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435 Commits

Author SHA1 Message Date
root
8d79d4e5ee Ensure pin is left low after PulseOut 2021-07-19 11:46:09 -05:00
microDev
3c25d8e2a0
Merge pull request #5013 from DavePutz/issue_5012 
Issue #5012 - RP2040 moved globals to PulseIn object to fix multiple instances
 2021-07-19 00:21:55 +05:30
root
43275e0b0d Made suggested changes (mostly) 2021-07-18 12:00:37 -05:00
microDev
9ac607dffa
update run-mode 
- add microcontroller.RunMode.UF2
- add UF2, NORMAL and BOOTLOADER run-modes to esp32s2
 2021-07-18 00:00:58 +05:30
root
1c80696746 iFix formatting 2021-07-16 17:18:06 -05:00
root
588a19a1ab Issue #5012 - Moved globals to PulseIn object to fix multiple instances 2021-07-16 15:59:08 -05:00
Scott Shawcroft
bba611336c
Merge pull request #4964 from DavePutz/issue_4937 
Fix for issue #4937 - Implement minimum PulseOut time
 2021-07-16 11:29:32 -07:00
root
eebddbb16d Change min pulse calculation 2021-07-15 21:27:23 -05:00
Scott Shawcroft
c2685970af
Merge pull request #4987 from DavePutz/issue_4983 
Fix for Issue #4983 - stop state machine before restarting
 2021-07-13 12:16:33 -07:00
root
5c9823d8cb Change order of operations in restart 2021-07-13 11:17:03 -05:00
root
490f263a41 Added code to reset SM program counter during a restart 2021-07-12 14:09:11 -05:00
root
9d5fbea7a3 Fix for Issue #4983 - stop state machine before restarting 2021-07-11 21:02:28 -05:00
root
0ea750b2d0 Fix handling of short pulses 2021-07-11 16:38:24 -05:00
Scott Shawcroft
58fdf9e940
Merge pull request #4975 from DavePutz/issue_4945 
Issue #4945 - handle multiple PulseIns
 2021-07-09 11:03:16 -07:00
root
4046b0fb0a Issue #4945 - handle multiple PulseIns 2021-07-08 14:09:21 -05:00
Dan Halbert
ab52a92704 Disallow ctrl-C interrupts of RP2040 SPI and PIO 2021-07-08 13:42:24 -04:00
Dan Halbert
bd6826496c Fix various RP2040 audio dma things: (see detailed commit message) 
1. Check for correct error values from dma_claim_unused_channel.
2. Introduce a .stereo flag for simplicity.
3. Clarify PWM carrier frequency choice.
4. Start introducing quiescent audio value. Still need to ramp up/down.
5. Redo audio stop logic a bit.
6. Fix (unrelated) displayio dependency things.

There is still an interference problem between other DMA users and audio. Still debugging this.
 2021-07-08 08:14:49 -04:00
root
f98ec0cfd6 Fix formatting 2021-07-06 14:43:46 -05:00
root
bfa777c55a Add check for timer success 2021-07-06 14:34:15 -05:00
root
b2e72b2912 fix formatting 2021-07-05 23:13:18 -05:00
root
6e4613f1a1 Fix formatting 2021-07-05 12:30:26 -05:00
root
9814386d2e Fix for issue #4937 - Implement minimum pulseout time 2021-07-05 11:38:05 -05:00
Dan Halbert
33bbb8b1f4 RP2040 PWMAudioOut: Release DMA channels after play has finished. 2021-07-01 17:36:29 -04:00
Scott Shawcroft
061d3a16ff
Merge pull request #4911 from DavePutz/issue_4908 
Fix for issue #4908 - pulseout leaving line high
 2021-06-24 15:32:48 -07:00
Dan Halbert
836db4e4a1
Merge pull request #4816 from hierophect/rp2040-alarms 
RP2040: add Alarm module
 2021-06-24 08:15:57 -04:00
root
ab1d7429f1 Fix for issue #4908 - pulseout leaving line high 2021-06-23 21:09:27 -05:00
Lucian Copeland
1f3d69d87c Clean up sleep memory, mark as not-implemented 2021-06-20 17:57:51 -04:00
Jeff Epler
268717e427 ParallelImageCapture: Switch to taking a list of pins 
.. adopting validate_pins from RGBMatrix into shared-bindings

