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Author SHA1 Message Date
Liam Murphy 56aa96769d Don't assume usize is 32 bits 2022-03-05 21:57:35 +11:00
Liam Murphy 51cd52bb8c fmt 2022-03-05 18:53:11 +11:00
Liam Murphy f0b46c0f58 Remove the alloc requirement for Core::spawn 2022-03-05 14:55:32 +11:00
9names a40bcc94ea
Add changes since 0.3.0 to changelog (#295) 2022-03-03 14:34:51 +11:00
9names 111654fc28
Merge pull request #291 from jannic/avoid-64bit-division 
Avoid 64bit division
 2022-02-27 10:42:56 +11:00
Jan Niehusmann 021e942e47 Fix clippy warnings 2022-02-27 09:29:54 +11:00
Jan Niehusmann b46ddd7351 Add test cases for fractional_div() 2022-02-26 13:33:58 +00:00
Jan Niehusmann fecde70cf9 Derive several traits for ClockError 2022-02-26 13:33:58 +00:00
Jan Niehusmann 402b7f1eb8 Use u32 instead of u64 division in clock calculations 
This saves about 1kB of flash by removing
compiler_builtins::int::specialized_div_rem::u64_div_rem if
no other code uses u64 divisions.
 2022-02-26 13:33:58 +00:00
Jan Niehusmann 7750781650
Implement embedded-hal 1.0.0-alpha.7 traits (#298) 
* embedded-hal v1.0.0-alpha.7 removed several traits

