This function would load the correct interval (delay) into the pre-configured timer. Each group has two general-purpose hardware timers. Besides, running a timer every few tens of microseconds leaves nearly no time for the system to do other things. Post by peterglen » Tue Oct 06, 2020 7:46 pm . Returns nothing. The second ISR would be connected to the Timer. Introduction ¶. Type ESP-IDF: New Project in the search bar and press enter. ESP IDF allows you to create the transaction & then reuse. This function would load the correct interval (delay) into the pre-configured timer. Internally, esp_timer uses a 64-bit hardware timer. There should be required header file esp_timer. Inkplate::delay();. 9 posts. Board WEMOS LOLIN32 LITE Device Description just on breadboard. On the ESP32, the bootrom is much bigger (7*64k) than on the ESP8266: ROM0 - 0x4000 0000 to 0x4006 ffff (448k = 7 * 64k) ROM1 - 0x3ff9 0000 to 0x3ff9 ffff (64k) The above map is correct and differs from what is published in the manuals. ESP-IDF TODO. This document describes using ESP-IDF with the ESP32 SoC. us: Number of microseconds to pause . Use this function if an RTC IO needs to be disconnected from internal circuits in deep sleep, to minimize leakage current. N. In light sleep mode, digital peripherals, most of the RAM, and CPUs are clock-gated, and supply voltage is reduced. When ı create a task using xTaskCreate() function and adding some delay in the task function. As you can see above PCF8574 has 4 input pins GND, VCC, SDA, SCL and 16. See the Backported Features for more information. Note that this is busy-waiting – it does not allow other tasks to run, it just burns CPU cycles. vTaskDelay () is supposed to allow a context switch. 2. ESP_Sprite, to me, "the company gang" is a term of respect. I did some measurements on the interrupt software delay and found 3. Step 2: Connect the PWM line. for (;;) { // read the input on analog pin 0: int sensorValue = analogRead (A0); // print out the value you read: Serial. So if you modify CCOUNT, this will likely affect FreeRTOS tick interval. I looked at the timers example and the timer does make it work and ESP32 can say something. Neopixels have great possibilties. event_base – [in] the event base that identifies the event. This will take about 30 microseconds to execute:. Using Arduino Programming Questions. void esp_rom_delay_us (uint32_t us) ¶ Pauses execution for us microseconds. But there is problem with only microseconds return value by esp_timer. Also only the RTC GPIO pins (GPIO0 - GPIO5) can be used for deep sleep external wakeup. So in that module, we need exact delay of 10 and 40 microseconds of delay interval in some interval to update firmware into that module using one wire communication over GPIO pins. the time param is of type "timeval", which is a struct that has two members that you set: "tv_sec" and "tv_usec". この部分もESP-IDF側のAPIに切り替えるため、vTaskDelay ()関数を使ったのだが. kolban Posts: 1683 Joined: Mon Nov 16, 2015 4:43 pm. Even when logs are disabled by using a tag name they will still require a processing time of around 10. It looks to be an unnecessary delay since the previous function, rmt_wait_tx_done, takes. With a normal LEDs you can show the state of a system (blue= too cold, red= too hot). Delay a task for a given number of ticks. Actually, we have connected one module over UART with ESP32 chip in our product. delayMicroseconds () is a cycle-counting loop, so it doesn't include any time taken by background functions like interrupts. doing some math to convert it to microseconds. 0 and later versions, please refer to examples in the esp-protocols repo. This depends on the setting of divider, that will be used as divisor of the incoming 80 MHz APB_CLK clock. Internally, esp_timer uses a 32-bit hardware timer (FRC1, “legacy” timer). July 6, 2022. Setting "Extra delay in deep sleep wake stub (in us)" option under "ESP32 specific" menu in menuconfig to some value like 500 (microseconds) did not work out. In this ESP32 PWM tutorial with ESP-IDF, we will learn how to generate PWM or pulse width modulation module with ESP32 using ESP-IDF. Use this function if an RTC IO needs to be disconnected from internal circuits in deep sleep, to minimize leakage current. void Delay_us(uint32_t. Colleagues, hello! As a beginner, I ask for your support. The esp_intr_alloc () abstraction exists to hide all these. FreeRTOS (ESP-IDF) FreeRTOS (Supplemental Features) Heap Memory Allocation. Identifying the GPIO used as a wake up source. event_base – [in] the event base that identifies the event. Till Now, we have used ets_delay_us FreeRTOS