.. updating other platforms for API change
 2021-06-10 11:15:18 -05:00
Lucian Copeland
63c1791d87 Merge remote-tracking branch 'upstream/main' into rp2040-alarms 2021-06-07 14:11:41 -04:00
Scott Shawcroft
bc014cecb5
Merge pull request #4859 from DavePutz/hcsr04_fix 
Fix pulsein pause and resume functions to handle HCSR04
 2021-06-04 13:26:05 -07:00
root
57334c812e Fix pulsein pause and resume functions to handle HCSR04 2021-06-04 12:10:41 -05:00
root
8761e4bfd7 Initialize pacing timer 2021-05-30 12:12:38 -05:00
root
a2b220370e Fix formatting issue 2021-05-29 12:26:41 -05:00
root
760e8c77bd Changes to correct repeat playing on a channel 2021-05-29 11:55:10 -05:00
Lucian Copeland
feff243e8f Add RTC deep sleep alarm support 2021-05-28 13:52:05 -04:00
Lucian Copeland
24041f34b0 Merge remote-tracking branch 'upstream/main' into rp2040-alarms 2021-05-27 18:40:40 -04:00
Lucian Copeland
8e1892ac6f Implement RP2040 Alarm module 
Adds light and deep sleep functionality for the TimeAlarm and PinAlarm
alarm categories. Adds board deinit for all platforms.
 2021-05-27 18:33:29 -04:00
root
24e641a834 Fix for Issue #4266 2021-05-25 16:06:00 -05:00
Scott Shawcroft
5643355e90
Merge remote-tracking branch 'adafruit/main' into simplify_status_led 2021-05-20 08:35:15 -07:00
root
9393467819 Update comment for spelling 2021-05-17 22:13:00 -05:00
root
ff4b1b28d2 iFormatting fixes 2021-05-17 16:43:55 -05:00
root
11ef36d09d Implement pulseout for RP2040 2021-05-17 16:24:45 -05:00
Scott Shawcroft
1a0b4193b7
Simplify the status LED to save power 
This also removes the need to pin share because we don't use the
status LED while user code is running.

The status flashes fallback to the HW_STATUS LED if no RGB LED is
present. Each status has a unique blink pattern as well.

One caveat is the REPL state. In order to not pin share, we set the
RGB color once. PWM and single color will be shutoff immediately but
DotStars and NeoPixels will hold the color until the user overrides
it.

Fixes #4133
 2021-05-13 14:41:20 -07:00
Jeff Epler
da19e8e2d7 Merge remote-tracking branch 'origin/main' into fix-codeformat-subdirs 2021-04-30 15:31:08 -05:00
Jeff Epler
e95e921ca1 codeformat: Fix filename matching 
In #4683, tannewt noticed that uncrustify was not running on some
file in common-hal.

I investigated and found that it was not being run on a bunch of paths.

Rather than make incremental changes, I rewrote list_files to work
bsaed on regular expressions; these regular expressions are created from
the same git-style glob patterns.

I spot-checked some specific filenames after this change, and all looks good:

```
$ python3 tools/codeformat.py -v --dry-run tests/basics/int_small.py ports/raspberrypi/common-hal/pulseio/PulseIn.c extmod/virtpin.c tests/thread/thread_exit1.py  ports/raspberrypi/background.h extmod/re1.5/recursiveloop.c
tools/codeformat.py -v --dry-run tests/basics/int_small.py ports/raspberrypi/common-hal/pulseio/PulseIn.c extmod/virtpin.c tests/thread/thread_exit1.py ports/raspberrypi/background.h extmod/re1.5/recursiveloop.c
uncrustify -c /home/jepler/src/circuitpython/tools/uncrustify.cfg -lC --no-backup extmod/virtpin.c ports/raspberrypi/background.h ports/raspberrypi/common-hal/pulseio/PulseIn.c
black --fast --line-length=99 -v tests/thread/thread_exit1.py
```
recursiveloop and int_small are excluded, while PulseIn, virtpin,
and background are included.