* bump dependency to embedded-hal 1.0.0-alpha.7

* Mention embedded-hal alpha changes in changelog
 2022-02-26 21:06:55 +11:00
Emil Fresk b7e56d0869 Added so stopped PIO state machines can change their clock divider 2022-02-26 20:57:12 +11:00
Jonathan 'theJPster' Pallant 212ffec6ca
Merge pull request #294 from 9names/gpio_irq_example 
Add GPIO interrupt example
 2022-02-21 18:10:27 +00:00
9names 4075f81b2d
Merge pull request #272 from 9names/watchdog_fix 
Set hw reset bits for watchdog
 2022-02-20 16:46:12 +11:00
9names 8063882801
Add note about #[interrupt] mut -> &mut transform 
Co-authored-by: Jan Niehusmann <github@gondor.com>
 2022-02-16 22:48:52 +11:00
9names 35875c8756 Store pins together in a tuple to reduce boilerplate 2022-02-15 20:17:18 +11:00
9names 44a9b0f541 Add GPIO interrupt example 2022-02-14 22:47:46 +11:00
9names fff980611a
Merge pull request #289 from astraw/fix-typo 
fix typo
 2022-02-13 13:37:12 +11:00
Derek Hageman 80c84b13ba Add ROM floating point math library 
Hook up the ROM functions to floating point intrinsics.
 2022-02-12 11:56:24 -07:00
Derek Hageman ce681b4f10 Move divider intrinsics to the new intrinsics macro 2022-02-12 11:56:24 -07:00
Derek Hageman a70eb89799 Add basic ROM intrinsics 
Add a standardized macro for intrinsics export and connect the simple
ROM functions to intrinsics.
 2022-02-12 11:56:24 -07:00
Derek Hageman 81ab38fd71 Add ROM version check 
Add a check for a V2 bootrom when using floating point functions that
require it.  Panic when it's not present.
 2022-02-06 17:14:27 -07:00
Andrew Straw 799449dd1a fix typo 2022-02-06 09:03:30 +01:00
Derek Hageman a6f2453440 Fix ROM function signatures 
Fix a few function signatures that don't match the ROM according to the
datasheet.
_memset4 also has a wrong code in the datasheet, so match it to the
actual ROM.
 2022-02-04 07:18:11 -07:00
Jonathan 'theJPster' Pallant 8bdecd2058
Merge pull request #283 from Sizurka/rom-functions 
Improve ROM function access
 2022-02-04 09:53:59 +00:00
Derek Hageman 98fd6c1724 Add ROM function caching 
Add a feature to enable automatic caching of the result of ROM table
function lookups.
 2022-02-03 13:45:18 -07:00
Derek Hageman a6daaf9fa3 Standardize ROM function access 
Make all ROM functions (normal and floating point) provide both a direct
call that does the operation and a module with a ptr() function to get
the function pointer.
 2022-02-03 13:32:18 -07:00
Jonathan 'theJPster' Pallant 16c9064c52
Merge pull request #280 from 9names/alarm-ergonomics 
Use atomic operations for altering Timer alarm interrupts
 2022-02-03 19:47:40 +00:00
Jonathan 'theJPster' Pallant 385c92392b
Merge pull request #278 from Sizurka/divider-intrinsics 
Implement intrinsics for the hardware divider
 2022-02-03 19:46:00 +00:00
Andrew Straw cd15d268f6 run 'cargo fmt' 2022-02-02 22:10:39 +01:00
Andrew Straw a1ed9ef93c example of side setting using PIO 2022-02-01 11:09:09 +01:00
Jonathan 'theJPster' Pallant 354a2a5e5e
Merge pull request #281 from rp-rs/update_pac 
Use new spinlock API provide by PAC 0.3.0
 2022-01-31 10:40:02 +00:00
Jonathan 'theJPster' Pallant 4a540d041a Hide spinlock 31. 2022-01-30 16:43:59 +00:00
Jonathan 'theJPster' Pallant efda22c9ea Update spinlock docs. 2022-01-30 16:43:53 +00:00
Jonathan 'theJPster' Pallant f44f5f0e09 Make clippy happy. 2022-01-30 16:12:43 +00:00
Jonathan 'theJPster' Pallant 35a10f2bc6 Clean up critical-section impl. 
Adds new `Sio::core()` function.
 2022-01-30 16:07:40 +00:00
Jonathan 'theJPster' Pallant 7e2f8d274c Use const generics for spinlocks. 
The fewer code-generating macros we have, the better!
 2022-01-30 15:56:23 +00:00
Jonathan 'theJPster' Pallant c8c366c23d Use new spinlock API provide by PAC 0.3.0 2022-01-30 12:56:51 +00:00
9names b19f2cc8e5 Use atomic operations for altering Timer interrupts 2022-01-30 22:54:27 +11:00
Jan Niehusmann a9763837a9 Add comment regarding release mode 2022-01-28 22:18:32 +00:00
Jan Niehusmann f6b2e3365e use dht-sensor crate and fix comments 2022-01-28 21:36:30 +00:00
Jan Niehusmann bb6b7706f9 Add dht11 example 2022-01-28 19:44:26 +00:00
Jonathan Pallant 5771f872f2
Merge pull request #269 from 9names/fix_uart_example_clock 
Use .freq() to avoid moving clock
 2022-01-28 15:03:23 +00:00
Wilfried Chauveau d08bfac989 Fix i2c peripheral mode state machine 
