Commit graph

377 commits

Author SHA1 Message Date
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
Jonathan 'theJPster' Pallant 9d56062e44
Merge pull request #201 from rp-rs/rename-gpio23
GPIO23 actually controls the 'power save' function on the SMPS.
2021-11-16 23:04:08 +00:00
Jonathan Pallant ffffa7368a Set button as pull-up. 2021-11-16 22:47:30 +00:00
Jonathan Pallant ac88d89939 Fix-up the examples and BSPs.
On the Pico Lipo GPIO23 is actually the boot mode select switch.
2021-11-16 22:46:35 +00:00
Jonathan Pallant cc612b89fd GPIO23 actually controls the 'power save' function on the SMPS.
If GPIO23 is low, the power supply is in low-power mode. But it
generates some noise. If GPIO23 is high, the power supply is less
efficient, but it generates less noise too.
2021-11-16 22:46:35 +00:00
Jonathan 'theJPster' Pallant 1541e0dfa4
Merge pull request #200 from rp-rs/pio_helpers
PIO helper functions
2021-11-16 22:45:20 +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
Wilfried Chauveau 4ccf71a6de
Bump to latest ws2812 driver's revision.
This change makes the ws2812 driver take ownership of the pin rather than
its id.
2021-11-15 23:21:30 +00:00
Damian Pound 3977bdd8c5 Add --locked to second cargo install elf2uf2-rs 2021-11-11 08:24:53 +11:00
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 c396423474
pin ws2812-pio to a specific sha (#195)
This will help future update of the driver without breaking rp-hal's main
branch.
2021-11-10 21:50:16 +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
Andrew Christiansen 612c44db46
Adafruit ItsyBitsy RP2040 Board Support Package (#192)
* Created an itsy bitsy rp2040 board support package adapted from the bsp of the qt py rp2040. Special thanks to ithinuel for help in matrix

* Changed the board description so it doesn't match the qt py rp2040

* Changed blinky.rs to itsy_bitsy_blinky.rs and ran changes through cargo fmt
2021-11-08 09:19:35 +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
Jonathan 'theJPster' Pallant 3b019fb91d
Merge pull request #182 from jannic/issue-181
Correct limit for PIOBuilder::out_pins count argument
2021-10-25 13:17:05 +01:00
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
Wilfried Chauveau 46e580b852
Adds an example of using the PIO as I2C driver to control an LM75B temperature sensor (#180)
* Add pico_i2c_pio example

* Update pico_i2c_pio's main function documentation

* Update bootloader reference.

* Implement uart output for the pico_i2c_pio example.

* pin to a specific rev of i2c-pio

* Bump i2c-pio to get the fix for write_read
2021-10-23 22:45:13 +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
Jan Niehusmann 233f7c9475 README: Add option --locked to cargo install elf2uf2-rs
Without the --locked option, cargo currently tries to compile it using
clap v3.0.0-beta.5, which fails:

```
[...]
   Compiling clap v3.0.0-beta.5
   Compiling elf2uf2-rs v1.3.5
error[E0432]: unresolved import `clap::Clap`
 -->
/home/jan/.cargo/registry/src/github.com-1ecc6299db9ec823/elf2uf2-rs-1.3.5/src/main.rs:3:5
  |
3 | use clap::Clap;
  |     ^^^^^^^^^^ no `Clap` in the root
[...]
```

With --locked, it uses clap v3.0.0-beta.4, which works.
2021-10-22 00:01:47 +11:00
Jonathan Pallant 6330dab44e
Merge pull request #171 from 42-technology-ltd/update_boot2
Switch to new rp2040-boot2 crate.
2021-10-18 11:45:32 +01:00
Jonathan Pallant (42 Technology) e48323c983 Ah, missed one after the rebase. 2021-10-18 10:58:38 +01:00
Jonathan Pallant (42 Technology) e3f9125a87 Can we build without GCC now? 2021-10-18 10:56:30 +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 dd4a9a8f22
Merge pull request #165 from 42-technology-ltd/bootrom_functions_update
Bootrom functions update
2021-10-13 15:09:24 +01:00
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
Jonathan Pallant (42 Technology) e1afb70bd2 Moved float and double functions into modules.
Makes the docs cleaner.
2021-10-11 16:37:16 +01:00
Jonathan Pallant (42 Technology) ae66ac4cb6 Tweak doc comments. 2021-10-11 16:22:35 +01:00