Testing running from a subdirectory (not _specifically_ supported though):
```
(cd ports && python3 ../tools/codeformat.py -v --dry-run raspberrypi/common-hal/pulseio/PulseIn.c ../extmod/virtpin.c)
../tools/codeformat.py -v --dry-run raspberrypi/common-hal/pulseio/PulseIn.c ../extmod/virtpin.c
uncrustify -c /home/jepler/src/circuitpython/tools/uncrustify.cfg -lC --no-backup ../extmod/virtpin.c raspberrypi/common-hal/pulseio/PulseIn.
```

As a side-effect, a bunch more files are re-formatted now. :-P
 2021-04-30 10:48:08 -05:00
DavePutz
1ec59cd534
Fix up indentation 2021-04-29 12:38:13 -05:00
root
cfac07c1cc Wrap pulsein when maxlen is exceeded 2021-04-28 11:20:13 -05:00
Scott Shawcroft
f99deeda68
Merge pull request #4668 from DavePutz/issue_4659 
Increased possible pulsein length to ~65 ms.
 2021-04-27 11:01:51 -07:00
root
91739de71a Increased max pulse to 65535 us 2021-04-26 18:52:15 -05:00
root
5bd1da21a2 Increased possible pulsein length to 32 ms. 2021-04-25 21:38:57 -05:00
Jeff Epler
92919c25c2
Merge pull request #4666 from DavePutz/issue_4660 
Reset buffer index in PulseIn clear
 2021-04-25 20:33:58 -05:00
root
d1861a6b9c Reset buffer index in PulseIn clear 2021-04-25 14:24:21 -05:00
gamblor21
30f31639d3 Added statemachine deinit 2021-04-25 11:58:22 -05:00
Dan Halbert
80f05c76a8
Merge pull request #4654 from dhalbert/6.2.x-merge-1 
Port #4645 to main
 2021-04-24 10:29:52 -04:00
Dan Halbert
454e78f41f merge #4645 from 6.2.x to main 2021-04-23 13:33:58 -04:00
Jeff Epler
f838ff9528 raspberrypi: Remove debug prints 2021-04-23 09:44:01 -05:00
Jeff Epler
10fee3e673 raspberrypi: Increase PIO clock speed in ParallelImageCapture 
.. this allows DIV_4 and DIV_2 resolutions to work without being
jumbled.
 2021-04-22 12:14:44 -05:00
Jeff Epler
2def016fd0 raspberrypi: Use 32-bit elements in FIFO 
.. these do come in the right
 2021-04-22 12:14:03 -05:00
Jeff Epler
7fb751808f raspberrypi: Implement ParallelImageCapture using PIO 
.. based on code from Phil B.
 2021-04-22 12:02:51 -05:00
Dan Halbert
b3ffb3ab1f Return bytes written from RP2040 UART.write() 2021-04-21 18:38:35 -04:00
Dan Halbert
61e33a5619 fix nrf ISR; make direction consistent across ports; save code size 2021-04-09 11:07:47 -04:00
Jeff Epler
3ce0b512f8 rasberrypi: IncrementalEncoder: factor out state machine 2021-04-08 16:25:47 -05:00
Jeff Epler
1a2ce27b73 raspberrypi: Drop support for auto-reversing swapped encoder 2021-04-06 09:22:59 -05:00
Jeff Epler
fc86475de5 IncrementalEncoder: support swapped pins 
Closes: #4422
 2021-04-04 13:49:50 -05:00
Jeff Epler
93d6ceedd9 IncrementalEncoder: Disconnect interrupt handler during deinit. 
Closes: #4557
 2021-04-04 13:49:41 -05:00
Jeff Epler
bcd90dd927 IncrementalEncoder: There are no out pins. 
Closes #4556
 2021-04-04 13:49:21 -05:00
Phil Howard
b8d4f9655f RP2040: Only bitbang 0-byte writes 
The I2C.c for RP2040 included a special case for writes <=2 bytes to match the MicroPython implementation,
however RP2040 does support 1 and 2 byte reads, with only 0 bytes being the exception.