The start_det flag is set as soon as a start condition occurs
whereas rd_req flag is only set once the address byte is received.
 2022-01-29 00:01:32 +11:00
Derek Hageman f279945315 Add intrinsics for the hardware divider 
Implement intrinsic functions so basic operators use the hardware divider.
 2022-01-26 19:37:06 -07:00
Derek Hageman 35704d9799 Change divider delay to explicit NOPs 
Use explicit NOPs since cortex_m::asm::delay actually delays for
longer than we need to.
 2022-01-26 19:37:06 -07:00
Derek Hageman c2d3b21d91 Make hardware divisor interrupt safe 
Copy the pico-sdk logic for save and restore of the hardware divider
for making it interrupt safe.
 2022-01-26 19:37:06 -07:00
9names 57e9943836 Set hw reset bits for watchdog 2022-01-20 21:55:16 +11:00
9names c8b75204ee Use .freq() to avoid moving clock 2022-01-20 18:28:51 +11:00
Victor Koenders d6e3c7b615
Set the uart config default baud rate to 115200 2022-01-18 17:28:13 +01:00
Victor Koenders b3b4d9ff6f
Fixed doc test 2022-01-18 11:32:48 +01:00
Victor Koenders 9e75cec551
Added impl Default for UartConfig 2022-01-18 11:17:01 +01:00
Wilfried Chauveau 7840d0f833 embassy-traits: Fix unexpected restart on repeated read. 2022-01-13 19:28:23 +11:00
Jonathan 'theJPster' Pallant d3c9c3b4e2
Merge pull request #263 from WeirdConstructor/fix_alarm_schedule_race_cond 
Fix alarm schedule race condition
 2022-01-12 20:07:59 +00:00
Weird Constructor 7a23247ca1 Fix alarm schedule() race condition. 2022-01-12 06:41:03 +01:00
Weird Constructor a7b71bd5aa Fix compilation bug in the documentation 2022-01-09 15:16:01 +01:00
Weird Constructor 9e84c961a8 (Hopefully) Improved documentation of bsp_pins!() 2022-01-09 13:50:57 +01:00
Jonathan 'theJPster' Pallant f23ababb1a
Merge pull request #197 from chinoto/pio_sound_send 
pio: Fix unsound Send clippy warning
 2022-01-06 12:57:26 +00:00
Jonathan 'theJPster' Pallant 43650b3248
Merge pull request #248 from jannic/bump-versions 
Bump versions of HAL and BSPs
 2021-12-27 11:00:31 +00:00
Jonathan Pallant 67d9da85e6 Fix docs for SerialInfallible. 2021-12-26 20:57:04 +00:00
Jonathan Pallant 55acbdb1b0 Fix build errors in eh_1.0 mode. 2021-12-26 20:56:48 +00:00
Jan Niehusmann 2f9a950cbe Bump versions of HAL and BSPs 
The change to UartPeripheral in #210 was a breaking change:
Bump the version of the HAL and all dependent BSP crates.
 2021-12-26 19:52:04 +00:00
Jonathan Pallant 7da16a726f Fixing typos spotted in the review. 2021-12-26 19:39:16 +00:00
Jonathan Pallant (Ferrous Systems) d3bd232885 Added two UART IRQ examples. 
They are in the pico BSP as they need the 'rt' feature. Also includes
changes to the UART driver for enabling/disabling interrupts.
 2021-12-26 19:33:23 +00:00
Victor Koenders 8f63be0f22
Fixed failing doctest 2021-12-25 09:49:32 +01:00
Victor Koenders 86444448a4
Migrated examples to the new uart system 2021-12-25 09:46:40 +01:00
Victor Koenders c41c273131
Added reader/writer split to UartPeripheral 2021-12-25 09:46:38 +01:00
Victor Koenders 84b8fb05b0
Fixed compile errors on eh1_0_alpha feature 2021-12-25 09:46:34 +01:00
Victor Koenders a8a27672b8
Constraint the uart::pin:: traits to UartDevice 2021-12-25 09:45:57 +01:00
Victor Koenders a4a0bcf987
Added pins to the uart constructor functions 2021-12-25 09:45:54 +01:00
Victor Koenders bdfb4d82c9
Split uart in separate files, introduced a typesystem constraint for valid UART pin configurations 2021-12-25 09:45:45 +01:00
Jonathan Pallant 4959afe151 Include manufacturer in BSP crate name. 
Avoids ambiguity.
 2021-12-20 21:28:00 +00:00
Jonathan Pallant 7278c36e93 Add MSRV 2021-12-20 20:05:40 +00:00
Jonathan Pallant 96c2273dce Noted 0.3.0 includes many bug fixes. 2021-12-20 19:53:15 +00:00
Jonathan Pallant 5701ab431f Revised CHANGELOG. 
Added extra items to 0.3.0.
Reformatted 0.2.0 entry.
 2021-12-20 19:52:31 +00:00
Jonathan Pallant bebf85d4d9 Set up for 0.3.0 release. 
Somehow we already had a bunch of commits talking about 0.3.0, but it
was never released. Hence why this maybe doesn't change as many version
numbers as you might expect.
 2021-12-19 19:22:15 +00:00
Jonathan Pallant a9f6ab8de4 Comment out embassy traits. 
The git dep prevents us from publishing, rp2040-hal, and embassy
aren't doing a release any time soon.
 2021-12-18 19:09:37 +00:00
Jonathan 'theJPster' Pallant 53d9dbdf52
Update to pio-rs v0.1.0 (#239) 
* Update to PIO 0.1.0

