Anyone able to get the deep sleep wake stubs working for Arduino?
https://docs.espressif.com/projects/esp ... -stub.html
I am trying to reduce the wake up time of ESP32. Right now with no code and setting up sleep I am at 200ms. I would like to wake up from sleep run simple code and go back to sleep without going through a full reboot. I think I am getting a WDT reset after the RTC_IRAM_ATTR function for some reason. Any help would be great! Thanks
I have this function:
void RTC_IRAM_ATTR esp_wake_deep_sleep(void) {
esp_default_wake_deep_sleep();
esp_set_deep_sleep_wake_stub(&esp_wake_deep_sleep);
esp_sleep_enable_timer_wakeup(5 * 1000000);
// esp_task_wdt_reset();
esp_deep_sleep_start();
}
end of my setup code:
esp_set_deep_sleep_wake_stub(&esp_wake_deep_sleep);
esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * uS_TO_S_FACTOR);
esp_deep_sleep_start();
Output:
rst:0x5 (DEEPSLEEP_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
ets Jun 8 2016 00:22:57
rst:0x7 (TG0WDT_SYS_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1216
ho 0 tail 12 room 4
load:0x40078000,len:9720
ho 0 tail 12 room 4
load:0x40080400,len:6352
entry 0x400806b8
Deep Sleep Stub function? Sleep mode optimization TG0WDT_SYS_RESET
Re: Deep Sleep Stub function? Sleep mode optimization TG0WDT_SYS_RESET
I was able to get it to work using this code. Current code takes 25ms and sleeps. I will try to optimize and check current measurements. If I have to write the code below, may as well just use RTOS or ESP-IDE than Arduino IDE
Here is the link that answered my question:
https://gist.github.com/igrr/54f7fbe051 ... d7fbecfeab
Here is the link that answered my question:
https://gist.github.com/igrr/54f7fbe051 ... d7fbecfeab
Code: Select all
#include "driver/rtc_io.h"
#include "rom/ets_sys.h"
#include "rom/rtc.h"
#include "esp_attr.h"
#include "esp_sleep.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "soc/rtc.h"
#include "soc/rtc_cntl_reg.h"
#include "soc/rtc_io_reg.h"
#include "soc/timer_group_reg.h"
#include "soc/uart_reg.h"
#include <stdio.h>
#include <string.h>
RTC_IRAM_ATTR void deepsleep_for_us(uint64_t duration_us);
#define BLINK_GPIO GPIO_NUM_25
#define S_TO_NS 1000000ULL
// Boot counter value, stored in RTC_SLOW_MEM
static size_t RTC_DATA_ATTR boots;
static size_t RTC_DATA_ATTR max_boots;
// Function which runs after exit from deep sleep
static void RTC_IRAM_ATTR wake_stub();
void setup(){
}
void loop(void) {
if (rtc_get_reset_reason(0) == DEEPSLEEP_RESET) {
printf("I'm back! Wake up from (extended) deep sleep. Should be 60s elapsed.\n");
printf("Boot count=%d\n", boots);
while (1) {
;
}
} else {
printf("Not a deep sleep wake up\n");
}
printf("Going to deep sleep for 5x12=60s second\n");
boots = 0;
max_boots = 12;
// hold high during deep sleep
esp_sleep_pd_config(ESP_PD_DOMAIN_RTC_PERIPH, ESP_PD_OPTION_ON);
// Set the wake stub function
esp_set_deep_sleep_wake_stub(&wake_stub);
esp_sleep_enable_timer_wakeup(5 * S_TO_NS);
esp_deep_sleep_start();
}
static const char RTC_RODATA_ATTR wake_fmt_str[] = "count=%d\n";
static const char RTC_RODATA_ATTR sleep_fmt_str[] = "sleeping\n";
static void RTC_IRAM_ATTR wake_stub() {
// Increment the Boot counter
boots++;
// and print the Boot counter value:
ets_printf(wake_fmt_str, boots);
if (boots >= max_boots) {
// On revision 0 of ESP32, this function must be called:
esp_default_wake_deep_sleep();
// Return from the wake stub function to continue
// booting the firmware.
return;
}
// Print status
ets_printf(sleep_fmt_str);
// Wait for UART to end transmitting.
