esptool.py read_flash 0 all filename.hex
esptool.py write_flash 0 filename.hex

For software migration testing purposes I am trying to build a test device running old firmware, the exact source of which I do not have. The old devices runs firmware built in 2019 and using SDK pre v3.1, v3.0.1 I think. I have successfully read the full 4MB flash from an existing working device us...

Sorry to bother @ESP_Sprite https://esp32.com/memberlist.php?mode=viewprofile&u=169

Any chance you can help with some of the questions above?

Sorry another question.

Q: Will overwriting the xAA x50 + 16x checksum bytes with all xFF effectively disable checksum tests?

HI @ESP_Sprite thanks for the response, I think my initial thoughts were wrong. The initial checking was done on a new bootloader+firmware combo to check out the logic first. In order to better understand the situation we now did 2 builds of the exact same firmware, the only difference being CONFIG_...

Very old thread but maybe ESP_Sprite { https://esp32.com/memberlist.php?mode=viewprofile&u=169 } is still listening... We have the same situation and needed the ability to change the partition table on the fly (as part of a firmware update) for adding coredump and SPIFFS partitions to very old firmw...

True, but I am trying to avoid the delay due to the extra build step, generating the output files as part of the main build step.

Is there any way to redirect JUST the output from "size" and/or "size-components" to a text file ?

We would like to use the text output to do easy comparisons between different optimisation outcomes.

I recently purchased 2x displays with adapters to use with the ESP32 DevKit V4 (WROVER-IE) and the Espressif LCDKit v1.1 Based on advice from EspressIf (TK043F1508 ) and from users (link below) I ordered what I thought was the correct module. https://github.com/espressif/esp-iot-solution/issues/89#i...

Can somebody please point me to specific 16bit parallel interface display modules that can be used with the ESP32-DevKitC-VC+ESP32-LCDKit combination. We prefer modules that are direct 1-for-1 pin compatible with 2x20 pin connector on the LCDKit. Resolution in range 320x240 to 800x480 would be ideal...