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647 Commits

Author SHA1 Message Date
Scott Shawcroft
b5a9ed3688
Merge pull request #2161 from jepler/nrf-analog-reference 
nRF: Change analog reference voltage
 2019-09-17 09:41:52 -07:00
jepler
d39c85e3f5 nRF: Change analog reference to VCC(/4) 
@ladyada says:
"having this be adjustable (reference) would be ideal cause you can get
absolute voltages but for now, VCC/4 + 4x matches every other chip :)"

... and indeed doing it this way happens to give a much more steady
reading when using a VCC-referenced resistance, and so many of the simple
things you'd wire up are actually VCC-referenced anyway.
 2019-09-16 21:43:07 -05:00
Jeff Epler
c56186da8c nRF: Change analog reference voltage 
Datasheet reading explains one reason why readings might have been 10% low.
 2019-09-16 18:35:48 -05:00
jepler
df48312ce7 nRF: PWMOut: At deinit, make pin available again 
Closes: #2146
 2019-09-11 20:09:38 -05:00
jepler
7b9dfc9952 nrf: i2s: tune audio buffering 
.. based on some tasks I found that caused stuttering:

 # Test SD and printing
 while True: os.listdir('.')

 # Test bulk I/O
 while True: len(open('somefile.wav', 'rb').read())

Each of these tasks *WAS* worse and I am improving them in a separate
PR by adding RUN_BACKGROUND_TASKS to them.
 2019-09-09 20:13:12 -05:00
jepler
c66f5a8536 nrf: i2s: rewrite without 'goto' 2019-09-09 19:26:18 -05:00
jepler
fe9605a6a3 nrf: i2s: Comment this slightly tricksy code 2019-09-09 19:25:52 -05:00
jepler
ccf08aa3df nrf: I2SOut: deal more gracefully with errors from the sample 2019-09-08 21:59:07 -05:00
jepler
f38ee42874 nrf: Add i2s audio output 
Testing performed: I used a Particle Xenon with a HDA1334 I2S DAC.
I played a variety of mono 16-bit samples at 11025 and 22050Hz nominal
bit rates.  With this setup, all the 11025Hz samples sound good.
I tested play, pause,  and loop functionality.

During some runs with 22050Hz samples, there were glitches.  However,
these may have only occurred during runs where I had set breakpoints
and watchpoints in gdb.

I also tested with a MAX98357A I2S amplifier.  On this device, everything
sounded "scratchy".  I was powering it from 5V and the 5V rail seemed
steady, so I don't have an explanation for this.  However, I haven't
tried it with a SAMD board.
 2019-09-08 16:46:35 -05:00
Dan Halbert
3c22c690c8 CPB A1 pin mapping wrong; remove A7 2019-09-06 14:17:11 -04:00
sommersoft
b1c3d47413 Merge branch 'master' of https://github.com/adafruit/circuitpython into mixer_voice 2019-09-01 21:16:12 -05:00
sommersoft
8120f5cdad Merge branch 'master' of https://github.com/adafruit/circuitpython into mixer_voice 2019-08-29 22:14:53 -05:00
Dan Halbert
7a64af9280 rename bleio module to _bleio 2019-08-29 18:44:27 -04:00
Dan Halbert
b11b7916fd address minor issues: typos, make translate, and sphinx 2019-08-29 17:58:21 -04:00
Dan Halbert
f17059b10b another API rework: less abstraction leakage 2019-08-28 23:15:22 -04:00
Dan Halbert
19c59b41ed bleio: API change to create and connect related objects simulatenously: no orphan bleio objects 2019-08-28 16:15:09 -04:00
Dan Halbert
a72bcab0fd Merge remote-tracking branch 'adafruit/master' into bleio-api-revamp 2019-08-28 16:09:18 -04:00
Dan Halbert
0364f1dc85 remove some debugging prints 2019-08-26 08:17:59 -04:00
Dan Halbert
76446f634b BLE HID WIP: works everywhere except iOS; fixed a bunch of bugs; pretend bonding 2019-08-25 21:38:13 -04:00
sommersoft
2e4b687ba5 enable audiomixer on nrf 2019-08-25 07:32:48 -05:00
Scott Shawcroft
7324b70a7c
Rework based on Dan's review 2019-08-23 15:27:21 -07:00
Scott Shawcroft
2497cbe186
Fix nrf builds 2019-08-22 14:23:33 -07:00
Scott Shawcroft
36a23e0fe3
Rework refresh API and factor common display stuff out 
NOT TESTED! Just compiles

