Crate stm32f1xx_hal

HAL for the STM32F1 family of microcontrollers

This is an implementation of the embedded-hal traits for the STM32F1 family of microcontrollers.

Usage

Building an application (binary crate)

A detailed usage guide can be found in the README

supported microcontrollers are:

• stm32f103
• stm32f101
• stm32f100
• stm32f105
• stm32f107

Usage

This crate supports multiple microcontrollers in the stm32f1 family. Which specific microcontroller you want to build for has to be specified with a feature, for example stm32f103.

If no microcontroller is specified, the crate will not compile.

The currently supported variants are

• stm32f100
• stm32f101
• stm32f103
• stm32f105
• stm32f107

You may also need to specify the density of the device with medium, high or xl to enable certain peripherals. Generally the density can be determined by the 2nd character after the number in the device name (i.e. For STM32F103C6U, the 6 indicates a low-density device) but check the datasheet or CubeMX to be sure.

• 4, 6 => low density, no feature required
• 8, B => medium feature
• C, D, E => high feature
• F, G => xl feature

Commonly used setup

Almost all peripherals require references to some registers in RCC and AFIO. The following code shows how to set up those registers

// Get access to the device specific peripherals from the peripheral access crate
let dp = pac::Peripherals::take().unwrap();

// Take ownership over the raw flash and rcc devices and convert them into the corresponding
// HAL structs
let mut flash = dp.FLASH.constrain();
let mut rcc = dp.RCC.constrain();

// Freeze the configuration of all the clocks in the system and store the frozen frequencies in
// `clocks`
let clocks = rcc.cfgr.freeze(&mut flash.acr);

// Prepare the alternate function I/O registers
let mut afio = dp.AFIO.constrain(&mut rcc.apb2);

Usage examples

See the examples folder.

Most of the examples require the following additional dependencies

[dependencies]
embedded-hal = "0.2.3"
nb = "0.1.2"
cortex-m = "0.6.2"
cortex-m-rt = "0.6.11"
# Panic behaviour, see https://crates.io/keywords/panic-impl for alternatives
panic-halt = "0.2.0"

Modules

adc	API for the Analog to Digital converter
afio	Alternate Function I/Os
backup_domain	Registers that are not reset as long as Vbat or Vdd has power.
bb	Bit banding
crc	CRC
delay	Delays
device
dma	Direct Memory Access
flash	Flash memory
gpio	General Purpose I/Os
i2c	Inter-Integrated Circuit (I2C) bus
pac
prelude
pwm	Pulse width modulation
pwm_input	This module allows Timer peripherals to be configured as pwm input. In this mode, the timer sample a squared signal to find it's frequency and duty cycle.
qei
rcc	Reset & Control Clock
rtc	Real time clock
serial	Serial Communication (USART)
spi	Serial Peripheral Interface
stm32
time	Time units
timer	Timer
usb	USB peripheral
watchdog	Watchdog peripherals