Search found 424 matches

by krzychb
Wed Jun 10, 2026 1:50 am
Forum: General Discussion
Topic: ESP32 S3 and ESP32 P4 flying at Swarm Drone Challange 2026
Replies: 1
Views: 42

Re: ESP32 S3 and ESP32 P4 flying at Swarm Drone Challange 2026

Cool stuff. Good luck on the finals!
by krzychb
Mon Mar 16, 2026 11:07 am
Forum: Hardware
Topic: ESP32-C6: possible to route 40Mhz XTAL to gpio pin?
Replies: 1
Views: 142

Re: ESP32-C6: possible to route 40Mhz XTAL to gpio pin?

Hi greengnu,

There is an API esp_clock_output_start() to route clock sources, including the 40 MHz root clock, to a GPIO:


#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_check.h"
#include "esp_clock_output.h"
#include "esp_log.h"

#define XTAL ...
by krzychb
Wed Feb 04, 2026 11:03 am
Forum: Hardware
Topic: Esp32S3 : Problem during the flash of a proprietary board using an Esp32S3
Replies: 1
Views: 264

Re: Esp32S3 : Problem during the flash of a proprietary board using an Esp32S3

Hi ThomasESP32,

When the ESP32-S3 cannot boot normally (empty flash, invalid firmware, flash power-up issues, etc.), an internal timer keeps resetting the chip every few seconds. Each reset re‑initializes the USB-Serial-JTAG peripheral, so Windows repeatedly sees the USB device connect and ...
by krzychb
Sun Nov 02, 2025 12:43 pm
Forum: Documentation
Topic: is there any EMC document for ESP32 product?
Replies: 2
Views: 10977

Re: is there any EMC document for ESP32 product?

Hi feixiao123,

To view the certificates, please visit https://www.espressif.com/en/support/documents/certificates and select a specific chip or module. For example, the European EMC conformity standards for the ESP32-C6-MINI-1U module are listed at https://documentation.espressif.com/ESP32-C6-MINI ...
by krzychb
Thu Oct 02, 2025 12:56 am
Forum: General Discussion
Topic: flash download tool
Replies: 3
Views: 1396

Re: flash download tool

The download package does not include any bin files besides the '"flash_download_tool_3.9.9_R2.exe" itself. All the folders (including "bin" folder) are empty by default.

flash-download-tool-folders.png


Can you connect to the chip from the "chipInfoDump" tab and see some information like below ...
by krzychb
Fri Aug 22, 2025 9:33 am
Forum: ESP-IDF
Topic: Want to work on a project build on ESP-IDF 4.3.x
Replies: 1
Views: 103

Re: Want to work on a project build on ESP-IDF 4.3.x

Hi sonukmrsah,
To access documentation for older versions, check https://docs.espressif.com/projects/esp ... sions.html
by krzychb
Tue Aug 12, 2025 3:32 pm
Forum: Documentation
Topic: Deep Thinking Mode for Complex Documentation Queries
Replies: 0
Views: 7902

Deep Thinking Mode for Complex Documentation Queries

For questions requiring in-depth analysis, you can now enable Deep Thinking Mode . When activated, the chatbot performs multiple rounds of retrieval and source evaluation, using varied search parameters to identify the most relevant content across your knowledge base.

Key improvements with this ...
by krzychb
Tue Aug 12, 2025 12:00 pm
Forum: General Discussion
Topic: Access RTC Fast RAM from ESP32-S3 RISC-V ULP
Replies: 3
Views: 178

Re: Access RTC Fast RAM from ESP32-S3 RISC-V ULP

This is a hardware limitation, not just a convention.
The ULP's accessible memory for code and data is strictly the 8 KB of RTC SLOW memory.

rtc-memory-access-esp32-s3.PNG
rtc-memory-access-esp32-s3.PNG (186.3 KiB) Viewed 133 times

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