topic Re: Using external RTC from SCFW in IMX8QXP based board in i.MX Processors

Using external RTC from SCFW in IMX8QXP based board

_asif_muhammed_ — Mon, 29 Jan 2024 09:11:02 GMT

Hi,

I have an external RTC on my custom board, which is connected to the SCU I2C. Could someone please confirm whether I can use it or not from SCFW?

Will I be only able to use the SNVS RTC from SCFW?

Will there be any internal driver which can communicate to an external RTC? Could someone please point me in the right direction?

Bio_TICFSL — Mon, 29 Jan 2024 15:20:41 GMT

Hello,

Should it be SC_R_SNVS (since that's where the RTC is located). Please check it:

Regards

_asif_muhammed_ — Wed, 31 Jan 2024 04:58:02 GMT

Thank you Bio_TICFSL.I have gone through the document. It seems that it is an internal RTC of SNVS.

Is it possible to interface an external RTC to the SCU via the SCU_I2C?