Signed-off-by: Philip Howard <phil@pimoroni.com>
 2021-03-17 16:25:54 +00:00
gamblor21
3b01a65743 Fixed formatting 2021-03-16 08:14:49 -05:00
Mark
e326d7ca80
Merge branch 'main' into rp_dp_parallel 2021-03-15 20:00:13 -05:00
Scott Shawcroft
f7a988b9b3
Merge pull request #4405 from DavePutz/issue_4237 
Issue 4237 - Changed initial setting in program_struct
 2021-03-15 17:51:36 -07:00
microDev
a52eb88031
run code formatting script 2021-03-15 19:27:36 +05:30
root
9a83501982 Fixed initial settings for program_struct to allow more than 1 program per pio 2021-03-14 15:05:56 -05:00
Scott Shawcroft
1b106de4e0
Merge pull request #4262 from DavePutz/issue_4111 
Issue 4111 - Implement pulseio(pulsein) for RP2040
 2021-03-12 16:48:57 -08:00
DavePutz
96ce43e6d6
Added the correct files 2021-03-12 16:18:33 -06:00
DavePutz
6628f49852
Use StateMachine.c interrupt setup and simplify SM program 2021-03-12 16:06:57 -06:00
gamblor21
307d2a99fe Fix after rebase 2021-03-11 20:06:50 -06:00
gamblor21
5689307798 Changed frequency to match PIO having 2 instructions 2021-03-11 19:32:44 -06:00
gamblor21
b02b1e9979 Set frequency default 60Mhz 2021-03-11 19:32:44 -06:00
gamblor21
1658fe04f9 Set the statemachine to never reset so REPL works 2021-03-11 19:32:44 -06:00
gamblor21
c384ebe5c0 Updated to initalize pindirs 2021-03-11 19:32:44 -06:00
gamblor21
56a219911f Add frequency support to parallel bus 2021-03-11 19:32:43 -06:00
gamblor21
b080d6207b Removing debug info and clean up 2021-03-11 19:32:43 -06:00
gamblor21
c6aaab6f64 Initial commit 2021-03-11 19:32:43 -06:00
Jeff Epler
16bfe3b41c raspberrypi: RTC: Ensure a time is set 
Until a time is set, the RTC is not running, and rtc_get_datetime()
returns false without assigning to the out-parameter.

In CircuitPython, this would manifest as arbitrary values being returned,
since uninitialized storage on the stack was being converted into a timestamp.
 2021-03-10 20:20:40 -06:00
DavePutz
a3c3e8a0fa
fix trailing whitespace 2021-03-09 22:41:08 -06:00
DavePutz
0c58cc4772
Moved pin wait to an initial exec 2021-03-09 16:37:29 -06:00
DavePutz
f0e3274a33
Update to agree with modified StateMachine.h 2021-03-09 11:13:09 -06:00
DavePutz
6f4510d7aa
Merge branch 'main' into issue_4111 2021-03-08 23:28:21 -06:00
root
576da73a17 Added check for maxlen 2021-03-08 23:23:51 -06:00
root
95b7a59156 Merge branch 'issue_4111' of https://github.com/DavePutz/circuitpython into issue_4111 2021-03-08 23:22:05 -06:00
root
3db0fec267 Added check for maxlen 2021-03-08 23:20:57 -06:00
DavePutz
88650bc4d0
Removed leftover debug code 2021-03-08 22:48:57 -06:00
Jeff Epler
2ae1e7de61 WIPrp2040: Implement IncrementalEncoder 
Any two consecutive pins can be used for an IncrementalEncoder

Testing performed: Put a synthesized (few hundred counts per second) quadrature signal into GP2/3 and read the encoder out.  Performed filesystem operations at the same time to stress test it.

