Crate rp235x_hal

HAL for the Raspberry Pi RP235x microcontrollers

This is an implementation of the embedded-hal traits for the RP235x microcontrollers

NOTE This HAL is still under active development. This API will remain volatile until 1.0.0

Crate features

• critical-section-impl - critical section that is safe for multicore use
• defmt - Implement defmt::Format for several types.
• embedded_hal_1 - Support alpha release of embedded-hal
• rom-func-cache - Memoize(cache) ROM function pointers on first use to improve performance
• rt - Minimal startup / runtime for Cortex-M microcontrollers
• rtic-monotonic - Implement rtic_monotonic::Monotonic based on the RP2350 timer peripheral
• i2c-write-iter - Implement i2c_write_iter traits for I2C<_, _, Controller>.
• binary-info - Include a static variable containing picotool compatible binary info.

Re-exports

• pub extern crate fugit;
• pub use adc::Adc;
• pub use clocks::Clock;
• pub use i2c::I2C;
• pub use sio::Sio;
• pub use spi::Spi;
• pub use timer::Timer;
• pub use watchdog::Watchdog;
• pub use rp235x_pac as pac;
• pub use rp_binary_info as binary_info;

Modules

• adc
  Analog-Digital Converter (ADC)
• arch
  Portable in-line assembly
• async_utils
  Commonly used in async implementations.
• block
  Support for the RP235x Boot ROM’s “Block” structures
• clocks
  Clocks (CLOCKS)
• dcp
  Double-Co-Pro Support
• dma
  Direct memory access (DMA).
• gpio
  General Purpose Input and Output (GPIO)
• i2c
  Inter-Integrated Circuit (I2C) bus
• lposc
  Low Power Oscillator (ROSC)
• multicore
  Multicore support
• otp
  Interface to the RP2350’s One Time Programmable Memory
• pio
  Programmable IO (PIO)
• pll
  Phase-Locked Loops (PLL)
• powman
  POWMAN Support
• prelude
  Prelude
• pwm
  Pulse Width Modulation (PWM)
• reboot
  Functions for rebooting the chip using the ROM.
• resets
  Subsystem Resets
• rom_data
  Functions and data from the RPI Bootrom.
• rosc
  Ring Oscillator (ROSC)
• sio
  Single Cycle Input and Output (SIO)
• spi
  Serial Peripheral Interface (SPI)
• timer
  Timer Peripheral
• typelevel
  Module supporting type-level programming
• uart
  Universal Asynchronous Receiver Transmitter (UART)
• usb
  Universal Serial Bus (USB)
• vector_table
  Interrupt vector table utilities
• watchdog
  Watchdog
• xosc
  Crystal Oscillator (XOSC)

Macros

• bsp_pins
  Helper macro to give meaningful names to GPIO pins
• singleton
  Create a static variable which we can grab a mutable reference to exactly once.

Functions

• halt
  Halt the rp235x.
• reset
  Trigger full reset of the rp235x.

Attribute Macros

• arch_entry
  Called by the rp235x-specific entry macro
• entry
  Attribute to declare the entry point of the program