API to get microseconds delay but that is not recommend to use. Since I am taking differences the constant term is not important, and the 130 ns is acceptable. Joined: Wed Jul 28, 2021 12:25 pm Location: Italy [SOLVED] My function for microseconds delay doesn't work properly. get_idf idf. 1ESP32TimerInterrupt. For example, 1us = 1 / 1000000 of a second = 1MHZ clock rate. Board index English Forum Discussion Forum ESP-IDF [SOLVED] My function for microseconds delay doesn't work properly. Oh, now that IS useful! - now I wish I hadn't just spent the last hour implementing the exact same thingThis callback function is called from the esp_timer task each time the timer elapses. Hello community, I made a. 9 posts. Delay a task for a given number of ticks. Post by Reiner1210 » Mon Dec 03. I encountered the following problem when using it: if I use a value such as delay_us(20), it doesn't work! Driving a pin (from high to low and vice. This function will return timer structure if configuration is successful. Please note that ESP AP and ESP-NOW share the same encryption hardware keys, so the max_connection parameter will be affected by the :ref:`CONFIG_ESP_WIFI_ESPNOW_MAX_ENCRYPT_NUM`. 9 posts. This will take about 30 microseconds to execute:. Till Now, we have used ets_delay_us FreeRTOS API to get microseconds delay but that is not recommend to use. 0, register access macros which write or read-modify-write the register can no longer be used as expressions, and can only be used as statements. ESP_OK on success. Code: Select all. Click ‘Choose Template’ button to proceed forward. I also used portTICK_RATE_MS but the speed didnt change . I am trying the run stepper motor with the tmc2208 driver and ı want to delay in microseconds like 5uS or 10 uS. Version v2. I am trying the run stepper motor with the tmc2208 driver and ı want to delay in microseconds like 5uS or 10 uS. Parameters. esp_timer set of APIs provides one-shot and. There are the following two time sources: RTC timer: Allows keeping the system time during any resets and sleep modes, only the power-up reset leads to resetting the. Very simple, but functional solution for ESP8266 with IDF/RTOS and neopixel strip. Code: [Select all] [Expand/Collapse] void delay_us (uint64_t number_of_us){. ESP-IDF equivalent to Arduino delay () You can use the FreeRTOS API to provide a delay similar to the Arduino delay () function in the ESP-IDF framework. e. rokmarko mentioned this issue on Nov 8, 2021. . Previously, all register access macros could be used as expressions, so the following was allowed: uint32_t val = REG_SET_BITS(reg, mask); In IDF v5. However, I just found. Added documentation regarding delay() resolution in esp-idf component #3014. ST7789とのSPI通信プログラムを実装していて、初期化関数の中でコマンド送信後delay ()でちょっとだけ時間調整をしている部分があった。. Posts an event to the system default event loop. How can I add delay in microseconds? Also it seems that core 1 task is executed rarely. I am trying the run stepper motor with the tmc2208 driver and ı want to delay in microseconds like 5uS or 10 uS. It’s also one of the worst things. int64 = 292,471 years before overflow at uS resolution! Unlike gettimeofday function, values returned by esp_timer_get_time() start from zero after startup of the chip wakes up from deep sleep and do not have. 13 posts 1; 2; Next; Ritesh Posts: 1325 Joined: Tue Sep 06, 2016 9:37 am. bvernoux changed the title vTaskDelay / portTICK_RATE_MS wrong delay vTaskDelay / portTICK_RATE_MS wrong delay (not an issue) on Oct 19, 2016. const unsigned char sample [] = { // here a lot of numbers - audio data }; hw_timer_t * timer = NULL ; portMUX_TYPE timerMux = portMUX_INITIALIZER. FreeRTOS is an open source RTOS (real-time operating system) kernel that is integrated into ESP-IDF as a component. I check the time using esp_timer_get_time() at the beggining of my task and again at the end of my task. time (&now); return the timestamp in seconds and I'd like to get it in milliseconds, I haven't found a function to do that, there is currently any way to achive that? Last edited by guillermop on Sat Apr 07, 2018 5:18 am, edited 1 time in total. Hi, it's me again with more stupid questions. The calculation of the duration take place later. Board index English Forum Discussion Forum ESP-IDF [SOLVED] My function for microseconds delay doesn't work properly. IDF documentation suggests microsecond delay - should be millisec Postby jhinkle » Sat Dec 08, 2018 5:00 pm In section "API Guide - Wi-Fi Driver" -- in sub-section. I don't want to use the vTaskDelay () since it effects also other part of. int count_delay = 0; while (1). Post by peterglen » Tue Oct 06, 2020 7:46 pm . 