Crate ftdi_embedded_hal

source ·
Expand description

This is an embedded-hal implementation for the FTDI chips that can use various drivers including libftd2xx and ftdi-rs.

This enables development of embedded device drivers without the use of a microcontroller. The FTDI devices interface with PC via USB, and provide a multi-protocol synchronous serial engine to interface with most GPIO, SPI, I2C embedded devices.

Note: This is strictly a development tool. The crate contains runtime borrow checks and explicit panics to adapt the FTDI device into the embedded-hal traits.

§Quickstart

  • Enable the “libftd2xx-static” feature flag to use static linking with libftd2xx driver.
  • Linux users only: Add udev rules.
[dependencies.ftdi-embedded-hal]
version = "0.22.0"
features = ["libftd2xx", "libftd2xx-static"]

§Limitations

  • Limited trait support: SPI, I2C, Delay, InputPin, and OutputPin traits are implemented.
  • Limited device support: FT232H, FT2232H, FT4232H.
  • Limited SPI modes support: MODE0, MODE2.

§Examples

§SPI

Pin setup:

  • D0 - SCK
  • D1 - SDO (MOSI)
  • D2 - SDI (MISO)
  • D3..D7 - Available for CS

Communicate with SPI devices using ftdi-rs driver:

use ftdi_embedded_hal as hal;

let device = ftdi::find_by_vid_pid(0x0403, 0x6010)
    .interface(ftdi::Interface::A)
    .open()?;

let hal = hal::FtHal::init_freq(device, 3_000_000)?;
let spi = hal.spi()?;

Communicate with SPI devices using libftd2xx driver:

use ftdi_embedded_hal as hal;

let device = libftd2xx::Ft2232h::with_description("Dual RS232-HS A")?;

let hal = hal::FtHal::init_freq(device, 3_000_000)?;
let spi = hal.spi()?;

§I2C

Communicate with I2C devices using ftdi-rs driver:

use ftdi_embedded_hal as hal;

let device = ftdi::find_by_vid_pid(0x0403, 0x6010)
    .interface(ftdi::Interface::A)
    .open()?;

let hal = hal::FtHal::init_freq(device, 400_000)?;
let i2c = hal.i2c()?;

Communicate with I2C devices using libftd2xx driver:

use ftdi_embedded_hal as hal;

let device = libftd2xx::Ft232h::with_description("Single RS232-HS")?;

let hal = hal::FtHal::init_freq(device, 400_000)?;
let i2c = hal.i2c()?;

§GPIO

Control GPIO pins using libftd2xx driver:

use ftdi_embedded_hal as hal;

let device = libftd2xx::Ft232h::with_description("Single RS232-HS")?;

let hal = hal::FtHal::init_default(device)?;
let gpio = hal.ad6();

Control GPIO pins using ftdi-rs driver:

use ftdi_embedded_hal as hal;

let device = ftdi::find_by_vid_pid(0x0403, 0x6010)
    .interface(ftdi::Interface::A)
    .open()?;

let hal = hal::FtHal::init_default(device)?;
let gpio = hal.ad6();

§More examples

Re-exports§

Structs§

Enums§