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Author SHA1 Message Date
Derek Hageman b8ef969d92 Generate intrinsic aliases directly 
Using the full module structure generated by the intrinsics macro
interacts oddly with inlining on some optimization levels, causing
a duplicate identical function body to be generated.  This doesn't
affect performance, but it wastes space, so just declare the alias
directly which seems to cause the symbol to be aliased as it should
be.
 2022-04-12 08:50:56 -06:00
Jan Niehusmann f67b650bb3
Remove some unused fields from UartPeripheral and Reader (#315) 
* Remove unused field `effective_baudrate` from uart code

* Remove unused field `config` from uart code
 2022-03-18 20:57:45 +11:00
Marius Meißner 990085948a
Using thread send safe UART* marker, as suggested by @danielzfranklin in #Issue-284 (#314) 2022-03-18 20:56:27 +11:00
Jan Niehusmann 6026ea4ae3
Allow to start multiple state machines in sync (#301) 
* add example of synchronized PIOs

* Synchronize state machines using WAIT IRQ instruction

* Use "irq wait 0" instead of "wait 1 irq 0"

This way, the initial value of the interrupt flag doesn't matter

* Start state machines synchronized without IRQ WAIT instruction

* Improve API

Co-authored-by: Andrew Straw <strawman@astraw.com>
 2022-03-18 20:55:31 +11:00
Jan Niehusmann f8de8755cc
Add an rp2040 specific #[entry] macro. (#300) 
* Add an rp2040 specific #[entry] macro.

This macro extends the one from cortex-m-rt by code to unlock
all spinlocks on boot.

* Idiomatic pointer arithmetic

Apply suggestion by @9names, improving address calculations.
(This doesn't change the generated code at opt levels 2 or "z".)

Co-authored-by: 9names <60134748+9names@users.noreply.github.com>
 2022-03-13 12:35:59 +11:00
9names 7aefb8680d
Update BSPs prior to release (#313) 
* Update BSP authors to include 'rp-rs developers'

* Update BSP readme's to reflect current release version

* Update BSP changelogs

* Fix version number in HAL README
 2022-03-12 22:43:16 +11:00
9names b81955c2a8
Prep for 0.4.0 release (#312) 
* Update changelog for 0.4.0 release

* Enable rt feature for irq example in Cargo.toml

* Bump pio/pio-proc deps to 0.2.0, update pio examples

* Update BSPs to latest ws2812-pio, remove unused pio dep

* Fix usage of pio_proc in doc comment

* Clean up pio doc-example

* Update rp-pico to latest i2c-pio

Co-authored-by: Jan Niehusmann <jan@gondor.com>
 2022-03-11 22:37:34 +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