The reasons for not using common_hal_rp2pio_statemachine_readinto are commented on.
 2021-03-05 10:31:29 -06:00
DavePutz
a4dda3a5ba
Merge branch 'main' into issue_4111 2021-03-04 14:38:00 -06:00
DavePutz
c5c297d2c0
Update PulseOut.c 2021-03-04 13:53:19 -06:00
DavePutz
b7f03f9487
Update PulseOut.h 2021-03-04 13:52:40 -06:00
DavePutz
2d941b070f
Changed interrupt to per-word basis; cleaned up other small items 2021-03-04 13:51:46 -06:00
Jeff Epler
bc14ed31f6 StateMachine.h: Add header for declaration of mcu_pin_obj_t typedef 2021-03-04 12:28:46 -06:00
Jeff Epler
c023ec03ff PDMIn: Add missing deinit call 2021-03-04 12:28:06 -06:00
Jeff Epler
bd01d31542 rp2pio: Add pins_are_sequential 
This can be used where the standard API calls for a list of pins, to check that they satisfy the requirements of the rp2pio state machine, e.g.,
```python
    def __init__(self, pin_a, pin_b):
        if not rp2pio.pins_are_sequential([pin_a, pin_b]):
            raise ValueError("Pins must be sequential")
```
 2021-03-04 11:26:33 -06:00
Jeff Epler
ff62b0d2c0 StateMachine: Add pull up/down for inputs 2021-03-04 11:26:29 -06:00
Jeff Epler
68ac14b309 StateMachine: Add in_available property 
I named the property `in_available` because it is similar to pyserial.
However, it indicates the number of words in the fifo, not the number
of bytes.
 2021-03-04 11:14:09 -06:00
Dan Halbert
cd48c5ee83
Merge pull request #4315 from dhalbert/rp2040-i2c-short-writes 
RP2040: Implement short I2C writes (2 bytes or less) using bitbangio
 2021-03-03 12:42:47 -05:00
DavePutz
ced707ed32
Update call to rp2pio_statemachine_construct 2021-03-03 10:55:08 -06:00
Scott Shawcroft
514b73bcf8
Merge pull request #4254 from gamblor21/rp2040_countio 
Rp2040 countio
 2021-03-03 08:47:24 -08:00
Scott Shawcroft
1d8933dd05
Merge pull request #4265 from DavePutz/pio_soft_reset 
Clear out PIOs and State Machines on RP2040 soft reset
 2021-03-03 08:43:57 -08:00
Dan Halbert
fb7a0f7efc add 1sec timeouts for I2C read and write 2021-03-03 09:43:57 -05:00
gamblor21
98075c5255 Fixed merge 2021-03-02 22:32:59 -06:00
Dan Halbert
e3ab394cd6 works on nearly all sensors 2021-03-02 23:27:37 -05:00
DavePutz
6046d37f31
Update PulseIn.c 2021-03-02 21:23:45 -06:00
Mark
37ee18349f
Merge branch 'main' into rp2040_countio 2021-03-02 19:47:53 -06:00
gamblor21
4246cc3f6d Counter and PWMOut slice conflict check 2021-03-02 19:32:06 -06:00
Jeff Epler
efc2667b5f
Merge pull request #4186 from jepler/update-protomatter-rp2 
Enable protomatter on RP2040 builds
 2021-03-02 19:01:37 -06:00
Dan Halbert
f31b472309 Merge remote-tracking branch 'adafruit/main' into rp2040-i2c-short-writes 2021-03-02 15:17:12 -05:00
Dan Halbert
9939c59caa wip 2021-03-02 15:16:55 -05:00
Scott Shawcroft
ce70b95990
Merge pull request #4177 from microDev1/nvm-rp 
RP2040: Support for NVM
 2021-03-02 09:57:36 -08:00
microDev
b029031286
minor structural modification 2021-03-02 14:36:28 +05:30
Jeff Epler
4b63a8c9b4 rp2pio: allow keyboard interrupt while waiting for tx fifo to empty (& stall) 2021-03-01 21:07:04 -06:00
Jeff Epler
238484ec26 Merge remote-tracking branch 'origin/main' into update-protomatter-rp2 2021-03-01 15:18:32 -06:00
Scott Shawcroft
532e7db293
Merge pull request #4267 from dhalbert/rp2040-digitalinout-fixes 