Fixes #1691
 2019-08-22 14:23:27 -07:00
Scott Shawcroft
c247e7df9c
Begin refresh rework. 2019-08-22 14:08:33 -07:00
Benny Meisels
d37dd4d758
Updated ParallelBus implementation in nrf port 2019-08-22 14:08:33 -07:00
Dan Halbert
7cc15e56c8 make translate 2019-08-22 15:20:23 -04:00
Dan Halbert
0b7291d767 fix default crystal value; fix include order 2019-08-22 09:01:05 -04:00
Dan Halbert
acc6df4959 merge similar fix in 2019-08-22 01:29:34 -04:00
Dan Halbert
d94023e9b3 Fix CPBlue LFCLKSRC; CPB has no status neopixel 2019-08-22 01:04:00 -04:00
Scott Shawcroft
389e7cc35d
Merge pull request #2072 from bmeisels/nrf-no-crystal-support 
Add support for nrf boards that don't have an external crystal
 2019-08-21 13:01:26 -07:00
Benny Meisels
fe2ec6c887 Add support for nrf boards that don't have an external crystal 2019-08-20 23:30:21 +03:00
Dan Halbert
e00696de7f merge from upstream and make translate 2019-08-20 13:06:23 -04:00
Dan Halbert
44b28d1187 update tinyusb to 00c440cb 2019-08-19 19:42:45 -04:00
Dan Halbert
e3dc5e3a66 Merge remote-tracking branch 'adafruit/master' into run-background-tasks 
Restore dependencies indicated by indentation in circuitpy_mpconfig.h.
 2019-08-19 12:41:20 -04:00
Jeff Epler
26a05d01dc Merge remote-tracking branch 'origin/master' into nrf-pdm-audioin 2019-08-18 21:30:14 -05:00
Jeff Epler
912fd7759d nrf: PDMIn: Implement 
So far, this supports only 16kHz and 16-bit samples with a fixed gain.
This is enough to support the basic functionality of e.g., sensing
ambient audio levels.
 2019-08-18 15:58:04 -05:00
Jeff Epler
79f8a85786 nrf: stub out audiobusio.PDMIn, audiobusio.I2SOut 2019-08-18 15:55:57 -05:00
Dan Halbert
3f7321af00
Merge pull request #2031 from jepler/nrf-lto 
Enable link-time optimization for nrf targets
 2019-08-18 12:35:26 -04:00
Dan Halbert
e2a4c76a37 make nrf touchio be generic: now available for SAMD51 too 2019-08-18 08:44:10 -04:00
Scott Shawcroft
85d7398476
Merge pull request #2066 from dhalbert/ble-pairing 
BLE: more features
 2019-08-16 14:50:00 -07:00
Dan Halbert
630c92392a address review comments; avoid calling common_hal_bleio_device... routines from shared-bindings 2019-08-16 15:18:53 -04:00
Dan Halbert
5877bd6036 CPblue initial definition 2019-08-13 22:12:36 -04:00
Jeff Epler
11dd3a260e nrf: Use RUN_BACKGROUND_TASKS 2019-08-11 08:53:02 -05:00
Dan Halbert
1570ef2dd4 specifying attribute length; fix up value setting 2019-08-07 23:49:09 -04:00
Dan Halbert
d047b73a9c fix newly-introduced bugs; UART client/server working again 2019-08-07 11:10:21 -04:00
Dan Halbert
d74c8b9425 WIP: more Descriptor work; refactor gattc/gatts read/write 2019-08-06 22:55:25 -04:00
Dan Halbert
243334da75 Merge remote-tracking branch 'adafruit/master' into ble-pairing 2019-08-05 23:06:24 -04:00
Scott Shawcroft
59efce3035
Merge pull request #2039 from dhalbert/metro-52840 
Metro nRF52840 rev A defn; remove '#define FEATHER52840' from mpconfigboard.h
 2019-08-05 18:48:36 -07:00
Scott Shawcroft
b675a27e16
Merge pull request #2000 from jepler/nrf-pwm-audio 
Implement PWM audio out for the nrf port
 2019-08-05 17:26:27 -07:00
Dan Halbert
c56566179a Metro nRF52840 rev A defn; also remove '#define FEATHER52840' from mpconfigboard.h files 2019-08-05 18:10:27 -04:00