[CLK-8588] 32 kHz Internal Slow RC Oscillator May Fail to Oscillate

Affected revisions: v0.0 v0.1 v0.2

Description

The 32 kHz internal slow RC oscillator (RC32K_CLK) may fail to oscillate in low-temperature scenarios, leading to malfunction in modules that rely on this clock.

For modules using RC32K_CLK, please refer to the ESP32-C6 Technical Reference Manual > Chapter Reset and Clock [PDF].

Workarounds

Use the 136 kHz internal slow RC oscillator (RC_SLOW_CLK). For more information, please refer to AR2024-011 Usage Instructions for Internal 32kHz RC Oscillator Clock Source in ESP32-C6 and Precautions for Changing the System Slow Clock Source via OTA.

Solution

No fix scheduled.