Found issue. There was a typo in GPIO config that was initializing GPIO_33 inadvertently. All is working now!!!! For those looking for solution to similar issue. CHECK ALL THE GPIO for the PSRAM!!!

Thank you for cleaning up my long config post with the codebox. Apologies for not doing that. I just tried both 40 and 80 speeds for flash and PSRAM with no change. I have tried on a second board as well with the same results. I am wondering if I have some configuration wrong? The boot shows: I (278...

This is on an ESP32-S3 N8R8 Dev Kit (YD-ESP32-23 2022-V1.3) with ESP32-S3-WROOM-1.

It appears on further testing that the panics are happening upon led_strip_refresh as well as ESP_LOGx calls after the PSRAM buffer is read or written. Seems like any serial communications after PSRAM access causes the issue? (BTW, tried both SPI2_HOST and SPI3_HOST for the SPI display with the same...

And the second part as well as the sdkconfig.defaults at the end: # Partition API Configuration # # end of Partition API Configuration # # PHY # CONFIG_ESP_PHY_ENABLED=y CONFIG_ESP_PHY_CALIBRATION_AND_DATA_STORAGE=y # CONFIG_ESP_PHY_INIT_DATA_IN_PARTITION is not set CONFIG_ESP_PHY_MAX_WIFI_TX_POWER=...

The sdkconfig configuration is as follows (first half since the BB won't let me attach it as a file and won't let me put whole thing): # # Automatically generated file. DO NOT EDIT. # Espressif IoT Development Framework (ESP-IDF) 5.4.0 Project Configuration # CONFIG_SOC_MPU_MIN_REGION_SIZE=0x2000000...

This is on an ESP32-S3 N8R8 Dev Kit. The following pins are connected to a SPI display #define PIN_BUSY (GPIO_NUM_14) #define PIN_RESET (GPIO_NUM_13) #define PIN_DATA_CMD (GPIO_NUM_12) #define PIN_CHIP_SELECT (GPIO_NUM_11) // Defining pins for ESP32 which uses MISO, MOSI, CS, SCLK, but We will only ...

WIth PSRAM enabled, but not accessed, all works as expected. Once a successfully allocated area of memory " imageBufferPSRAM = (uint8_t *)heap_caps_malloc(TOTAL_BYTES, MALLOC_CAP_SPIRAM);" is read from, the system panics within the uart_vfs.c file (sometimes different places, but most often uart_ret...