// feed the watchdog
REG_WRITE(TIMG_WDTFEED_REG(0), 1);
while (REG_GET_FIELD(UART_STATUS_REG(0), UART_ST_UTX_OUT)) {
}
deepsleep_for_us(5 * S_TO_NS);
// Set the pointer of the wake stub function.
REG_WRITE(RTC_ENTRY_ADDR_REG, (uint32_t)&wake_stub);
// Go to sleep.
CLEAR_PERI_REG_MASK(RTC_CNTL_STATE0_REG, RTC_CNTL_SLEEP_EN);
SET_PERI_REG_MASK(RTC_CNTL_STATE0_REG, RTC_CNTL_SLEEP_EN);
// A few CPU cycles may be necessary for the sleep to start...
while (true) {
;
}
// never reaches here.
}
// Comment out this line if you're using the internal RTC RC (150KHz) oscillator.
//#define USE_EXTERNAL_RTC_CRYSTAL
#ifdef USE_EXTERNAL_RTC_CRYSTAL
#define DEEP_SLEEP_TIME_OVERHEAD_US (650 + 100 * 240 / CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ)
#else
#define DEEP_SLEEP_TIME_OVERHEAD_US (250 + 100 * 240 / CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ)
#endif // USE_EXTERNAL_RTC_CRYSTAL
RTC_IRAM_ATTR void deepsleep_for_us(uint64_t duration_us) {
// Feed watchdog
REG_WRITE(TIMG_WDTFEED_REG(0), 1);
// Get RTC calibration
uint32_t period = REG_READ(RTC_SLOW_CLK_CAL_REG);
// Calculate sleep duration in microseconds
int64_t sleep_duration = (int64_t)duration_us - (int64_t)DEEP_SLEEP_TIME_OVERHEAD_US;
if (sleep_duration < 0) {
sleep_duration = 0;
}
// Convert microseconds to RTC clock cycles
int64_t rtc_count_delta = (sleep_duration << RTC_CLK_CAL_FRACT) / period;
// Feed watchdog
REG_WRITE(TIMG_WDTFEED_REG(0), 1);
// Get current RTC time
SET_PERI_REG_MASK(RTC_CNTL_TIME_UPDATE_REG, RTC_CNTL_TIME_UPDATE);
while (GET_PERI_REG_MASK(RTC_CNTL_TIME_UPDATE_REG, RTC_CNTL_TIME_VALID) == 0) {
ets_delay_us(1);
}
SET_PERI_REG_MASK(RTC_CNTL_INT_CLR_REG, RTC_CNTL_TIME_VALID_INT_CLR);
uint64_t now = READ_PERI_REG(RTC_CNTL_TIME0_REG);
now |= ((uint64_t)READ_PERI_REG(RTC_CNTL_TIME1_REG)) << 32;
// Set wakeup time
uint64_t future = now + rtc_count_delta;
WRITE_PERI_REG(RTC_CNTL_SLP_TIMER0_REG, future & UINT32_MAX);
WRITE_PERI_REG(RTC_CNTL_SLP_TIMER1_REG, future >> 32);
// Start RTC deepsleep timer
REG_SET_FIELD(RTC_CNTL_WAKEUP_STATE_REG, RTC_CNTL_WAKEUP_ENA, RTC_TIMER_TRIG_EN); // Wake up on timer
WRITE_PERI_REG(RTC_CNTL_SLP_REJECT_CONF_REG, 0); // Clear sleep rejection cause
// Go to sleep
CLEAR_PERI_REG_MASK(RTC_CNTL_STATE0_REG, RTC_CNTL_SLEEP_EN);
SET_PERI_REG_MASK(RTC_CNTL_STATE0_REG, RTC_CNTL_SLEEP_EN);
}
Re: Deep Sleep Stub function? Sleep mode optimization TG0WDT_SYS_RESET
Great that you found a solution. I'm curious to know, what is the consumption when the ESP32 is in this stub mode?