* Update to latest ws2812-pio and i2c-pio.

These depend on pio 0.1.0, avoiding a conflict

* Rename CI tests.

Also check we can cargo build. And remove 'on host tests' that didn't
do anything.

Co-authored-by: Jonathan Pallant <jonathan.pallant@42technology.com>
 2021-12-14 10:52:32 +11:00
Pedro Ferreira 24a417f01a
Make fields in UartConfig public (#233) 
Otherwise it's impossible to have a configuration which differs from the provided default options.
 2021-12-14 10:47:35 +11:00
9names 427344667e
Add basic multicore FIFO example (#226) 
* Add basic multicore fifo example

* Add documentation for multicore

* Send system_clock frequency to core1 over FIFO in example

* Add Stack::new() to HAL. Use Stack::new() in example
 2021-12-08 19:34:39 +11:00
Jonathan 'theJPster' Pallant 539f6db0f7
Merge pull request #231 from ithinuel/bump-embassy 
Bump embassy's dependencies
 2021-12-05 18:03:03 +00:00
Jonathan 'theJPster' Pallant b94a5ab885
Merge pull request #232 from jannic/refactor-uart-init 
Refactor uart init
 2021-12-05 18:02:44 +00:00
Wilfried Chauveau fee8881801
bump embassy's dependencies 2021-12-05 12:39:25 +00:00
Jan Niehusmann b380b3ddf6 Reset UART in new() 2021-12-05 07:05:12 +00:00
9names 422da14e19
Merge branch 'main' into reexport_mod_structs 2021-12-05 01:04:08 +11:00
9names 0e7abdc705
Make BSPs provide boot2 as a default feature (#153) 
* Add boot2 feature. Add boot2 linkage into each BSP optional on feature

* Enable boot2 feature in BSPs by default. Remove boot2 decl from all BSP examples

* Add EXTERN in memory.x for BOOT2_FIRMWARE, rename bootloader static slice to BOOT2_FIRMWARE

* Update new examples and itsy_bitsy BSP to use boot2 feature

* Remove boot2 as a dev-dependency for the BSPs, no longer needed

* Add no_mangle BOOT2_FIRMWARE to adafruit_macropad

* Fix itsy-bitsy blinky - it wasn't using the BSP, so it didn't get BOOT2_FIRMWARE linked in
 2021-12-05 01:00:09 +11:00
9names dc8ceffd09 Move uses of sio::Sio to Sio 2021-12-04 16:20:27 +11:00
9names 11aa0b87af Cargo fmt 2021-12-04 15:38:25 +11:00
Jan Niehusmann 26fa532fa3 Refactor Uart initialization 2021-12-03 21:24:50 +00:00
9names 33ff337631
Merge branch 'rp-rs:main' into reexport_mod_structs 2021-12-04 00:43:14 +11:00
9names 6ab9cd7ed3 Generate sev in sio.fifo.write() 2021-12-04 00:42:46 +11:00
9names 55a8b4acf9 Re-export mod structs 2021-12-04 00:04:45 +11:00
9names a7d5dc2bee Add safety docs from atsamd-rs to GPIO traits 2021-12-03 23:42:45 +11:00
Gus Caplan 5dafe3985f use user-provided stack for core 1 
Fixes: https://github.com/rp-rs/rp-hal/issues/218
 2021-12-03 20:24:53 +11:00
9names d84e641390
Add simple interrupt_disable+spinlock critical-section impl (#151) 
* Add basic interrupt_disable+spinlock critical-section

* Update impl based on feedback from jannic

* Get rid of count variable, switch to AtomicU8 for lock state

* Remove interrupt::disable that isn't necessary for safety

* Rename variables, re-write most of the comments

* Add fences to ensure ordering
 2021-12-02 00:03:41 +11:00
devsnek e1f99443d9
multicore (#89) 
mvp multicore implementation

Co-authored-by: Jan Niehusmann <jan@gondor.com>
 2021-12-01 23:52:53 +11:00
Trangar f68f148d12
Added RtcClock DateTime and alarms (#213) 
* Added RealTimeClock, DateTime and RTC alarms

