ESP8266 Community Forum

- Mon Jul 13, 2015 12:10 pm #23152 Yes and No !
If you wish to backup firmware currently in the ESP module, and you are not sure which version it is, you are better using esptool.py to read flash and create a backup with something like that :

Code: Select allesptool.py --port /dev/ttyUSB0 read_flash 0x00000 0xFFFF backup-0x00000.bin
esptool.py --port /dev/ttyUSB0 read_flash 0x10000 0x3FFFF backup-0x10000.bin


- Mon Jul 13, 2015 12:37 pm #23153 Oooh ... those are awesome tips. Thank you so much for those.

If I wanted to better understand the "memory mapping" of an ESP8266 is there some reading material AND a thread you would suggest? I'd love to understand the relationships between ESP8266 memory areas and the physical files and intended uses ... but I can't seem to get it clear in my mind and would love to read some literature, think about it ... and have a place to discuss any questions. If there is already a thread on that topic, I'd like to read and re-use that ... otherwise I can create a new thread. Hoping we can all pitch in to help me (and hopefully others) understand the memory layouts.

Neil

Free ESP8266 book available for download here.

- Wed Jul 22, 2015 6:12 am #23909 @Kolban: Yes, your thinking resounds with mine.