Is the same as deepsleep? Looks very interesting
Is the same as deepsleep? Looks very interesting
epdiy collaborator | http://fasani.de Fan of Espressif MCUs and electronic design
Re: Deep Sleep Stub function? Sleep mode optimization TG0WDT_SYS_RESET
Using a CurrentRanger / uCurrent tool, deep sleep it drops as low as 8uA and spikes to 17uA. (Most of the time hovers around 12uA). I have a LoRA module connected in sleep mode as well so remove at least 1uA for that.
So the answer is, 8-17uA but more likely 10-11uA in Deep-Sleep. I removed some of the printing functions in the above code and the delays and now the stub takes only 15ms. I have not measured the current during the 15ms spike but once it goes back to Deep Sleep the current is as expected.
Note: I have a PicoScope 5000, CurrentRanger, uCurrent Gold, CMicrotek uCP120, Fluke 179, Fluke 190-102 and still cannot good sleep current readings with so much noise... unless someone can help of course and point me in a good direction.
So the answer is, 8-17uA but more likely 10-11uA in Deep-Sleep. I removed some of the printing functions in the above code and the delays and now the stub takes only 15ms. I have not measured the current during the 15ms spike but once it goes back to Deep Sleep the current is as expected.
Note: I have a PicoScope 5000, CurrentRanger, uCurrent Gold, CMicrotek uCP120, Fluke 179, Fluke 190-102 and still cannot good sleep current readings with so much noise... unless someone can help of course and point me in a good direction.
Re: Deep Sleep Stub function? Sleep mode optimization TG0WDT_SYS_RESET
Great thanks for the information. That's a very good low consumption!
epdiy collaborator | http://fasani.de Fan of Espressif MCUs and electronic design
Re: Deep Sleep Stub function? Sleep mode optimization TG0WDT_SYS_RESET
I have a better way of measuring current now.
For the above code: The Wakeup and on time is 10ms. Avg Current during wake up time. is 14.67mA (Spikes to 30mA). Avg Current in sleep mode is 8.27uA - 9.85uA
For the above code: The Wakeup and on time is 10ms. Avg Current during wake up time. is 14.67mA (Spikes to 30mA). Avg Current in sleep mode is 8.27uA - 9.85uA
Re: Deep Sleep Stub function? Sleep mode optimization TG0WDT_SYS_RESET
brolly759, its Super!
but i cannot to implement my functiom to your code. i need this: while (digitalRead(_dataPin) == HIGH) delay(1)
but in result system is reset by WDT:
rst:0x7 (TG0WDT_SYS_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:1344
load:0x40078000,len:13516
load:0x40080400,len:3604
entry 0x400805f0
Please help me!!!
Re: Deep Sleep Stub function? Sleep mode optimization TG0WDT_SYS_RESET
Please help:
i need read after wake up stub: digitalRead(dataPin)
and then return to stub slep
but system reset by watchdog: rst:0x7 (TG0WDT_SYS_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
How to read GPIO input from a wake stub?
please help - i need working example
i need read after wake up stub: digitalRead(dataPin)
and then return to stub slep
but system reset by watchdog: rst:0x7 (TG0WDT_SYS_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
How to read GPIO input from a wake stub?
please help - i need working example
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- Posts: 1
- Joined: Sat Nov 11, 2023 11:49 am
Re: Deep Sleep Stub function? Sleep mode optimization TG0WDT_SYS_RESET
[quote from user brolly759, post_id=58428, time=1587092165, user_id=10867]
I want deep sleep wake stubs for Arduino. Currently, I'm utilizing the Espressif IoT Development Framework (IDF) with Arduino as a component. Could you please provide guidance on incorporating the code you shared into my project? I appreciate any assistance you can offer.
I want deep sleep wake stubs for Arduino. Currently, I'm utilizing the Espressif IoT Development Framework (IDF) with Arduino as a component. Could you please provide guidance on incorporating the code you shared into my project? I appreciate any assistance you can offer.
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