* Improved documentation on weird behaviors in the RealTimeClock

* Fixed incorrect leap_year_check in RealTimeClock

* Fixed rtc-datetime PR feedback
 2021-11-29 21:15:20 +11:00
Jonathan 'theJPster' Pallant fad1dfa259
Merge pull request #191 from jannic/rename-set_instruction 
Rename set_instruction to exec_instruction
 2021-11-25 19:08:13 +00:00
Jonathan 'theJPster' Pallant 3a3280575f
Merge pull request #204 from rp-rs/add_sio_fifo 
Add SIO FIFO
 2021-11-25 19:05:40 +00:00
Jan Niehusmann bb8531445e Fix fmt 
Thats what happens when editing files directly on github...
 2021-11-25 16:44:57 +00:00
Jan Niehusmann 15c162757f
Update docs in rp2040-hal/src/pio.rs 
Co-authored-by: Wilfried Chauveau <wilfried.chauveau@ithinuel.me>
 2021-11-25 17:38:18 +01:00
Jonathan Pallant (Ferrous Systems) 69255f7b8c Fix wfe/sev semantics. 
We must sev on write, so the other core can wfe on read.
 2021-11-25 15:14:03 +00:00
Jonathan Pallant (Ferrous Systems) e9694bbb91 Use released 0.2.0 PAC. 2021-11-25 14:45:28 +00:00
Jonathan Pallant ed860ed106
Merge pull request #208 from VictorKoenders/spinlock 
Added spinlocks
 2021-11-25 14:44:46 +00:00
Jonathan Pallant 968e49aa03
Merge pull request #198 from VictorKoenders/alarm 
Added timer alarms
 2021-11-25 14:33:06 +00:00
Jonathan Pallant 292a6f13c8
Merge pull request #205 from jannic/eh-1_alpha6 
Update eh1_0_alpha feature for embedded-hal 1.0.0-alpha.6
 2021-11-25 14:30:02 +00:00
Victor Koenders 111b355da2
Fixed error in spinlock's documentation 2021-11-24 11:59:43 +01:00
Victor Koenders 88fbc38f8b
Added spinlocks 2021-11-24 08:19:42 +01:00
Victor Koenders a9d96f352e
Removed incorret unsafe impl Sync, added interrupt_free around obtaining an alarm 2021-11-24 07:41:04 +01:00
Victor Koenders 1fd04d3384
Made the alarmX take exclusive ownership of Timer on functions that could cause UB when run in parallel 2021-11-24 07:41:03 +01:00
Victor Koenders 97a5bd355c
Added AlarmX::disable_interrupt, made AlarmX::schedule able to return an error if the time is too short 2021-11-24 07:41:00 +01:00
Victor Koenders 119c5a94e8
Added timer alarms 2021-11-24 07:40:56 +01:00
Damian J Pound c7c5fb00d8 pio: Fix unsound Send clippy warning 2021-11-21 22:32:22 -06:00
Jan Niehusmann 3ab84702b7 Update comments 2021-11-21 13:16:03 +00:00
Jan Niehusmann 9a018ac359 Update uart implementation of embedded-hal 1.x to 1.0.0-alpha.6 2021-11-19 22:46:55 +00:00
Jan Niehusmann 1294f556e9 Update SPI implementation of embedded-hal 1.x to 1.0.0-alpha.6 2021-11-19 22:46:55 +00:00
Jonathan Pallant 68602fa6e1 0.1.6 had breaking changes, so I yanked it and made 0.2.0. 2021-11-19 22:30:43 +00:00
Jonathan Pallant 84b903b12a PAC 0.1.6 is now released. 2021-11-19 22:22:29 +00:00
Jan Niehusmann 0f3bb8e88c Update I2C implementation of embedded-hal 1.x to 1.0.0-alpha.6 2021-11-19 21:41:45 +00:00
Jan Niehusmann 76aff05cec Update dependency on embedded-hal 1.x to 1.0.0-alpha.6 2021-11-19 21:41:00 +00:00
Jonathan Pallant 038f792e21 Apply clippy's suggestions. 2021-11-19 17:38:32 +00:00
Jonathan Pallant 68014469dd Add SIO FIFO interface. 2021-11-19 17:19:04 +00:00
Jonathan Pallant 23bafb6980 Point at PAC release branch. 2021-11-19 12:22:52 +00:00
Jonathan Pallant 0a082c0f03 Changes to work with upcoming PAC 0.16. 2021-11-19 12:16:50 +00:00
Jan Niehusmann aafa3dd587 Keep old function as a deprecated alternative, for now 
Mainly so i2c-pio-rs doesn't fail, as it is used by examples.
Should be removed once i2c-pio-rs is updated.
 2021-11-16 22:27:08 +00:00
Jan Niehusmann 3756cd2fb5 Rename set_instruction to exec_instruction 2021-11-16 22:27:08 +00:00
Jonathan Pallant b9497d9b82 Resolve review comments. 
Adds same functions to RX FIFO.
 2021-11-16 21:45:52 +00:00
Jonathan Pallant 5c1bcd2604 Adds some useful functions when using PIO FIFOs with DMA. 2021-11-16 19:18:32 +00:00
contradict f9b3d8341d
Document properties needed for PIO Send safety (#190) 
Start to address #186 (Safety requirement must be verbosely advertised to not be overlooked in future changes).