3)? ¶ In ESP-IDF v3. One of the GPIO pin will be initialized and configured as. To delete the timer when it is no longer needed, call esp_timer_delete (). As you pointed out delay works fine in Arduino IDE, if you consider Arduino as component to be unsupported then please close this issue!. Ideally, 500ns or less. To switch to a different SoC target, choose target from the dropdown in the upper left. source ·. I am trying the run stepper motor with the tmc2208 driver and ı want to delay in microseconds like 5uS or 10 uS. Till Now, we have used ets_delay_us FreeRTOS API to get microseconds delay but that is not recommend to use. It allows to set this: 1, 2 or 3 level (by default 1). 1) Bug with IDF functions that internally call vTaskSuspendAll () The assert in vTaskDelay () checks to see if the uxSchedulerSuspended of the current core is set. ESP-IDF FreeRTOS is based on the Xtensa port of FreeRTOS v10. 0, the functionality of esp_flash_* APIs is not limited to. When ı create a task using xTaskCreate() function and adding some delay in the task function. They are all 64-bit (54-bit for ESP32-C3) generic timers based on 16-bit pre-scalers and 64-bit (54-bit for ESP32-C3) up / down counters which are capable of being auto-reloaded. Esp32 packet monitor. Pauses the program for the amount of time (in microseconds) specified by the parameter. Hello community, I made a. h library is based on hardware timers that can provide microsecond accuracy [1], which can easily be seen in the signature of the function that is used to setup a periodic callback. Internally, esp_timer uses a 64-bit hardware timer, where the implementation depends on the target. Code: Select all. So in that module, we need exact delay of 10 and 40 microseconds of delay interval in some interval to update firmware into that module using one wire communication over GPIO pins. When ı create a task using xTaskCreate() function and adding some delay in the task function. I chose the ESP32 because of its 240MHz clock, but it still seems to be having trouble. But for some reason Timer0 is being disabled, and can't use the delay(), millis() and delayMicroseconds(). 42 +/- 0. After successful setup the timer will automatically start. Resolution timer_u32 uses 80 MHz clock (in most. I also used portTICK_RATE_MS but the speed didnt change . Joined: Wed Jul 28, 2021 12:25 pm Location: Italy [SOLVED] My function for microseconds delay doesn't work properly. The examples were written for processors where millis() returns an unsigned long and rolls over after 49 and a bit days,. 0, For more information about FreeRTOS features specific to ESP-IDF,. The parameter in vTaskDelayUntil is the absolute time in ticks at which you want to be woken calculated as an increment from the time you were last woken. Joined: Wed Aug 29, 2018 3:17 pm. It has 8 channels which can generate independent waveforms that can be used, for example, to drive RGB LED devices. The variable at 0x3ffe01e0 (in ram) apparently holds the number of processor ticks per microsecond, i. Postby yesgenius » Mon Jan 03, 2022 2:38 pm. I read somewhere about 100 ticks per second but the whole esp-idf document is over 1600 pages long. Parameters. We will start by copying the timer_group example in ESP-IDF and save it to another location, for example ~/esp32projects/timer. In this ESP-IDF tutorial, we will learn to use ESP32 GPIO Interrupts using ESP-IDF. Hey all, I want to explore the sleep modes on ESP32 using Arduino IDE. For ESP-IDF v5. Now, generally, the analogRead() execution time on ESP32 is in the ballpark of 10 microseconds. ticks_ms (), start ) # compute time differenceThis is vTaskDelay ( pdMS_TO_TICKS ( 10 ) ) a delay of 10mSec, this vTaskDelay ( 10 ) is a delay of 10 clock ticks. To start the timer in one-shot mode, call esp_timer_start_once (), passing. When the GPIO mux is used, 2 APB clocks of input delay are added to the MISO, increase 2. Timer callbacks are dispatched from a high-priority esp_timer task. Delay in esp_idf_hal::delay - Rust esp_idf_hal 0. vTaskDelayUntil is absolute in terms of the ticks set by scheduler and FreeRTOS Kernel. void esp_rom_delay_us (uint32_t us) Pauses execution for us microseconds. ESP32 ESP-IDF BME280 Web Server Overview. ESP-IDF is the official development framework for the ESP32, ESP32-S, ESP32-C, ESP32-H and ESP32-P Series SoCs. ESP-IDF FreeRTOS is based on the Xtensa port of FreeRTOS v8. 