https://github.com/helium/ecc508

Library to communicate with the Microchip cryptoauthentication device
https://github.com/helium/ecc508

ecc608 erlang erlang-library i2c

Last synced: about 2 months ago
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Library to communicate with the Microchip cryptoauthentication device

• Host: GitHub
• URL: https://github.com/helium/ecc508
• Owner: helium
• License: apache-2.0
• Created: 2019-07-07T20:51:57.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2023-07-11T14:00:57.000Z (over 1 year ago)
• Last Synced: 2024-04-14T17:00:27.264Z (9 months ago)
• Topics: ecc608, erlang, erlang-library, i2c
• Language: Erlang
• Homepage:
• Size: 697 KB
• Stars: 12
• Watchers: 22
• Forks: 13
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE

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README

        
ecc508

=====

Note: the ECC608A or ECC608B is compliant with HIP-19. 

The other chips in this family: ATSHA204A · ATECC108A · ATECC508A are not compliant with HIP-19.

An OTP library for communicating with the [Microchip

ATECC608A](http://ww1.microchip.com/downloads/en/DeviceDoc/20005927A.pdf)

family of crypto-authentication devices.

Build

-----

    $ make

Use

---

You will need an ECC608A attached to an I2C bus on a board that has

I2C enabled, and can run Erlang.

For our most common use we wire up an ECC608A to a Raspberry Pi

configured for development and enable I2C using `raspi-config`.

Also install the Erlang development tools:

    $ sudo apt update

    $ sudo apt install erlang-nox erlang-dev i2c-tools

Once you've set up your Raspberry Pi and wired up the ECC608A you

should be able to see it using `i2cdetect`

    $ i2cdetect -y 1

    0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f

    00:          -- -- -- -- -- -- -- -- -- -- -- -- --

    10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

    20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

    30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

    40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

    50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

    60: 60 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

    70: -- -- -- -- -- -- -- --

This shows the ECC at address (hex) 60 on bus `i2c-1`.

For development purposes you can then clone this repository, and start

an Erlang shell to communicate with the ecc:

    $ git clone http://github.com/helium/ecc508

    $ cd ecc508

    $ ./rebar3 shell

    $ {ok, Pid} = ecc508:start_link().

Then check out the data-sheet linked above and the functions in the

eec508 module to see how to access the various functions of the

ECC608.