:34+00:00urn:sha1:26229efe78f6c5f8598d6f9f1b2261c5a84d7a7b
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
atmel-samd: Slim down the pin struct to save ~1200 bytes.2016-12-01T21:47:18+00:00Scott Shawcroftscott.shawcroft@gmail.com2016-12-01T21:47:18+00:00urn:sha1:03f49f8209e9a35524864960c3c90db5343b35b3shared-bindings: Make MOSI and MISO optional for SPI.2016-11-30T00:54:20+00:00Scott Shawcroftscott.shawcroft@gmail.com2016-11-30T00:54:20+00:00urn:sha1:9b3afc7b375da6d820917fc912b88f92a5ef9873