1. I dont get any delay even if I add some different delays. Board index English Forum Discussion Forum ESP-IDF [SOLVED] My function for microseconds delay doesn't work properly. I promise this one is definitely about dual core issues and not my crappy array management. When ı create a task using xTaskCreate() function and adding some delay in the task function. If you have not installed esp-idf on your Windows or Linux machine. sleep_us(us): This is yet another blocking method that provides a delay in microseconds. This is the documentation for Espressif IoT Development Framework ( esp-idf ). 0, however some functions of FreeRTOS v9. source. 3. Note that this is busy-waiting, so. Currently, ESP32 Wi-Fi supports the Modem-sleep mode which refers to the legacy power-saving mode in the IEEE 802. Using esp_timer_get_time () generates “wall clock” timestamps with microsecond precision, but has moderate overhead each time the timing functions are called. In the Extension, select ESP-IDF option: We will click the ‘ esp_timer ’ under the System tab. "ESP-IDF as Component" would imply that ESP-IDF is some sort of library for Arduino, which is (IMO) misleading, because it's true the other way around. 0. Whenever i compile the code for the esp32, the compiler generated the following error:ESP32-S3 GPIO interrupt latency is too high. esp_timer set of APIs provides one-shot and periodic timers, microsecond time resolution, and 52-bit range. Each group has two general-purpose hardware timers. Here's a neat hack to demonstrate how changing of clock frequency affects serial. This will include examples of logging, generating delays, keyboard input and blinking the onboard LED of ESP32. On a congested wireless channel (meaning lots of other devices broadcasting) you'd routinely see 100+ ms latencies as your devices have to wait for a free radio slot. 0, the functionality is not limited to the “main” SPI. 9 microseconds per entry. Board index English Forum Discussion Forum ESP-IDF; IDF documentation suggests microsecond delay - should be millisec. The delay function seems to be based on system ticks so that the delay time can be used for other tasks. Overview. us: Number of microseconds to pause . Note that this is busy-waiting, so unlike vTaskDelay it does not allow other tasks to run (it just burns CPU cycles. You guys have made an extremely impressive platform, to say the least. By including esp_wifi. # include <btAudio. h file allows an application to use a read only timer for timing measurements done at and below 1 microsecond level. Read part 1. The main idea is to start a timer for a given amount of time (say 5 seconds) whenever an external button is pushed. // This code is for testing analogRead delay // Compiled using Arduino IDE // ESP32-WROOM-DA Module // Board is ESP WROOM 32 made by // Does nothing more than fire a periodic timer // interrupt every 200 microseconds and an analogRead // inside the ISR: PinTEST is high before read, // then is low. However, this crashes my ESP32 every time. The entire ROM is seen as a continuous 448k starting at 0x40000000. Hello community, I made a. Let us now assume that 1/C is faster than the delay you want to wait. Code that executes faster can also have other positive effects, e. While millis() is an absolute time clock. 58acac8. time. When ı create a task using xTaskCreate() function and adding some delay in the task function. The application requires the precision of tens of microseconds. Need API support to provide micro seconds delay. 42. That is also how esp-idf's own usleep() works. This function should be called after esp_bluedroid_init ()/esp_bluedroid_init_with_cfg () and esp_bluedroid_enable () success, and should be called after esp_bt_hid_device_init (). It is same as millis() from view of usage. The ESP32 will communicate with the PCF8574, which uses I2C communication, and this in turn will control the LCD. time. Hello community, I made a. void esp_rom_install_channel_putc (int channel, void (* putc) (char c)) esp_rom_printf can print message to different channels simultaneously. So I measured delay between input signal (on the pin 4) and ISR processing point (pin 18) by an oscilloscope and I see the delay between an input event and output event is 4 microseconds!!!! It's unbelivieble too long!!!Get time in uS since powerup int64_t esp_timer_get_time() esp_timer_get_time() returns 64-bit time since startup, in microseconds. It’s also one of the worst things. At 240 Mhz, with a 32 bit ccount register, we will see overflow every 17. Board index English Forum Discussion Forum ESP-IDF; Need API support to provide micro seconds delay. ⚡ESP32 Code Example For The Servo Motor Project. ’. This depends on the setting of divider, that will be used as divisor of the incoming 80 MHz APB_CLK clock. 