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Author SHA1 Message Date
Mathias Gottschlag 4d97d9fe75 pio: Enable code sharing between SMs via objects for installed programs. 
Multiple state machines may want to execute the same program (e.g., two
state machines are used to implement two I2C buses), in which code sharing
saves space.
 2021-09-28 20:27:40 +02:00
Mathias Gottschlag 959f714fb9 pio: Fix marking used instruction space. 2021-09-28 20:27:40 +02:00
Mathias Gottschlag 2ff9ae156f pio: Fix some doc comments. 2021-09-28 20:27:40 +02:00
Mathias Gottschlag e5a7c325b0 pio: Split PIO into multiple objects that can be moved around separately. 
One PIO block often implements multiple functions that are used in
different parts of the codebase. Previously, that would be impossible, as
PIO contained all StateMachine instances.

Now, StateMachine instances use atomic operations whenever accessing shared
registers, so they can be used concurrently.
 2021-09-28 20:27:22 +02:00
Jonathan Pallant da89888ccb
Merge pull request #137 from 42-technology-ltd/ensure-hal-examples-non-board-specific 
Working on README and examples
 2021-09-28 10:46:42 +01:00
Jonathan Pallant (42 Technology) fc0075a381 Addressing review comments. 2021-09-28 09:26:31 +01:00
Jonathan Pallant (42 Technology) 0beedde69b Ugh. Thanks, rustfmt. 2021-09-27 19:03:07 +01:00
Jonathan Pallant (42 Technology) d251627e47 Make trait comments more consistent. 2021-09-27 19:01:46 +01:00
Jonathan Pallant (42 Technology) 8876159687 Ah, rustfmt. 2021-09-27 18:58:16 +01:00
Jonathan Pallant (42 Technology) c04f439020 Polish the watchdog example. 2021-09-27 18:57:19 +01:00
Jonathan Pallant (42 Technology) b005128a73 Oh, make sure uart example actually builds. 2021-09-27 18:57:10 +01:00
Jonathan Pallant (42 Technology) 7e03772687 Polish the UART example. 2021-09-27 18:52:13 +01:00
Jonathan Pallant (42 Technology) b894ab9ce7 Cleaning up. 2021-09-27 18:43:01 +01:00
Jonathan Pallant (42 Technology) 225eabb449 Use peripheral clock to describe the clock signal given to peripherals. 2021-09-27 18:42:36 +01:00
Jonathan Pallant (42 Technology) 17afa25d2a Polish PWM blink example. 2021-09-27 18:37:29 +01:00
Jonathan Pallant (42 Technology) b370bb5270 Polish SPI example. 2021-09-27 18:37:20 +01:00
Jonathan Pallant (42 Technology) 0336458344 Update LCD example. 2021-09-27 18:14:54 +01:00
Jonathan Pallant (42 Technology) b7acc7c373 Polish I2C example. 2021-09-27 17:30:29 +01:00
Jonathan Pallant (42 Technology) 193972bb9f Polish GPIO example. 2021-09-27 17:30:18 +01:00
Jonathan Pallant (42 Technology) d5a07bc398 Remove hard coded clock speed from blink example. 2021-09-27 17:30:06 +01:00
Jonathan Pallant (42 Technology) 07c183a636 Remove hard coded clock speed from ADC example. 2021-09-27 17:29:50 +01:00
Jonathan Pallant 77787e760d
Merge pull request #133 from jannic/pio-blinky-example 
Add a simple example for PIO.
 2021-09-27 15:35:26 +01:00
Jonathan Pallant (42 Technology) b0bcbe68d8 Update blinky example. 2021-09-27 14:47:25 +01:00
Jonathan Pallant (42 Technology) ed27dc9949 Update ADC example. 2021-09-27 14:42:19 +01:00
Jonathan Pallant (42 Technology) 0fa6bf9e0e README updates. 
Trying to clarify what is HAL specific and what is RP specific.
 2021-09-27 14:32:11 +01:00
Jan Niehusmann fbe2a8834f Update comment on top of pio_blink.rs 2021-09-27 12:36:23 +00:00
Jan Niehusmann c93ea0b97c Update comments in examples/pio_blink.rs 2021-09-26 13:51:48 +00:00
Jan Niehusmann 105dcfddd7
Implement bus keep inputs, as documented in C SDK (#134) 
When both pull-up and pull-down are enabled, the RP2040 enters a
so-called "bus keep" function, which uses a weak pull to tue current
high/low state of the GPIO.

