Constant esp_idf_sys::soc_module_clk_t_SOC_MOD_CLK_RC_FAST

pub const soc_module_clk_t_SOC_MOD_CLK_RC_FAST: soc_module_clk_t = 8;

< RC_FAST_CLK comes from the internal 20MHz rc oscillator, passing a clock gating to the peripherals