Where is I2C code?

[seamusdemora]

Hello,

I'm looking for a non-Arduino library for the RV3028. Your repo seems to provide that, but when I looked through the source code I couldn't find any reference to I2C interface?? There is a bit in rtc_rv3028.h that has a #include <inttypes.h>... I thought it might be in there, but that file wasn't included.

I'm looking for a general library that I can use with a uController... maybe this isn't what I'm looking for??

Thanks for your time,
~Seamus

[gfcwfzkm]

Hi!

This is indeed a non-repo library for the RV3028 RTC chip. There is a I2C interface that has to be initialized first before using the library. Since I have written the library as generic as possible (so without any ties to any specific microcontroller or architecture), it doesn't know the I2C functions by default. You need to pass your I2C functions as a function pointer to the function rv3028_initStruct.

The Readme has a example where this is done. If you want to know how these I2C functions are implemented, please take a look at INTERFACE.md for the general I/O interface idea I am using in my libraries as well as a example implementation for a RISC-V microcontroller.

If you have any additional questions, feel free to bring them :)
~gfc

[seamusdemora]

If you have any additional questions, feel free to bring them :)

Hey! Thanks for the follow-up. I've just read this, and haven't looked at INTERFACE.md yet, but one question has "popped up": The 'generic' approach makes sense to me (not being proficient in C); but does this mean that I could use the i2ctools utilities (i.e. i2cget and i2cset) for that?

[gfcwfzkm]

I'm not familiar with these tools but I know that it should work under linux using the i2c-dev libraries. You just need to write a little wrapper functions that make the connection between my interface and the i2c-dev's I2C interface.

[seamusdemora]

I'm not familiar with these tools but I know that it should work under linux using the i2c-dev libraries. You just need to write a little wrapper functions that make the connection between my interface and the i2c-dev's I2C interface.

That will help! I'll follow up if I have questions... and thanks!