Crate daisy

Rust no_std, embedded_hal board support package for the Electro-Smith Daisy platform.

• Documentation
• Crate (crates.io)
• Repository (github.com)

Supported boards

Currently this library supports following boards:

• Daisy Seed (codec AK4556), seed
• Daisy Seed 1.1 (codec WM8731), seed_1_1
• Daisy Seed 1.2 (codec PCM3060), seed_1_2
• Daisy Patch SM (codec PCM3060), patch_sm

Select the board by using its respective feature.

Sampling rate

By default, the audio sampling rate is set to 48 kHz. This can be increased to 96 kHz by enabling the sampling_rate_96khz feature.

API stability

I am still trying to figure out a good API for the project. Expect it to change. To mitigate breakage of your code on library update, use macros defined under board.rs to initialize resources whenever possible.

HAL compatibility

This library is closely tied to stm32h7xx-hal. Make sure to use compatible versions in your Cargo.toml.

Daisy	HAL
0.9	0.15
0.8	0.14
0.2-0.7	0.12
0.1	0.11

Usage

See the examples/ directory to find usage examples:

• ADC
• Audio
• Audio with RTIC
• Blinky
• Blinky with RTIC
• Flash storage
• OLED display
• SDRAM memory
• SD card

make flash WHAT=blinky BOARD=seed_1_1

Re-exports

• pub use board::Board;
• pub use stm32h7xx_hal as hal;

Modules

• audio
  Interrupt-driven access to the audio interface.
• board
  Top-level abstraction of the board used to split out its sub-interfaces.
• clocks
  Configuration of the onboard clock to accomodate for typical usage focused on high-performance audio processing.
• flash
  Basic driver for IS25LP064 providing access to the on-board flash storage.
• led
  Simple abstraction of the on-board status LED.
• pac
  Peripheral access API for STM32H743 microcontrollers (generated using svd2rust v0.24.1 ( ))
• pins
  Mapping of both internal and external pins.
• sdram
  Configuration of and access to the on-board SDRAM memory.

Macros

• board_freeze_clocks
  Configure clocks and retrieve a CCDR handle.
• board_split_audio
  Configure audio codec and return its handle.
• board_split_flash
  Configure flash storage and retrieve a handle to it.
• board_split_gpios
  Retrieve access to all GPIO for external pins and on-board peripherals.
• board_split_leds
  Allow access to the on-board LED.
• board_split_sdram
  Configure SDRAM memory and retrieve its handle.