Doing OTA is fairly easy and it doesn't really matter where the data is coming from. I made a project using CAN bus that copies the firmware from one ESP32 to another, maybe it can be of use to you. I think I got the significant parts copied here, not sure as it is a while back. // get target partit...

Hi! I'm trying to use an external flash IC with my ESP32 to store some data that won't fit on the internal flash. I used the ext_flash_fatfs_example from ESP-IDF, and changed it to use SPI2 (SPI3 IO overlaps with LAN8720 connections): const spi_bus_config_t bus_config = { .mosi_io_num = 13, .miso_io...

Hi, I am designing a circuit containing a ESP32-WROOM-32E, a W5500 SPI ethernet module and a pin header for JTAG debugging. I noticed the pins for JTAG debugging are: tms, tck, tdo, tdi 13, 16, 23, 12 And the pins for VSPI are: mosi, miso, sclk, cs 23, 19, 18, 5 And the pins for HSPI are: mosi, miso...

After it went stale I asked this question on SO, and forgot to also post answer here after I found the solution: Even tho it looked like there was an issue in lwip, the issue was the RMII clock mode which I had set to internal via GPIO0. After setting it to external it works. The basic ethernet exam...

Thank you! That helped a lot, stupid of me that I never noticed the test_apps folders

For an assignment I will need to create a lot of custom components that I will use in different IDF projects, so I wanted to create a template for this. The thing is, I also want to be able to open these components as a project and be runnable with a main.c to test/develop functionalities. Via the d...

Rookie mistake my C is rusty to say the least. It works perfectly now, thanks a lot!

Thanks for the suggestions, now when I read the partition I can see the same data as in the .bin file so that looks good! :D Next I tried to write this data on the OTA partition of another ESP, unfortunately I'm having difficulties again: When I try to start a new OTA 'session' like this: const esp_...

I am working on a hobby project where I need to copy the running application from one ESP to another (but not with WIFI or ethernet). For guidance I looked at simple_ota_example from ESP-IDF and created a little test that should read the running binary per 8 bytes. However, I have no idea how I shou...

Thank you for your reply! I used a laptop, disabled wifi, set a static ip on the network interface, ran tftpd64 DHCP server on the interface and connected a second laptop. The second laptop is detected by the DHCP server and is given an ip address. When I connect the WT32_ETH01 the laptop running tf...