RP2040: change DigitalInOut direction only when necessary; strong drive strength
 2021-03-01 13:14:13 -08:00
gamblor21
d7bc8a46a5 Added counters per slice 2021-02-27 15:17:27 -06:00
root
29c89a2487 Removed more includes 2021-02-26 22:35:38 -06:00
root
f3515502b7 Removed unecessary includes 2021-02-26 22:33:50 -06:00
root
6374408c06 Changed reset_rp2pio_statemachine to clean up any PIO interrupts. 2021-02-26 22:28:50 -06:00
Scott Shawcroft
776301c932
Typo fix: direcion -> direction 2021-02-26 15:03:56 -08:00
Scott Shawcroft
888a0c5f08
Merge pull request #4224 from microDev1/busio-uart-rp 
RP2040: Support for UART
 2021-02-26 14:57:23 -08:00
Dan Halbert
d9234ffa82 need to gpio_set_dir() at some point 2021-02-26 15:27:35 -05:00
root
7942932176 Requested changes 2021-02-26 14:14:55 -06:00
Scott Shawcroft
2e6e91dc5c
Merge pull request #4253 from tannewt/rp2040_fix_pwm_reuse 
Fix second shared PWM
 2021-02-26 11:53:54 -08:00
Scott Shawcroft
7c8d7d77dd
Merge remote-tracking branch 'adafruit/main' into busio-uart-rp 2021-02-26 09:04:42 -08:00
Jeff Epler
1d1ff5f308 Merge remote-tracking branch 'origin/main' into update-protomatter-rp2 2021-02-26 09:56:35 -06:00
Scott Shawcroft
3f08cb47b8
Merge remote-tracking branch 'adafruit/main' into busio-uart-rp 2021-02-25 16:59:15 -08:00
Scott Shawcroft
52bc935fa7
A few minor fixes for corner cases 
* Always clear the peripheral interrupt so we don't hang when full
* Store the ringbuf in the object so it gets collected when we're alive
* Make UART objects have a finaliser so they are deinit when their
  memory is freed
* Copy bytes into the ringbuf from the FIFO after we read to ensure
  the interrupt is enabled ASAP
* Copy bytes into the ringbuf from the FIFO before measuring our
  rx available because the interrupt is based on a threshold (not
  > 0). For example, a single byte won't trigger an interrupt.
 2021-02-25 16:50:57 -08:00
Dan Halbert
d0f1cfb039 address review; use gpio_set() carefully 2021-02-25 18:41:22 -05:00
Scott Shawcroft
2b163ccd6a
Fix incorrect deinit mask 2021-02-25 14:57:46 -08:00
Scott Shawcroft
1b00d94b23
Fix second shared PWM 
Fixes #4210
 2021-02-25 14:49:09 -08:00
Jeff Epler
22276710e6 rp2pio: Fix writing where the stride was 2 or 4 
The wrong stride value was being checked.
 2021-02-25 15:50:49 -06:00
Dan Halbert
199a8ce8b0 change DigitalInOut direction only when necessary; strong drive strength 2021-02-25 14:10:19 -05:00
root
f8eb5bc275 Cleanup PIOs and State Machines on soft reset 2021-02-25 12:38:43 -06:00
microDev
8170e26a86
more uart improvements 
- address suggested changes
- refine uart instance availibility checks
- improve pin validation and rx buffer handling
 2021-02-25 23:46:00 +05:30
root
86e60f5f35 Clean up formatting 2021-02-24 17:26:35 -06:00
root
17ff5dcc99 Return NotImplementedError for PulseOut 2021-02-24 17:04:05 -06:00
root
8e15f36baa pulseio (pulsein) for RP2040 2021-02-24 16:58:29 -06:00
microDev
5d7fdafcde
implement suggested changes 
- add internal buffering
- rtc initialization fix
 2021-02-25 00:48:36 +05:30
Mark
b935dcafdc
Merge branch 'main' into rp2040_countio 2021-02-23 19:46:41 -06:00
gamblor21
379f454ce6 Adding countio to rp2040 2021-02-23 19:38:05 -06:00
Scott Shawcroft
abbbb91fa8
Add state machine divisor check 
This causes an exception when setting a state machine too slow or
too fast.

