I understand esp_ota_end() will verify the signature of the image in the partition in update. However, is there a function I can call to verify an image file before writing it to partition? My use case is: the image file is first uploaded and saved in an sdcard file system. Then I want to validate t...

On a custom board with ESP32-D0WDQ6-V3 + RTL8201, PHY ref clock 50M is fed from ESP32 GPIO0. I can run ethernet_iper without issue. But when I tried eth2ap, I always get Ethernet link up and down repeatedly. In particular, when I tried to connect a WiFi client to the AP, Ethernet link drops immediat...

Thanks guys for the replies. I have successfully connected external flash to the same SPI bus as PSRAM and uses a different CS (SD_CMD). That works fine. So the datasheet's wording "pins listed here are not recommended for other usage" seems misleading. emmc is another story and needs to be connecte...

Hi, AFAIK, ESP32-D0WDR2-V3 has a 2MB embedded PSRAM but only 448KB internal flash. Is it possible to connect an external flash (for code and data) and an eMMC (storage only) and make all of three (PSRAM+external flash+eMMC) work together? When I read page 18 of ESP32 datasheet, above Table 2, it sta...