Invalid Header

[deus-est-machina]

Hi :)

Thanks for the great work and the proper README instructions.

Unfortunately, I am receiving something weird back after I reset the module:

rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
invalid header: 0x0a0a0a0a
invalid header: 0x0a0a0a0a
invalid header: 0x0a0a0a0a
invalid header: 0x0a0a0a0a
invalid header: 0x0a0a0a0a
invalid header: 0x0a0a0a0a
invalid header: 0x0a0a0a0a
invalid header: 0x0a0a0a0a
ets Jul 29 2019 12:21:46

Any Ideas?

[shariltumin]

It seem that the flash got corrupted somehow. Have you try the reflash the firmware? Try 1) completely erase the flash, 2) reflah the firmware. If you are using Thonny, please make sure that "Erase flash before installing" is checked.

[deus-est-machina]

I am using Thonny, yes. I have the Erase flash checked.

...\Local\Programs\Thonny\python.exe -u -m esptool --port COM6 erase_flash
esptool.py v4.4
Serial port COM6
Connecting...........
Detecting chip type... Unsupported detection protocol, switching and trying again...
Connecting....
Detecting chip type... ESP32
Chip is ESP32-D0WD-V3 (revision v3.0)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
WARNING: Detected crystal freq 42.28MHz is quite different to normalized freq 40MHz. Unsupported crystal in use?
Crystal is 40MHz
MAC: 44:17:93:7b:fd:dc
Uploading stub...
Running stub...
Stub running...
Erasing flash (this may take a while)...
Chip erase completed successfully in 11.5s
Hard resetting via RTS pin...
Erasing done
------------------------------------

...\Local\Programs\Thonny\python.exe -u -m esptool --port COM6 write_flash --flash_mode keep --flash_size detect 0x1000 "C:/Users/ruben/_work/projects/esp32/MicroPython v1.19.1-705-gac5934c96-kaki5-2022-12-03ESP32CAMERAwSSL.bin"
esptool.py v4.4
Serial port COM6
Connecting...
Detecting chip type... Unsupported detection protocol, switching and trying again...
Connecting....
Detecting chip type... ESP32
Chip is ESP32-D0WD-V3 (revision v3.0)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
WARNING: Detected crystal freq 42.28MHz is quite different to normalized freq 40MHz. Unsupported crystal in use?
Crystal is 40MHz
MAC: 44:17:93:7b:fd:dc
Stub is already running. No upload is necessary.
Configuring flash size...
Auto-detected Flash size: 4MB
Flash will be erased from 0x00001000 to 0x00033fff...
Warning: Image file at 0x1000 doesn't look like an image file, so not changing any flash settings.
Compressed 208112 bytes to 36251...
Writing at 0x00001000... (33 %)
Writing at 0x00017750... (66 %)
Writing at 0x0002fa4b... (100 %)
Wrote 208112 bytes (36251 compressed) at 0x00001000 in 3.9 seconds (effective 427.0 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...
Done!

[shariltumin]

Hi, Thanks for the info. I am not sure if you were flashing the correct firmware. The firmware size is 1270928

flash log on my part gave these numbers: ... Configuring flash size... Flash will be erased from 0x00001000 to 0x00137fff... Compressed 1270928 bytes to 821711... Wrote 1270928 bytes (821711 compressed) at 0x00001000 in 19.4 seconds (effective 525.2 kbit/s)... Hash of data verified.

But your log shown: Flash will be erased from 0x00001000 to 0x00033fff... Warning: Image file at 0x1000 doesn't look like an image file, so not changing any flash settings. Compressed 208112 bytes to 36251... Writing at 0x00001000... (33 %) Writing at 0x00017750... (66 %) Writing at 0x0002fa4b... (100 %) Wrote 208112 bytes (36251 compressed) at 0x00001000 in 3.9 seconds (effective 427.0 kbit/s)...

That is why I thing the firmware you are trying to flash was wrong. Maybe the firmware somehow get modified by renaming, copying in the Windows system. I suggest you try to down load the firmware and check it size. I do not have a Windows PC so I can not make the test.

[deus-est-machina]

O_o

It definitely has something to do with the Save link... from browser.

I've never seen that hehe always a first for everything. After cloning the repo it looks much better. (I was thinking the 200kB weird... but it didn't even click for me until you said it)

I'll flash it again when I'm at the office in the morning and let you know.

[deus-est-machina]

<3 you are a life saver! Thank you. After flashing the properly downloaded firmware, it works like a charm.