manuelbl
commented
1 year ago - Which code are you running? The
deep_sleepexample? The C or the C++ version? - What ESP-IDF version are you using?
- What hardware are you using?
Can you run the below program to check if RTC memory and NVS are working correctly?
#include <string.h>
#include "sdkconfig.h"
#include "freertos/FreeRTOS.h"
#include "nvs_flash.h"
#include "esp_sleep.h"
#include "esp_log.h"
#define TTN_RTC_FLAG_VALUE 0xf30b84ce
#define NVS_FLASH_PARTITION "ttn"
#define NVS_FLASH_KEY "key"
#define TTN_NVS_VALUE 1002
#define TAG "deepsleep_test"
void ttn_nvs_save();
bool ttn_nvs_restore();
RTC_DATA_ATTR int counter_in_rtc_mem;
RTC_DATA_ATTR uint32_t ttn_rtc_flag;
int nvs_value = 0;
void app_main(void)
{
esp_err_t err = nvs_flash_init();
ESP_ERROR_CHECK(err);
if (ttn_rtc_flag != TTN_RTC_FLAG_VALUE) {
printf("Woke up from reset\n");
counter_in_rtc_mem = 0;
ttn_rtc_flag = TTN_RTC_FLAG_VALUE;
nvs_value = TTN_NVS_VALUE;
ttn_nvs_save();
printf("Saved value to NVS: %d\n", nvs_value);
} else {
counter_in_rtc_mem++;
printf("Woke up from deep sleep: counter = %d\n", counter_in_rtc_mem);
if (ttn_nvs_restore()) {
printf("Successfully read value from NVS: %d\n", nvs_value);
} else {
printf("Failed to read value from NVS\n");
}
}
esp_sleep_enable_timer_wakeup(10 * 1000000LL);
printf("Going to deep sleep...\n");
esp_deep_sleep_start();
}
void ttn_nvs_save()
{
nvs_handle handle = 0;
esp_err_t res = nvs_open(NVS_FLASH_PARTITION, NVS_READWRITE, &handle);
if (res != ESP_OK)
goto done;
res = nvs_set_blob(handle, NVS_FLASH_KEY, &nvs_value, sizeof(nvs_value));
if (res != ESP_OK)
goto done;
res = nvs_commit(handle);
if (res != ESP_OK)
goto done;
done:
ESP_ERROR_CHECK(res);
nvs_close(handle);
}
bool ttn_nvs_restore()
{
nvs_handle handle = 0;
esp_err_t res = nvs_open(NVS_FLASH_PARTITION, NVS_READWRITE, &handle);
if (res != ESP_OK)
goto done;
size_t len = sizeof(nvs_value);
res = nvs_get_blob(handle, NVS_FLASH_KEY, &nvs_value, &len);
if (res != ESP_OK)
goto done;
done:
ESP_ERROR_CHECK(res);
nvs_close(handle);
return res == ESP_OK;
}
mdede439
I was able to get deep_sleep running on my ESP32S3 but when I observe its operation I see that it doesn't seem to restore any of the RTC memory and has to do another join when it wakes. I also see that counter_in_rtc_mem does not increment, it stays at 1. To me it looks like it never saves any of the required data to RTC Memory. I see this line in main.cpp if (ttn.resumeAfterDeepSleep()) { printf("Resumed from deep sleep.\n"); } else {........
This if statement is never true so it never prints Resumed from deep sleep and never restores anything from RTC. Where ttn.resumeAfterDeepSleep() code? I cannot seem to find it.