#177 (Mark PIO StateMachine, Rx and Tx as Send) added the Send trait to StateMachine, Tx and Rx, That documentation was expanded as suggested.

PIO, UninitStateMachine, Interrupt were marked Send before #177, added some documentation to those as well.
 2021-11-10 21:55:37 +11:00
Wilfried Chauveau 620d5f0e0c
Use the PIOn peripherals in pin functions rather than creating an enum. (#193) 
This allows the `FuncionPio?` to be inferred from the `pac::PIO?` used.
This change shall be transparent for anyone using the `FunctionPio?` aliases.
 2021-11-10 21:27:46 +11:00
Wilfried Chauveau 990d964a93
Implement peripheral support for i2c and an advanced example (#162) 
* Implement peripheral support for i2c and an advanced example for the pico board.

* Simplify i2c peripheral bootstrap and add a "free" function to allow switching modes.

* Set dependency to futures & nostd_async to specific version/revision.

* move enum & struct to the start of the file

* Add a bit of documentation to the pico_i2c_controller_peripheral demo.

* Migrate to pico_i2c_controller_peripheral to embassy & simplify the peripheral support

nostd_async is broken since last stable roll out.
The pico_i2c_controller_peripheral is being migrated to use embassy's executor.
The Controller Async API is now aligned with embassy's traits to facilitate integration.

The peripheral no longer require async to run and now appears as an event iterator.

Embassy's support relies on unstable features (generic_associated_types and type_alias_impl_traits)
and is therefore gated behind the `embassy-traits` feature flag.

* make futures & embassy optional for the pico board too

* Pin embassy to a specific rev.

* Impl embassy_traits::i2c::WriteIter & enable unlimited transfer size on i2c

* Applies comment suggestion from @9names for the advanced i2c example.

Co-authored-by: 9names <60134748+9names@users.noreply.github.com>

* use `I2C block` instead of `IP`.

* Fix formatting (unnecessary space at end of line)

* Enhance explanation for why `rd_req()`  is not cleared in `Iterator::next`'s
implementation.

Co-authored-by: 9names <60134748+9names@users.noreply.github.com>
 2021-11-08 23:23:28 +11:00
Benno 6d917f498e
Change UART raw read return type and fix full read (#189) 
* UART read_raw returns bytes read

This also fixed broken read_full_blocking code.

* chang documentation to reflect return value change
 2021-11-01 10:24:24 +11:00
contradict fb69308058 Add methods to set and clear the PWM Interrupt force register. 2021-10-30 20:40:33 +11:00
Jan Niehusmann b1dc9aec8c Fix UART init code 
Set uartlcr_h before enabling the UART.
Writing uartlcr_h while the UART is enabled is forbidden by the datasheet.