Fixes #4222
 2021-02-23 16:30:46 -08:00
Scott Shawcroft
360475e266
Implement audiobusio and enhance PIO for it 
This adds I2SOut and PDMIn support via PIO.

StateMachines can now:
 * read and read while writing
 * transfer in 1, 2 or 4 byte increments
 * init pins based on expected defaults automatically
 * be stopped and restarted
 * rxfifo can be cleared and rxstalls detected (good for tracking when
   the reading code isn't keeping up)

Fixes #4162
 2021-02-23 15:50:00 -08:00
Dan Halbert
67406488d1 merge from upstream; re-alphabetize 2021-02-19 14:22:50 -05:00
microDev
b12ccefbe6
uart implementation for rp2040 2021-02-19 18:36:00 +05:30
Dan Halbert
53a002a096 Initial fix, but bitbangio timing may be off 2021-02-18 13:14:51 -05:00
microDev
696d212dc7
fix nvm rewrite 2021-02-18 18:42:00 +05:30
Jeff Epler
ab5eb86118 raspberrypi: implement os.urandom 
Since the datasheet cast some doubt on the strength of the "rosc_hw->randombit",
I use the SHA256 hash function to create a high quality random seed
from random values of uncertain entropy, as well as to generate a sequence
of random values from that seed using SHA256 as a cryptographically-secure
random number generator.

In practice, it produces over 100kB/s of random data which does not
have any gross problems according to _PractRand_.
 2021-02-17 17:49:25 -06:00
Dan Halbert
0b8f1b9a90 wip: usb_cdc.serials 2021-02-15 20:06:18 -05:00
Dan Halbert
93d788543c Merge remote-tracking branch 'adafruit/main' into secondary-cdc 2021-02-15 20:03:53 -05:00
Dan Halbert
0ec99b37e0 handle 100% duty cycle; improve actual_frequency calc 2021-02-13 13:16:49 -05:00
Dan Halbert
d54b5861a3 wip 2021-02-12 19:01:14 -05:00
Dan Halbert
3e4328140c fix off-by-one PWM top issue 2021-02-12 15:53:31 -05:00
Jeff Epler
ff1942cff6 Enable protomatter on RP2040 builds 
Also found a race condition between timer_disable and redraw, which
would happen if I debugger-paused inside common_hal_rgbmatrix_timer_disable
or put a delay or print inside it.  That's what pausing inside reconstruct
fixes.

So that the "right timer" can be chosen, `timer_allocate` now gets the `self`
pointer.  It's guaranteed at this point that the pin information is accurate,
so you can e.g., find a PWM unit related to the pins themselves.
This required touching each port to add the parameter even though it's
unused everywhere but raspberrypi.
 2021-02-12 08:25:15 -06:00
microDev
f2d7a5f1e1
Merge branch 'main' into nvm-rp 2021-02-12 18:36:54 +05:30
microDev
527b11f99e
implement suggested changes 
- update FLASH_FIRMWARE length
- use linker script define value
 2021-02-12 18:28:48 +05:30
Dan Halbert
f0564b4986 merge from upstream; complicated webusb merge 2021-02-11 18:50:02 -05:00
microDev
205837c47b
nvm implementation for rp2040 2021-02-11 12:48:36 +05:30
Scott Shawcroft
191b143e7b
Add PWM based audio playback 
See
https://learn.adafruit.com/circuitpython-essentials/circuitpython-audio-out
to get started.