See for example
https://raspberrypi.github.io/pico-sdk-doxygen/group__hardware__gpio.html#gab6bf9552da32b3dd0a5d0db45d8374fc
 2021-09-26 23:38:07 +10:00
Rob Young d93c4fc4c8
Implement RngCore for RingOscillator (#135) 
Implement rand_core::RngCore for RingOscillator from the get_random_bit
function. This is not suitable for security purposes so
rand_core::CryptoRng has not been implemented.
 2021-09-26 20:51:01 +10:00
Jan Niehusmann b79f859d72 Add a simple example for PIO. 2021-09-25 13:22:13 +00:00
9names b0c15ccc77
Update changelog and bump verson for hal release 0.3.0 (#121) 
* Update CHANGELOG.md and Cargo.toml for release 0.3.0

* Bump BSP hal dep version
 2021-09-22 20:43:30 +10:00
Jonathan Nilsson be4a7e0498
Make Spi::set_baudrate public (#116) 2021-09-22 20:41:21 +10:00
Jonathan Pallant (42 Technology) 3e036cf9b0 Polishing the blinky examples. 2021-09-21 10:03:47 +01:00
Henrik Lievonen 904b6f0ab9
Implement GPIO override (#123) 
* Implement GPIO override

Interrupt status, input, output enable and output can be overridden.
See documentation for GPIO0_CTRL.

* Fix override enum names

* Use override_value instead of raw identifier
 2021-09-20 19:38:12 +10:00
Henrik Lievonen 25e477b73e
Fix PWM set/clr_inverted (#122) 2021-09-20 12:20:42 +10:00
9names ac7a17f6e1
Add doc example for i2c (#112) 2021-09-19 22:34:11 +10:00
9names 0942a170f1
Add basic SPI example (#113) 2021-09-19 22:33:36 +10:00
Wilfried Chauveau 1d5dd15092 Work around enumeration issues with small ep0 max packet size. 
Prevents DataIn of the previous request from being sent to the host when
a new setup is received.
 2021-09-19 22:27:17 +10:00
9names 98b8e3ae9c
Handle usb interrupt flags in driver (#106) 
Set interrupt enable flags in USB driver. The flags were already being cleared in the USB driver.
Update USB examples to remove interrupt flag set/check as it is no longer necessary.
 2021-09-17 09:40:10 +10:00
Wilfried Chauveau c509b9d22f
Add embedded_hal::timer support (#110) 
* Add embedded_hal::timer support

* fixup: add pico countdown based blinky example & rework get_counter(&self) -> u16
 2021-09-16 18:47:34 +10:00
Gus Caplan 833b69819e use pio instruction encoding apis 2021-09-16 17:40:25 +10:00
Jonathan Nilsson b399c96cf5
Fixed u8 overflow in spi with large postdiv (#111) 2021-09-16 10:12:58 +10:00
Henrik Lievonen d941f5637b
PIO support (#74) 
Initial implementation of PIO 

Add all of the infrastructure required to include PIO programs and interact with PIO peripheral registers.
This was a massive effort between @devsnek and @henkkuli. It's great that it's now ready to go.

Co-authored-by: Gus Caplan <me@gus.host>
 2021-09-16 00:32:00 +10:00
Jonathan Nilsson 8a42d6cf8a
Update pac so we can use rt 0.7 (#107) 
* Update pac so we can use rt 0.7

* Update pac in all board crates
 2021-09-15 15:07:25 +10:00
9names 7afa19a82b
Usb fixes (#104) 
* Remove check for ep0 buffer.len == 64

* Simplify EP buffer check
 2021-09-11 18:31:45 +10:00
Jonathan Nilsson 0e5d582363 Fix adc giving wrong values on sequential reads of multiple channels 2021-09-10 20:34:24 +10:00
Wilfried Chauveau db11231f49
Implement usb_device for rp2040 (#98) 
Implement usb_device for rp2040

Limitations
- RP2040-E5 (Device enumeration workaround) is not implemented
- Suspend/resume is not implemented
- VBus detection is not tested and may not be fully implemented
 2021-09-09 17:55:30 +10:00
9names 9d2e18dc70
Add ADC example and doc-example (#93) 2021-09-02 22:40:13 +10:00
9names 301281cba8
i2c lockup fix (#94) 
* Fix check for empty tx-fifo

* Add read trait

* Move from asserts to Err for read/write errors
 2021-09-02 22:34:12 +10:00
Hmvp ffa39f65f5
Pwm improvements (#61) 
* Reimplement PWM driver using typestates
* Improve docs
 2021-09-02 09:37:17 +10:00