CONFIG_SPIRAM_FETCH_INSTRUCTIONS=y

->

If enabled, instructions in flash will be moved into PSRAM on startup.

Copying all application code from flash to PSRAM is bound to take a while.

That makes sense.
Thanks for the clarification.

Referring to
https://docs.espressif.com/projects/esp-techpedia/en/latest/esp-friends/advanced-development/performance/reduce-boot-time.html

On our ESP-32-S3R8 board running @ 240 MHz CPU clock.
We can achieve a reduced boot time of around 40mS.

But as soon as we enable PSRAM in sdkconfig,
boot ...

Going through documentation for ESP32, in security topic, came across the sentence:

"For production use, flash encryption should be enabled in the "Release" mode only."

I would like to know what is meant by "Release" mode.
Is it meant as oppose to debug mode?
But ESP-IDF does not have separate ...

Thanks for the suggestions and verifying our code at your end (@ESP_rrtandler).

We finally nailed down the issue at our end.
We were using ESP-IDF version 5.0.1
After upgrading to version ESP-IDF 5.3.1 it works.
We get the NVS access correctly even with app > 14MB and PSRAM enabled

We will ...

In the project ESP32-S3R8 with 8MB of PSRAM and external 16MB of Flash is used.

We use custom partition table to have a small NVS partition and a large App partition (15Mb) and no OTA partition .

Project works when App size is less than 8MB and PSRAM is enabled. No error in accessing the NVS ...

Found the bin file on espressif github space

under
\esp-dev-kits\esp32-s3-lcd-ev-board\factory\bin

using this I can reflash the esp32-se-lcd-ev-board again back to factory dispatched condition

Hello,

We have got the ESP32-S3-LCD-EV-Board with 480 x 480 TFT sub board 2.
Where to get the factory installed demo programs for reflashing them.

Could not locate them on Espressif Github site.

Any pointer will be appreciated.

Best Regards,
Vinay

Hello,

On ESP32 module,
following code fails

esp_err_t status = adc_vref_to_gpio(ADC_UNIT_2, ADC2_CHANNEL_9);
if (status == ESP_OK) {
printf("v_ref routed to GPIO\n");
} else {
printf("failed to route v_ref\n");
}

But if we replace
adc_vref_to_gpio (ADC_UNIT_2, ADC2_CHANNEL_9) function ...