Fixes #4037
 2021-02-09 15:38:33 -08:00
Scott Shawcroft
b19c700d4a
Merge pull request #4165 from DavePutz/issue_4143 
Issue 4143 - Fixed marking a PWM slice incorrectly as variable frequency
 2021-02-09 14:30:39 -08:00
root
9a28f0bf45 Fix check for variable PWM frequency 2021-02-09 15:22:59 -06:00
Dan Halbert
3c99b09993
Merge pull request #4160 from gamblor21/rp2040_neopixel_pin_fix 
RP2040 Set the neopixel pin as output after PIO use
 2021-02-08 17:57:30 -05:00
gamblor21
386b49c3e1 Set the pin as output after PIO use 2021-02-08 15:13:37 -06:00
Jeff Epler
5423e4966c rp2pio: Transfer up to 32 bytes before checking background tasks 
@Jerryneedell noticed that this problem affected strips short enough
to not use the DMA peripheral, thanks for the hot tip!

Instead of checking for background tasks after every byte transfer,
try up to 32 transfers before attending to background tasks.

This fixes the problem I was seeing on my 5-pixel circuit.

Closes #4135.
 2021-02-08 08:35:07 -06:00
Scott Shawcroft
22dc7d5359
Update to the very latest SDK w/GP15 restore 
Also adds unique id support

Fixes #4039 and hopefully #4107
 2021-02-05 18:44:06 -08:00
Jeff Epler
6e153d9948 raspberrypi: implement reset, reset_to_bootloader 
This makes all the following work:
 * normal microcontroller.reset()
 * reset into safe mode or UF2 bootloader via microcontroller.on_next_reset()
 * reset into UF2 bootloader via the "1200 baud trick"

The implementation of reset_cpu is from micropython.
 2021-02-04 12:07:50 -06:00
BiffoBear
2656c84b01 Initial commit. Edited error messages in .c files 2021-02-03 05:49:40 +07:00
Scott Shawcroft
8789a2c8a9
Merge pull request #4110 from microDev1/rtc-rp 
RP2040: Support for RTC
 2021-02-01 19:47:44 -08:00
microDev
ec03267035
rtc implementation for rp2040 2021-02-02 00:00:00 +05:30
Dan Halbert
459f323247
Merge pull request #4087 from DavePutz/cpu_temp_doc 
Fixing microcontroller.cpu on multi-core cpus and adding microcontroller.cpus
 2021-02-01 12:50:37 -05:00
microDev
34fe152fcf
extend include path 2021-01-30 14:00:14 +05:30
root
67f128c0cf Fixing microcontroller.cpu on muti-core cpus and adding microcontroller.cpus 2021-01-28 14:42:39 -06:00
microDev
a54b57ea40
watchdog implementation for rp2040 2021-01-28 15:15:15 +05:30
Dan Halbert
29e672fe86
Merge pull request #4071 from tannewt/rp2040_uart_error 
Raise an error on UART use
 2021-01-26 15:22:02 -05:00
Scott Shawcroft
b42e94ee2c
Raise an error on UART use 2021-01-26 08:48:30 -08:00
Dan Halbert
be4cfdd3d6 Use TOTAL_GPIO_COUNT instead of magic number 30 2021-01-25 22:16:24 -05:00
Dan Halbert
0fa5aa359d Stop treating pin 15 specially. 2021-01-25 16:07:01 -05:00
Scott Shawcroft
de6b05a17b
Fix DigitalInOut.pull on RP2040 
It used to always return None.

Fixes #4035
 2021-01-22 19:00:37 -08:00
Scott Shawcroft
6a6f22b0e6
pre-commit 2021-01-20 23:30:15 -08:00
Scott Shawcroft
733094aead
Add initial RP2040 support 
The RP2040 is new microcontroller from Raspberry Pi that features
two Cortex M0s and eight PIO state machines that are good for
crunching lots of data. It has 264k RAM and a built in UF2
bootloader too.

Datasheet: https://pico.raspberrypi.org/files/rp2040_datasheet.pdf
 2021-01-20 19:16:56 -08:00