13 us. When ı create a task using xTaskCreate() function and adding some delay in the task function. Code: Select. ESP-IDF FreeRTOS is based on the Xtensa port of FreeRTOS v8. The delayMicroseconds function, on the other hand, does not yield to other tasks, so using it for delays more than 20 milliseconds is not recommended. When using a bootloader from these early ESP-IDF versions and building a new app, enable the config option CONFIG_APP_COMPATIBLE_PRE_V2_1_BOOTLOADERS. Note that this is busy-waiting – it does not allow other tasks to run, it just burns CPU cycles. Mind you calculated Serial baud rates differ for each clock speed set. PWM won't do the effect as the low state following the high logical state is very very long compared to 40 microseconds of high state. Hello community, I made a. I. Each RTC pad has a “force hold” input signal from the RTC controller. Specify the project name and directory. Till Now, we have used ets_delay_us FreeRTOS API to get microseconds delay but that is not recommend to use. Answers checklist. ESP-IDF ESP-BOX ESP-ADF ESP-MDF ESP-WHO ESP-SkaiNet ESP32 Arduino IDEs for ESP-IDF ESP-AT ESP IoT Solution ESP. I've spotted the delay ets_delay_us(50) in the led_strip_flush function introduced in 4642ea3. The API is slightly different than that for the ESP32. So I should I have sufficient time for the loopDelay to work, but it's not. Memory Management for MMU Supported Memory. This guide also includes a comparison of vTaskDelay () function provided by FreeRTOS with. The timer speed can be determined by the following formula-. Board index English Forum Discussion Forum ESP-IDF [SOLVED] My function for microseconds delay doesn't work properly. Delay a task until a specified time. June 30, 2022. 5 posts • Page 1 of 1. hw_timer_t * timerBegin(uint32_t frequency); frequency select timer frequency in Hz. 0 have been backported. This library enables you to use Interrupt from Hardware Timers on ESP32-based (including ESP32_S2, ESP32_S3 and ESP32_C3) boards. IDEs for ESP-IDF ESP-AT ESP IoT Solution ESP RainMaker Rust ESP8266 Report Bugs Showcase; Chinese Forum 中文社区. Forget DMA and (obviously) setup processing/interrupts on core 1. 4. ESP32 supports two major power saving modes: Light-sleep and Deep-sleep. So, I note that the vTaskDelay in the arduino does a delay of 15ms because of the Watchdog timer, this is the piece of code that says it. If the Modem-sleep mode is enabled, station will switch between active and sleep state periodically. Raising the level, the interrupt handler can reduce the timer processing delay. void esp_rom_delay_us (uint32_t us) Pauses execution for us microseconds. change "microseconds" to "milliseconds" because vTaskDelay is based on FreeRTOS time tic which is in multiple milliseconds. 00001 seconds, which will hardly affect your calculations. Now run the following commands to make sure we can compile and flash the code before continuing. しかし最近色々調べてみると、実はESP32にもμs単位でのdelayを行う関数が存在していることを発見したので記録しておこうと思った. Github repository with HTTPS connectivity sensor node under ESP-IDF framework:. Board index English Forum Discussion Forum ESP-IDF; Need API support to provide micro seconds delay. Upon exit from light sleep, peripherals and CPUs resume operation, their internal state is preserved. Release v5. h library that controls SPI peripherals of ESP32 when they act as a masters. ESP32 supports two major power saving modes: Light-sleep and Deep-sleep. ESP-IDF provides driver/spi_master. ESP_ERR_INVALID_STATE if the timer is not running . guillermop Posts: 12 Joined: Thu Jul 06, 2017 2:52 am [SOLVED] get timestamp in milliseconds. We would like to show you a description here but the site won’t allow us. Each interrupt has a fixed priority, most (but not all) interrupts are connected to the interrupt matrix. Use one of the following methods instead:. Espressif ESP32 High Resolution Timer. I am trying the run stepper motor with the tmc2208 driver and ı want to delay in microseconds like 5uS or 10 uS. Board index English Forum Discussion Forum ESP-IDF; Need API support to provide micro seconds delay. The master needs a setup time of 2 APB clocks before the sample edge on the MISO line. #include <rom/ets_sys. h" esp_task_wdt_reset(); But, this method will not work if there are any other threads that have been registered with esp_task_wdt_add(), because it checks to make sure all threads have called esp_task_wdt_reset() recently, and only feeds the dog if so. So I should I have sufficient time for the loopDelay to work, but it's not. For this, we’ll use the timer’s. Add support files required to implement an ESP-IDF library/component. Here is the github repo: Sketch file. This function should be provided with a structure timer_config_t to define how timer should operate. The only functions that change uxSchedulerSuspended are vTaskSuspendAll () and xTaskResumeAll (). If I take 64 readings with a 1ms interval for stability that's 64 milliseconds. 