Commit Graph

425 Commits

Author SHA1 Message Date
Ulf Lilleengen
f79624c3e6 Upgrade to embedded-storage 0.3.0 2022-02-07 12:35:58 +01:00
bors[bot]
a1d6077446
Merge #591
591: PWM WS2812B example and flexible sequence config r=Dirbaio a=huntc

I've permitted the PWM sequences to be mutated on stopping the PWM by associating them with a new  `SingleSequencer` structure. This is so that we can perform effects on the LEDs (and other use-cases, I'm sure!). The example has been updated to illustrate the use of this by flashing a WS2812B LED.

There's also a `Sequencer` structure for more sophisticated PWM interactions, along with a `pwm_double_sequence`  example to illustrate.

These changes should make it possible to attain all of the nRF PWM functionality available.

Co-authored-by: huntc <huntchr@gmail.com>
2022-02-05 02:20:13 +00:00
huntc
df5ba727f2 Further API simplification for the single seq scenario 2022-02-05 08:05:23 +11:00
huntc
3b2beddc7a Forgot to expose the stop method 2022-02-04 19:14:24 +11:00
huntc
965a5f2c3f Introduced the SingleSequencer and a more complex Sequencer 2022-02-04 19:11:15 +11:00
huntc
fe5501293f Expose PWM 2022-02-04 16:26:23 +11:00
huntc
25be00878c Doco correction 2022-02-04 15:55:04 +11:00
huntc
1af6b23f97 Introduces a Sequences struct 2022-02-04 13:04:55 +11:00
huntc
bc7266394d Clarify why we need the mut buffer 2022-02-04 11:48:08 +11:00
huntc
986295998a Some more doco 2022-01-30 16:26:09 +11:00
huntc
1c67bd4643 Revert "Own the sequence buffer"
This reverts commit 482389a691.
2022-01-30 16:21:23 +11:00
huntc
482389a691 Own the sequence buffer
This approach owns the sequence buffers which, while introducing an extra move, it eliminates the need to guard the lifetime of the sequence buffer. Given ownership, the buffer will be retained until the PWM sequence task is stopped.
2022-01-29 18:01:06 +11:00
huntc
9ac52a768b Now permits sequences to be mutated subsequently 2022-01-28 16:32:58 +11:00
huntc
8e9f448866 Doc tidying 2022-01-28 13:43:36 +11:00
huntc
12ce024574 Make the sequence a little nicer to pass around 2022-01-28 13:38:20 +11:00
huntc
47aeab152f PWM WS2812B example and per sequence config
Demonstrates how to set the colour of a WS2812B to blue using PWM, and the use of multiple sequences along with their own config. This required an API change.
2022-01-28 11:20:04 +11:00
Dario Nieuwenhuis
0719b05d63 traits: migrate Delay to embedded-hal 1.0+async, remove Rng and Flash. 2022-01-27 00:08:02 +01:00
huntc
c9f29534d6 Stop PWM before assigning the new sequence
I had introduced a small bug in my last PR where I assigned the sequence before stopping the PWM. I now stop the PWM before doing that now.

Also, corrected a math comment.
2022-01-25 16:51:24 +11:00
huntc
48afef28a0 Strengthen the borrow
The start method is now safe. Because it has the potential of borrowing the sequence and mutating itself, the sequence must outlive the Pwm struct.
2022-01-24 17:22:35 +11:00
huntc
7598b8a40f Permit many sequences to be passed
Sequences are now passed in via the start method to avoid having to stop the PWM and restart it. Sequences continue to be constrained with the same lifetime of the Pwm object itself. The pwm_sequence example has been extended to illustrate multiple sequences being passed around.
2022-01-23 16:29:52 +11:00
Dario Nieuwenhuis
b640c72092 nrf: return ptr in slice_ptr_parts 2022-01-19 17:31:32 +01:00
Dario Nieuwenhuis
7997687f3b nrf: impl embedded-hal 1.0 and embedded-hal-async traits. 2022-01-13 23:56:39 +01:00
Dario Nieuwenhuis
6eec3d8acc nrf/rng: expose all functionality as inherent methods. 2022-01-13 23:56:39 +01:00
Dario Nieuwenhuis
df00c83984 nrf/qspi: expose all functionality as inherent methods. 2022-01-13 23:56:39 +01:00
Dario Nieuwenhuis
3e503e7335 nrf/uarte: expose all functionality as inherent methods. 2022-01-13 23:56:39 +01:00
Dario Nieuwenhuis
c432d036c7 nrf/gpiote: expose all functionality as inherent methods. 2022-01-13 23:56:39 +01:00
Dario Nieuwenhuis
3ca01cba8d nrf/gpio: Rename FlexPin to Flex.
FlexPin sounds like it's an owned pin singleton, like AnyPin or NoPin.
2022-01-13 23:56:39 +01:00
Dario Nieuwenhuis
ecb4f8fb00 nrf/twim: expose all functionality as inherent methods. 2022-01-13 23:56:39 +01:00
Dario Nieuwenhuis
a287fef687 nrf/spim: expose all functionality as inherent methods. 2022-01-13 23:56:39 +01:00
Dario Nieuwenhuis
7086642ce4 nrf/spim: share code between blocking+async. 2022-01-13 19:53:12 +01:00
huntc
c54303be75 Makes the uarte endtx event available
This commit allows event_endtx to be used outside of the Uarte itself. As a consequence, PPI can be used to drive tasks given the end of transmission on the Uarte. This is particularly useful for situations like RS485 where a GPIO must be set to high when transmitting then cleared when done. A non-ppi approach can cause a delay in the clearing of this GPIO as other Embassy tasks might become scheduled.
2022-01-10 19:14:02 +11:00
huntc
d5d8897c84 Remove unsafe from new on RND
Unsafe is not required here given that all futures are required to live longer than their global peripheral instances. There are other occurrences of unsafe being used on new that should be removed. I started to do that but then went down a bit of a rabbit hole.
2022-01-06 09:59:28 +11:00
bors[bot]
f744b74e90
Merge #539
539: nrf: async usb r=Dirbaio a=jacobrosenthal

