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feature: support configuration of sleep clock calibration frequency

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This commit is contained in:
wuzhenghui
2023-05-04 12:09:26 +08:00
parent dd4d1bbe90
commit dcab6368ce
2 changed files with 31 additions and 5 deletions
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22
components/esp_hw_support/sleep_modes.c
View File

@@ -150,7 +150,7 @@
static esp_deep_sleep_cb_t s_dslp_cb[MAX_DSLP_HOOKS]={0};
/**
* Internal structure which holds all requested deep sleep parameters
* Internal structure which holds all requested sleep parameters
*/
typedef struct {
struct {
@@ -180,6 +180,8 @@ typedef struct {
} sleep_config_t;
static uint32_t s_lightsleep_cnt = 0;
_Static_assert(22 >= SOC_RTCIO_PIN_COUNT, "Chip has more RTCIOs than 22, should increase ext1_rtc_gpio_mask field size");
static sleep_config_t s_config = {
@@ -703,7 +705,7 @@ static uint32_t IRAM_ATTR esp_sleep_start(uint32_t pd_flags, esp_sleep_mode_t mo
// re-enable UART output
resume_uarts();
s_lightsleep_cnt++;
return result;
}
@@ -903,8 +905,13 @@ esp_err_t esp_light_sleep_start(void)
s_config.rtc_clk_cal_period = rtc_clk_cal_cycling(RTC_CAL_RTC_MUX, RTC_CLK_SRC_CAL_CYCLES);
esp_clk_slowclk_cal_set(s_config.rtc_clk_cal_period);
#else
s_config.rtc_clk_cal_period = rtc_clk_cal(RTC_CAL_RTC_MUX, RTC_CLK_SRC_CAL_CYCLES);
esp_clk_slowclk_cal_set(s_config.rtc_clk_cal_period);
#if CONFIG_PM_ENABLE
if (s_lightsleep_cnt % CONFIG_PM_LIGHTSLEEP_RTC_OSC_CAL_INTERVAL == 0)
#endif
{
s_config.rtc_clk_cal_period = rtc_clk_cal(RTC_CAL_RTC_MUX, RTC_CLK_SRC_CAL_CYCLES);
esp_clk_slowclk_cal_set(s_config.rtc_clk_cal_period);
}
#endif
/*
@@ -916,7 +923,12 @@ esp_err_t esp_light_sleep_start(void)
*/
#if SOC_PMU_SUPPORTED
s_config.fast_clk_cal_period = rtc_clk_cal(RTC_CAL_RC_FAST, FAST_CLK_SRC_CAL_CYCLES);
#if CONFIG_PM_ENABLE
if (s_lightsleep_cnt % CONFIG_PM_LIGHTSLEEP_RTC_OSC_CAL_INTERVAL == 0)
#endif
{
s_config.fast_clk_cal_period = rtc_clk_cal(RTC_CAL_RC_FAST, FAST_CLK_SRC_CAL_CYCLES);
}
int sleep_time_sw_adjustment = LIGHT_SLEEP_TIME_OVERHEAD_US + sleep_time_overhead_in + s_config.sleep_time_overhead_out;
int sleep_time_hw_adjustment = pmu_sleep_calculate_hw_wait_time(pd_flags, s_config.rtc_clk_cal_period, s_config.fast_clk_cal_period);
s_config.sleep_time_adjustment = sleep_time_sw_adjustment + sleep_time_hw_adjustment;

14
components/esp_pm/Kconfig
View File

@@ -93,6 +93,20 @@ menu "Power Management"
This option is invisible to users, and it is only used for ci testing,
enabling it in the application will increase the sleep and wake-up time overhead
config PM_LIGHTSLEEP_RTC_OSC_CAL_INTERVAL
int "Calibrate the RTC_FAST/SLOW clock every N times of light sleep"
default 1
depends on PM_ENABLE
range 1 128
help
The value of this option determines the calibration interval of the RTC_FAST/SLOW clock during sleep when
power management is enabled. When it is configured as N, the RTC_FAST/SLOW clock will be calibrated
every N times of lightsleep.
Decreasing this value will increase the time the chip is in the active state, thereby increasing the
average power consumption of the chip.
Increasing this value can reduce the average power consumption, but when the external environment changes
drastically and the chip RTC_FAST/SLOW oscillator frequency drifts, it may cause system instability.
config PM_POWER_DOWN_CPU_IN_LIGHT_SLEEP
bool "Power down CPU in light sleep"
depends on IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32S3 || IDF_TARGET_ESP32C6