AM2432: One wire interface using GPIO configuration

Hi Kadam,

Can you please tell us, what is the use case here to implement one wire interface?

Can you not use I2C for communication in your system?

Regards,

Tushar

Hi Tushar,

We are planning to upgrade the microcontroller used in our existing design. That’s why we wanted to confirm whether it’s possible to implement a 1-Wire interface with the new microcontroller.

Regards,

Kadam 

Hi Kadam, 

Please allow some time to check this internally and revert back.

Regards,

Tushar

Hello Kadam,

The  AM243x does not provide a dedicated One-Wire peripheral. One-Wire can be implemented by bit-banging a GPIO .
When implementing, you must maintain the precise Reset / Presence and ON/OFF bit slot timing windows required by One-Wire devices .My suggestion is go with simple state machine to implement the One wire protocol  implementation for the  RESET - > CMD - > Data slots .

Regards,

Anil.