Moderator's note: The same question has been asked and answered in English, here:
https://esp32.com/viewtopic.php?f=2&t=15762&p=60222

Hi, It's not possible to configure ESP32-PICO-D4 to boot from the external flash, this SPI configuration is programmed into the chip's OTP efuse bits. It's also not possible for both the SPI flash chips to be mapped into the address space at the same time, unfortunately. It's technically possible in...

Hi vlucio, You can use the GPIO Matrix to remap the SPI bus to any free GPIO pins. (This is possible for almost every peripheral in the ESP32, the JTAG & SD peripherals are the notable exceptions.) The SPI driver in the software environment you're using should give a way to set the pins on initializ...

Hi Fasani, You need to add the line "REQUIRES Adafruit-GFX" or "PRIV_REQUIRES Adafruit-GFX" here: https://github.com/martinberlin/cale-idf/blob/tft_adafruit/components/CalEPD/CMakeLists.txt#L13 Can find a full explanation here: https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/b...

Hi _0boot_, You're right that this error is to do with the power-on time of attached flash. Apart from adding additional UART output and a short delay to the power-on start time, there is no other negative effect from this error. I can't say for certain why you only see this pattern when pressing th...

Hi vsubbhiah and silikone, esptool is supported on MacOS Catalina. However, there are apparently issues with some USB to serial chip drivers on Catalina (the "Resource busy" error in this case is being returned to esptool by the OS when it tries to open the serial port.) In the case of ESP-WROVER-KI...

Hi jsam,

Correct, compression is just for the transfer over UART. In this case, 1495920 bytes have been written to flash.

Angus

Hi Peter, I've added an ID to the topic as we're tracking this internally. I have a few questions to help us debug: - Is the ESP32 acting as the I2C master or the slave in these examples? I wasn't certain from the description so far. - Can you please give an example of the on-the-wire I2C protocol, ...

Hi adesandr, Thanks for being patient while someone got back to you. I think the problem is here: # Additional directorie to search for components set(EXTRA_COMPONENT_DIRS "${PROJECT_DIR}/../extra_components") The PROJECT_DIR is not set as a variable in this file, it's only set as a build property (...

I am designing a project with esp32 DOWD bare chip, followed custom design. I have to interface external memory chip via SPI protocol. Do I understand correctly that this is the primary flash chip for the ESP32 (ie connected to the main SPI flash pins, not a secondary SPI bus)? Will answer assuming...