libpull / cryptoauthlib-hal

CryptoAuthLib HAL implementation for CC2650

CryptoAuthLib HAL

This repository contains a CryptoAuthLib HAL implementation for CC2650.

In the hal folder you will find two implementations, one direcly based on the cc26xxware implemenation provided by Texas Instruments and another using the Contiki i2c abstraction for the Sensortag board. The implemenation based on the Contiki primitives reduces the size of the HAL when used with a Contiki image.

This implementation has been tested with a TI Sensortag CC2650, the ATECC508A, and the ATSHA204A connected via the i2c bus.

You can find some examples on how to use this HAL in this repository.

cryptoauthlib-hal's Issues

Fix delay implementation

I noticed that while performing some operations (such as signature verification with ATECC508a) the final read used to get the final value fails. I think the problem is a delay problem due to the implementation of the timer. In fact, adding a delay during the initial implementation fixes the problem. However I need to investigate more to find a more reliable solution, maybe implementing the delay functions using directly the timer hw of the CC2650.

To finish this issue I should measure if:

• The delay implemented using the rtimer is working;
• Create another delay implementation using directly the driverlib/timer.