ESP32 Forum

Posted: **Sat Mar 14, 2026 8:43 pm**

Hi, did you know how to "calibrate" RTC_SLOW_CLK with arbitrates values ?

I want to make some jitters inside ULP/RISC-V.

Thanks,
8^)

Posted: **Sat Mar 14, 2026 8:59 pm**

In fact with someting like :

REG_SET_FIELD(TIMG_RTCCALICFG2_REG(0), RTC_CNTL_SCK_DCAP, rand());

???

make some jitters inside ULP/RISC-V.