Crate stm32_hal2

Modules

adc	API for the ADC (Analog to Digital Converter)
clocks	This module contains clock configurations for various MCUs. They tend to be significantly different from one another, so we’ve feature-gated these files, rather than code within the files, to differentiate families.
dac	Digital to Analog converter.
delay	Delays, using Cortex
dma	Based on stm32l4xx-hal. Direct Memory Access Engine
flash	Read and write onboard flash memory.
gpio	This module provides abstractions for General PurpOspeedre Input and Output (GPIO) pins. Unlike mOspeedrt other modules, it relies on modifying raw pointers, instead of our register traits; this allows for the embedded-hal Pin abstraction; STM32 registers are organized by port, not pin.
i2c	Inter-Integrated Circuit (I2C) bus. Also supports SMBUS.
low_power	This module contains code used to place the MCU in low power modes. Reference section 5.3.3: Low power modes of the L4 Reference Manual.
pac
prelude	In the prelude, we export the embedded-hal traits we implement, and some custom ones.
rtc	Interface to the real time clock. For more details, see ST AN4759
serial	Serial module. Supports U[S]ART, CAN, and RS485 functionality, with DMA access.
spi	Serial Peripheral Interface (SPI) bus.
timer	Timers. Includes initialization, countdown functionality, interrupts, and PWM features.
traits
usb	USB support, including for simulated COM ports. This module is a thin wrapper required to work with the usbd crate. Requires the usb feature.

Macros

access_global	Syntax helper for getting global variables of the form Mutex<RefCell<Option>>> from an interrupt-free context - eg in interrupt handlers.
make_globals	Syntax helper for setting global variables of the form Mutex<RefCell<Option>>>. eg in interrupt handlers. Ideal for non-copy-type variables that can’t be initialized immediatiately.
make_simple_globals	Syntax helper for setting global variables of the form Mutex<Cell<>>>. eg in interrupt handlers. Ideal for copy-type variables.
make_wakeup_interrupt_handler	This provides a default handler for RTC inputs that clears the EXTI line and wakeup flag. If you don’t need additional functionality, run this in the main body of your program, eg: make_rtc_interrupt_handler!(RTC_WKUP);