5. August 15, 2022. 13 posts 1; 2; Next; Ritesh Posts: 1323 Joined: Tue Sep 06, 2016 9:37 am. While I would love the function to return quickly, having a more constant return time would probably be just as beneficial. Multiply 0. , Xtensa and RISC-V) available of ESP chips. Post by filo_gr » Thu Sep 09, 2021 6:57 am . Board index English Forum Discussion Forum ESP-IDF; Need API support to provide micro seconds delay. Configure Deep Sleep. ticks_ms () # get millisecond counter delta = time . The voltage level on the pin will depend on the circuit it is connected to, until you configure it as an output. The event loop library keeps a copy of event_data and manages the copy’s lifetime automatically (allocation + deletion); this ensures that the data the handler receives is always valid. August 15, 2022. That is how other arduino boards work and a lot of code and libraries expect delay to work as per the documentation. ’. I had an issue with the chip delivering bad calibration data. WiFive Posts: 3529 Joined: Tue Dec 01, 2015 7:35 am. This is the better option when executing multiple tasks, which is usually the case in FreeRTOS. get current time in millis() Post by Saskia » Fri Jul 21, 2017 9:58 am . The external interrupt ISR routine will provide a signal to FreeRTOS task functions to control the onboard LED. What I don't understand is how to wait 20 microseconds directly before the first stop condition. h. Parameters. It's written as "Arduino as an ESP-IDF component" on the webpage it points to as well. I especially appreciate your explanation of esp_delay_us(), as the underlying code is impossible to get at short of reverse engineering the ROM, which is pretty much. Post by filo_gr » Thu Sep 09, 2021 6:57 am . ESP32 PWM duty cycle measurement from input. For example, 1us = 1 / 1000000 of a second = 1MHZ clock rate. 0. Board index English Forum Discussion Forum ESP-IDF; Need API support to provide micro seconds delay. delay() Specifies program pauses a number of milliseconds. The source files attached to this release will not work due to our use of git submodules. I also used portTICK_RATE_MS but the speed didnt change . Joined: Wed Jul 28, 2021 12:25 pm Location: Italy [SOLVED] My function for microseconds delay doesn't work properly. The LED control (LEDC) peripheral is primarily designed to control the intensity of LEDs, although it can also be used to generate PWM signals for other purposes. Internally, esp_timer uses a 32-bit hardware timer (FRC1, “legacy” timer). This example builds for an Adafruit Metro ESP32-S2 board, which is based on the WROVER module, but with only slight changes it should be usable on an Espressif or other dev board. Code that executes faster can also have other positive effects, e. So, Normal communication with that module using ESP32 is UART but to upgrade. The two output signals are typically used to command the motor to. Each group has two general-purpose hardware timers. Posted by rtel on December 24, 2014. Hello, I am trying to provide delay between the RGB colors of an led. 13 posts 1; 2; Next; Ritesh Posts: 1330 Joined: Tue Sep 06, 2016 9:37 am. For example delayMicroseconds(2) takes 330 cycles, corresponding to a delay of more than 4µs, or double what was requested, when running at 80MHz to save power. 6, 20, 16, 13. delayMicroseconds() calls it at least twice. void esp_rom_install_channel_putc (int channel, void (*putc) (char c)) ¶ esp_rom_printf can print message to different channels simultaneously. When ı create a task using xTaskCreate() function and adding some delay in the task function. esp-idf-monitor also has a range of features to decode crash output and interact with the device. g. ESP32 contains the following power saving modes: Light-sleep, and Deep-sleep. 1. Parameters. Optimizing execution speed is a key element of software performance. Board index English Forum Discussion Forum ESP-IDF [SOLVED] My function for microseconds delay doesn't work properly. Therefore if you set a tick period of 2ms (500hz) and request a delay of 1 tick you will get a delay of between just over 0 ms (if the request to delay. ESP32 is capable of light sleep and deep sleep power saving modes. I agree that it will work for microseconds.