Thank you, I appreciate any feedback. I'm not sure I quite understand. Could you be more specific about what you mean, what race conditions you see and what I should change in the example code? Should we maybe move forward with just one of the ULPs? FSM always had lower currents than RISCV, so I thi...

Any news on this?

Sure, this is the code for RISCV. Main Processor: #include <stdio.h> #include <inttypes.h> #include "esp_sleep.h" #include "ulp_riscv.h" #include "ulp_adc.h" #include "ulp_main.h" #include "ulp/example_config.h" #include "freertos/FreeRTOS.h" #include "freertos/task.h" extern const uint8_t ulp_main_...

So I have updated to the current ESP-IDF 5.4 and started using Visual Studio Code. I have run the ULP ADC examples for both FSM and RISCV, also modifying each one with the previously discussed statements to disable the ADC from ULP. The result: In all cases the consumption is still around 50 µA (# 2...

Ok, so I looked into this more and came up with the following lines to disable the ADC from ULP. WRITE_RTC_REG(SENS_SAR_PERI_CLK_GATE_CONF_REG, SENS_SARADC_CLK_EN_S, 1, 0) WRITE_RTC_REG(SENS_SAR_PERI_CLK_GATE_CONF_REG, SENS_IOMUX_CLK_EN_S, 1, 0) WRITE_RTC_REG(SENS_SAR_POWER_XPD_SAR_REG, SENS_SARCLK_...

Sorry, I forgot to mention that I am using ULP-FSM not RISCV. Is the same possible there?

I am in too deep in this project now, I have to get it working. I would really like to try to turn the ADC on/off from ULP and thoroughly test it. Can someone tell me how I can implement that on the ULP?

Thank you very much. I don't have that much experience with ESPs yet, could you please explain a bit more what I need to do to implement your two approaches?

Thank you, that is a good test, should have thought of that myself. I removed everything that would cause changes after deep sleep and now all 4 batches are around 8 µA in deep sleep, as they should be. On one of the boards that had 50 µA before, I then re-activated step by step different parts that...

I have a serious problem with an ESP32-S3 based project, which needs to run a long time on a single battery. I have programmed everything using ESP-IDF 5.1.1 in Eclipse. The main program does some calculations, starts the ULP program and then we go to esp_deep_sleep_start(). The ULP periodically set...