How to talk with Real Time Clock hardware?

Hello all,

I raised this question in some forums. I think it is a common question when we write a program that will communicate with a hardware on the board. Unfortunately, there is no answer make me satisfactory!

Can you support me?

I have a board that integrates an Real Time Clock (RTC) chip. The RTC chip uses I2C protocol to read/write to its registers. Now, I want to use Python to access to the RTC chip.

Here is the information.

Chip RTC:
https://www.intersil.com/content/dam...1/isl12057.pdf

Board OS: Linux Yocto
Programming language: Python

If you have any know-how, please support me.

Thanks for any help.

Some years ago I used i2c-tools. There is a package in Ubuntu and I guess in most distributions. The home page is www.lm-sensors.org (although I've just tried the link and it seems to be down or too slow).

Regards,
Esteban

Thank you so much!

The homepage http://www.lm-sensors.org/ is slow, and I can not access to it!

But as I checked information of i2c-tools. It seems that SMBus is a way to talk with I2C device. I also believe that is one of method to talk with my RTC.

I am trying this method, unfortunately, there is still an issue that I am finding a solution, it is here

http://www.linuxquestions.org/questi...sy-4175599788/

If you have more idea, please give me. I really appreciate for any help.