Frankensteined together from this old pr https://github.com/embassy-rs/embassy/pull/115 and nrf-usdb

~Doesnt currently work..~

Co-authored-by: Jacob Rosenthal <jacobrosenthal@gmail.com>
2022-01-04 07:41:54 +00:00
Jacob Rosenthal
7be34aa22f use upstream nrf-usdb 2022-01-03 11:52:36 -07:00
Dario Nieuwenhuis
d1740b10f0 Lower some verbose logs to trace. 2021-12-23 13:43:14 +01:00
Dario Nieuwenhuis
22bc1e4ae1 nrf/gpio: add infallible inherent methods, remove some duplication.
This implements Input and Output using FlexPin, to avoid some code duplication.
2021-12-20 00:55:18 +01:00
huntc
3d8eecff89 Set Uarte log levels to trace
I noticed lots of logging which really slows things down and is not useful outside of a debugging context, hence set to trace.
2021-12-17 17:06:46 +11:00
Ulf Lilleengen
2bbd1ddb8a Remove unneeded rustfmt::skip 2021-12-16 11:37:53 +01:00
Ulf Lilleengen
985c11fad5 Update rust-toolchain 2021-12-16 11:34:20 +01:00
bors[bot]
5df16c6793
Merge #544
544: Introduces split on the nRF Uarte r=Dirbaio a=huntc

A new `split` method is introduced such that the Uarte tx and rx can be used from separate tasks. An MPSC is used in an example to illustrate how data may be passed between these tasks.

The approach taken within the `Uarte` struct is to split into tx and rx fields on calling `Uarte::new`. These fields are returned given a call to `Uarte::split`, but otherwise, if that call isn't made, then the API remains as it was before.

Here's a snippet from a new example introduced:

```rust
#[embassy::main]
async fn main(spawner: Spawner, p: Peripherals) {
    // ...

    let uart = uarte::Uarte::new(p.UARTE0, irq, p.P0_08, p.P0_06, NoPin, NoPin, config);
    let (mut tx, rx) = uart.split();

    // ...

    // Spawn a task responsible purely for reading

    unwrap!(spawner.spawn(reader(rx, s)));

    // ...

    // Continue reading in this main task and write
    // back out the buffer we receive from the read
    // task.
    loop {
        if let Some(buf) = r.recv().await {
            info!("writing...");
            unwrap!(tx.write(&buf).await);
        }
    }
}

#[embassy::task]
async fn reader(mut rx: UarteRx<'static, UARTE0>, s: Sender<'static, Noop, [u8; 8], 1>) {
    let mut buf = [0; 8];
    loop {
        info!("reading...");
        unwrap!(rx.read(&mut buf).await);
        unwrap!(s.send(buf).await);
    }
}
```


Co-authored-by: huntc <huntchr@gmail.com>
2021-12-16 07:44:40 +00:00
huntc
0642eec01e Properly initialise refcount 2021-12-16 18:15:28 +11:00
huntc
bb03b5cc02 Too much copy/pasta
The tx permitted reads and the rx permitted writes!
2021-12-16 07:16:38 +11:00
huntc
2493699fb3 Ref count the peripheral drop 2021-12-16 07:09:33 +11:00
Jacob Rosenthal
cfb5e8df57 undo T:regs in impl UsbPeripheral 2021-12-15 11:00:55 -07:00
Jacob Rosenthal
50f151e6bc use Instance regs 2021-12-15 10:29:19 -07:00
Jacob Rosenthal
cd356896ee fix nrf52820 2021-12-15 10:27:10 -07:00
Jacob Rosenthal
61f12324ff enable USB peripheral for relevant chips 2021-12-15 10:23:19 -07:00
Jacob Rosenthal
1c0a3688a4 use forked nrf-usbd 2021-12-15 10:00:17 -07:00
Jacob Rosenthal
79502330de rename to UsbBus 2021-12-15 09:59:56 -07:00
huntc
1374ad2ab6 Introduces split on the nRF Uarte
A new `split` method is introduced such that the Uarte tx and rx can be used from separate tasks. An MPSC is used to illustrate how data may be passed between these tasks.
2021-12-15 18:31:52 +11:00