Dario Nieuwenhuis
3a4dbfa52e
Massicely simplify peripheral abstraction
2021-01-05 01:57:05 +01:00
Timo Kröger
0631623b51
uarte: Low power wait for RX drop
2021-01-04 22:55:40 +01:00
Timo Kröger
93780fa31d
uarte: Wait for the peripheral to be disabled
...
Prevents a panic in the case of:
1. Abort a receive future
2. Free Uarte::free()
3. Uarte::new()
-> panicked at 'assertion failed: uarte.enable.read().enable().is_disabled()'
2021-01-04 22:55:40 +01:00
Timo Kröger
9b1f7b8a17
uarte: Enable peripheral with first poll
...
This fixes a lockup when a future is dropped before it was polled.
2021-01-04 22:55:40 +01:00
Timo Kröger
85ec9dd16f
uarte: Be on safe side with potentially racy code
...
The PS does not specify how many cycles it takes for a STARTXX task to
generate a XXSTARTED event. I think it is instantaneous but let’s be on
the safe side for the following sequence:
1. poll() starttx
2. drop() txstarted not yet set, but future gets dropped
3. txstarted set by hardware, peripheral enabled after it was dropped
2021-01-04 22:55:40 +01:00
Timo Kröger
a3b3305b8e
uarte: Only stop TX forcefully when a transmissions is running
...
This comes with insignificant power consumption improvements but makes
the code of the RX and TX case symmetric.
2021-01-04 22:55:40 +01:00
Timo Kröger
a7c03e4cb6
uarte: Only stop RX forcefully when a reception is running
...
The STOPRX task always triggers a timeout of ~55bit times until the
RXTO event is generated. Before we disabled the receiver only after
the timeout.
With this change the receiver is stopped right after reception has ended
because the DMA buffer is full.
For forced RX aborts like `stop()` or on drop still need to wait for the
RXTO event before disabling the receiver.
2021-01-04 22:55:40 +01:00
Timo Kröger
9f28c7ab8d
uarte: Do not spin when stopping a receive future
...
Spinning on drop() is still required when the future has not been
stopped so that DMA finishes before the buffer is released.
2021-01-04 22:55:40 +01:00
Dario Nieuwenhuis
9e88718fbd
Add "context" pointer to owned interrupt handlers.
2021-01-04 22:25:39 +01:00
xoviat
d89462fc16
remove macros
2021-01-04 12:53:27 -06:00
xoviat
f3676e1eab
rename examples
2021-01-04 12:52:00 -06:00
xoviat
be541b94aa
Merge branch 'master' into stm32f4
2021-01-04 12:50:22 -06:00
xoviat
9bf09488f1
fix interrupts
2021-01-04 12:48:13 -06:00
Dario Nieuwenhuis
39ca8b8ded
Fix build on non-nrf52840
2021-01-03 22:30:47 +01:00
Dario Nieuwenhuis
ace4f40f80
Introduce "peripheral" abstraction to share state between main and interrupt.
2021-01-03 01:40:40 +01:00
Dario Nieuwenhuis
4ce51795f2
use hal::Pins for BufferedUarte
2021-01-02 20:31:50 +01:00
Dario Nieuwenhuis
8fa3294f35
Update readme
2021-01-02 20:13:35 +01:00
Dario Nieuwenhuis
0ab88ea279
Add Uart trait, implement it for nrf.
2021-01-02 19:59:37 +01:00
Dario Nieuwenhuis
1d53985abe
Remove now-stable slice_fill feature
2021-01-02 19:56:05 +01:00
Dario Nieuwenhuis
3c7e7220b3
Don't use embedded_dma in nrf uarte.
2021-01-02 19:14:54 +01:00
Dario Nieuwenhuis
396d7650ca
Add some comments to uart example.
2021-01-01 23:04:18 +01:00
Dario Nieuwenhuis
20d3dc87f9
Rename examples -> embassy-nrf-examples
2021-01-01 22:46:32 +01:00
Dario Nieuwenhuis
4783222f67
Rename WakerStore -> WakerRegistration.
2021-01-01 22:30:11 +01:00
xoviat
2ee2d18465
simplify impl. and add interupt idea
2021-01-01 14:59:57 -06:00
xoviat
d5cb9bebaa
implement on irqs
2020-12-31 17:59:01 -06:00
xoviat
cc8d162859
begin integrate interrupt
2020-12-31 16:59:42 -06:00
xoviat
cc0076a0eb
update hal branch
2020-12-31 16:49:27 -06:00
xoviat
925ede848e
rename uarte as serial
2020-12-31 16:40:51 -06:00
xoviat
308756f366
generalize uarte
2020-12-31 16:38:31 -06:00
xoviat
142c01ad01
generalize futures
2020-12-31 16:11:23 -06:00
xoviat
d52e1b2276
use transfer_complete_flag; make partially generic
2020-12-31 15:58:35 -06:00
Dario Nieuwenhuis
ffb92731cd
Merge pull request #12 from timokroeger/task-macro-warning
...
Fix warnings for tasks that take mutable parameters
2020-12-31 16:32:44 +01:00
Timo Kröger
c17954ccba
Fix warnings for tasks that take mutable parameters
...
#[task]
pub async fn run(mut param: Param) {}
warning: variable does not need to be mutable
2020-12-31 15:38:10 +01:00
xoviat
43904e8db0
clean-up example
2020-12-30 21:24:32 -06:00
xoviat
2d979eb4ef
add interrupts
2020-12-30 21:14:56 -06:00
xoviat
ea36029a3d
reformat
2020-12-30 19:50:15 -06:00
xoviat
a5cf65a17b
impl. poll:ready
2020-12-30 19:45:07 -06:00
xoviat
de2b1adafe
Merge branch 'master' of https://github.com/akiles/embassy into stm32f4
2020-12-30 13:17:47 -06:00
Dario Nieuwenhuis
cd56d2621a
Merge pull request #3 from timokroeger/low-power-uarte
...
(low power) UARTE implementation
2020-12-30 19:57:36 +01:00
xoviat
c6cf9b801d
minor rework to get tx working (maybe)
2020-12-30 12:27:47 -06:00
Timo Kröger
6695bf0f21
Low power UART driver
2020-12-30 19:24:12 +01:00
Timo Kröger
c97d5262f5
Blocking wait method for signals
2020-12-30 19:24:12 +01:00
xoviat
60c7d112b1
fix borrowing errors
2020-12-30 11:05:52 -06:00
xoviat
41db867d9a
fix transfer mutability
2020-12-29 22:57:00 -06:00
Dario Nieuwenhuis
6bc1a712ff
Fix Forever
2020-12-30 04:17:45 +01:00
Dario Nieuwenhuis
a02d0a378e
Fix race in enqueuing expired tasks.
2020-12-30 04:12:48 +01:00
xoviat
53c2829eb1
add dma example; rename uarte
2020-12-29 19:10:47 -06:00
Dario Nieuwenhuis
bb6f25d010
Remove use of deprecated compare_and_swap.
2020-12-30 01:07:22 +01:00
Dario Nieuwenhuis
015b6bbce4
Ensure timers always yield at least once.
...
This prevents a task that's constantly running late from monopolizing the CPU.
Add executor_fairness_test example showcasing it.
2020-12-30 00:57:35 +01:00
xoviat
74b5d4693c
implement prelim draft
2020-12-29 12:33:50 -06:00
