#ftdi #usb #io #hal

ftdi-embedded-hal

embedded-hal implementation for FTDI USB devices

9 releases (breaking)

0.17.0 Aug 16, 2023
0.16.0 Jul 6, 2023
0.15.1 May 13, 2023
0.14.0 Nov 27, 2022
0.10.0 Nov 9, 2021

#82 in Embedded development

Download history 38/week @ 2023-06-05 35/week @ 2023-06-12 46/week @ 2023-06-19 35/week @ 2023-06-26 74/week @ 2023-07-03 36/week @ 2023-07-10 35/week @ 2023-07-17 41/week @ 2023-07-24 82/week @ 2023-07-31 41/week @ 2023-08-07 84/week @ 2023-08-14 36/week @ 2023-08-21 45/week @ 2023-08-28 68/week @ 2023-09-04 42/week @ 2023-09-11 37/week @ 2023-09-18

195 downloads per month
Used in 2 crates

MIT license

72KB
1.5K SLoC

Maintenance crates.io docs.rs Build Status

ftdi-embedded-hal

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 = "0.17.0"
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

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

Dependencies

~0.2–1.5MB
~17K SLoC