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snehal_p's avatar
snehal_p
Icon for Contributor rankContributor
3 years ago

interfacing RTC module to hps driven i2c pins

Hello, I need help in interfacing RTC 3231 breakout board to the hps driven pins. While trying to read the rtc I'm getting connection timed out. PFA screenshot for the error. Can anyone help wit...
tehjingy_Altera's avatar
tehjingy_Altera
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hi Snehal


For the RTC Module did you associate it to a kernel driver?

From the starting logs that the rtc is being registered under the kernel.

"[ 1.217136] rtc-ds1307 0-0068: setting system clock to 2000-04-24 05:56:41 UTC (956555801)"

That is why the address is showing UU when you are using the i2cget command.


Regarding the kernel hang, does it happen all the time?

I see that the uboot version is quite an outdate one. I would suggest you to use the latest uboot version(U-Boot 2022.04).


Regards

Jingyang, Teh



  • snehal_p's avatar
    snehal_p
    Icon for Contributor rankContributor
    3 years ago

    Hello Jingyang,

    Thanks, RTC detect sorted. but not able to read the correct date and time.PFA c code

    Kernel hang is still the issue at times, what could be the probable reason.

    Also can you help with the example code for RS232 with flow control.

    Thanks,

    snehal_p