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ESP WROOM 32 with compiled bin files


I am trying to flash an ESP WROOM 32 board with the compiled binaries without any success using the ESP Download Tool and the example settings from the v0.9.4beta instructions.

I have tried 3 different boards and two of the latest versions, erasing the flash between each attempt. The boards load and run other applications ok.

On flashing and resetting a board I get the following repeated error on the serial output…

flash read err, 1000
ets_main.c 371
ets Jun 8 2016 00:22:57

flash read err, 1000
ets_main.c 371

Has anyone managed to load the compiled binaries on to a WROOM using the suggested files and addresses shown in the latest instructions?



Could you indicate the binary you are flashing?

Thanks for the reply.

I have tried the BLE binaries from versions 0.0.3 and 0.9.4.

The only file that wasn’t downloaded from the site was the bootloader bin which I got from the Expressif site (bootloader_dio_40m.bin)

And could you give me the name of the binary?
For example

The above should read version 0.9.3


Here are the settingsimage

The detected info from the target device is…

flash vendor:
C8h : GD
flash devID:
40 Mhz

Seems correct, do you have the possibility to flash it with Arduino IDE or Platformio?

I will try it tomorrow

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Using the same settings and the ESP Flash Tool I was able to flash a Heltec LoRa ESP32 but any attempt to flash a WROOM 32 still fails.

I was able to flash both the Heltec and the WROOM using PlatformIO.

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