Crate rp2040_hal

HAL for the RP2040 microcontroller

This is an implementation of the embedded-hal traits for the RP2040 microcontroller

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

Crate features

• chrono - Modifies some RTC access functions to use chrono types instead of a rp2040-hal specific DateTime type
• critical-section-impl - critical section that is safe for multicore use
• defmt - Implement defmt::Format for several types.
• disable-intrinsics - Disable automatic mapping of language features (like floating point math) to ROM functions
• eh1_0_alpha - 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
• rom-v2-intrinsics - This enables ROM functions for f64 math that were not present in the earliest RP2040s
• rp2040-e5 - This enables a fix for USB errata 5: USB device fails to exit RESET state on busy USB bus. Only required for RP2040 B0 and RP2040 B1, but it also works for RP2040 B2 and above
• rtic-monotonic - Implement rtic_monotonic::Monotonic based on the RP2040 timer peripheral

Re-exports

• pub extern crate rp2040_pac as pac;
• pub use paste;
• 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;

Modules

• adc
  Analog-Digital Converter (ADC)
• clocks
  Clocks (CLOCKS)
• dma
  Direct memory access (DMA).
• gpio
  General Purpose Input and Output (GPIO)
• i2c
  Inter-Integrated Circuit (I2C) bus
• multicore
  Multicore support
• pio
  Programmable IO (PIO) See Chapter 3 of the datasheet for more details.
• pll
  Phase-Locked Loops (PLL)
• prelude
  Prelude
• pwm
  Pulse Width Modulation (PWM)
• resets
  Subsystem Resets
• rom_data
  Functions and data from the RPI Bootrom.
• rosc
  Ring Oscillator (ROSC)
• rtc
  Real time clock functionality
• sio
  Single Cycle Input and Output (SIO)
• spi
  Serial Peripheral Interface (SPI)
• ssi
  Synchronous Serial Interface (SSI)
• 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

Attribute Macros

• entry
  Attribute to declare the entry point of the program