Details can be found here:
https://developer.arm.com/documentation/ddi0183/g/programmers-model/register-descriptions/line-control-register--uartlcr-h?lang=en
(As referenced from the Datasheet)
 2021-10-30 10:19:13 +11:00
Jan Niehusmann 73431a847b
fix UART rx (#187) 2021-10-30 10:16:43 +11:00
contradict fe1e55b8c0
Mark PIO StateMachine, Rx and Tx as Send (#177) 
* Mark PIO StateMachine, Rx and Tx as Send

* Improve comment grammar.

Co-authored-by: Wilfried Chauveau <wilfried.chauveau@ithinuel.me>
 2021-10-27 21:34:08 +11:00
Wilfried Chauveau 73e2c6921f Make ReadableOutput public to match the visibility of other Type-level variant of PinMode. 2021-10-27 21:32:38 +11:00
Jan Niehusmann 9f55608f92 Correct limit for PIOBuilder::out_pins count argument 
This value is written to the PINCTRL register field
OUT_COUNT, which accoding to the data sheet has a valid range
of 0-32.

Fixes #181
 2021-10-23 13:34:05 +00:00
contradict 11aaf9be79
API to enable/disable interrupts for each PWM channel. (#175) 
* API to enable/disable interrupts for each PWM channel.

* Better name for overflow check.
 2021-10-23 22:47:08 +11:00
contradict 97079489ef Mark Timer as sync 
Since all accesses are read-only there is no synchronizing to be done.
 2021-10-23 00:03:30 +11:00
Jan Niehusmann 4c4d12e23c minor docs improvements in pio.rs 2021-10-22 23:52:14 +11:00
Jan Niehusmann bac6714f09
Use volatile register access for gpio interrupts (#170) 
* Use volatile register access for gpio interrupts

* Provide functions for atomic register updates

* Use atomic register access functions in pio.rs

* Improve doc comments

* Limit visibility of atomic register access functions

Also remove write_xor for now, as it's not yet used anywhere
 2021-10-22 23:30:30 +11:00
Wilfried Chauveau 0eb65ee99b
Add PIO features required for PIO as I2C support (#179) 
* Implements methods to allow presetting the pin state & direction

Enabling those methods allows to save a few valuable instructions
in the PIO's memory.

* Use IntoIterator rather than Iterator.

* Use proper types instead of bool to be more idiomatic.

* Change set_pindirs_with_mask to a more idiomatic rust approach.

* Update pio_proc_blink with new set_pindirs_with_iter

* Force reset on startup to guaranty consistency with type-states.

* Expose more accessors to allow more advanced driver to be implemented.

* Add the ability to restart the state machine from its wrap point.

This method also clears the ISR/OSR to give the state machine a clean
restart.

* Add a comment about the impact of autopull on OUT & PULL instructions

* Fix broken internal doc reference & add an important note on Tx<SM>::has_stalled

* rename block methods to register_block.

This change is made to avoid confusion with "block" as a verb.
 2021-10-22 22:09:10 +11:00
Wilfried Chauveau 2eb7923ebe
Implements methods to allow presetting the pin state & direction (#167) 
* Implements methods to allow presetting the pin state & direction

Enabling those methods allows to save a few valuable instructions
in the PIO's memory.

* Update pio_proc_blink with new set_pindirs
 2021-10-22 21:13:22 +11:00
Jonathan Pallant (42 Technology) e48323c983 Ah, missed one after the rebase. 2021-10-18 10:58:38 +01:00
Jonathan Pallant (42 Technology) 8e66ddcfb1 Switch to new rp2040-boot2 crate. 2021-10-18 10:53:17 +01:00
Rich Lane c8bb2e43c7 spi: support zero post-divide 
This allows you to use a 62.5 MHz SPI baud rate assuming the default 125
MHz peripheral clock. It would previously crash due to a division by
zero.
 2021-10-17 21:38:53 +11:00
Jonathan Pallant (42 Technology) 6a4a4fd247 Formatting. 2021-10-11 16:41:51 +01:00
Jonathan Pallant (42 Technology) 74ea262f65 Cleaning up the comment summaries. 2021-10-11 16:40:23 +01:00
Jonathan Pallant (42 Technology) 2423e42eb9 Clean up comments. 2021-10-11 16:39:12 +01:00
Jonathan Pallant (42 Technology) 5c55af76d2 Typo 2021-10-11 16:37:50 +01:00