ESP8266 Community Forum

- Tue Sep 29, 2015 2:24 pm #30132 If you want to flash new AT frimware you need the bin files, you can always find them in SDK package released by espressif. In SDK there is a /bin/at directory. There is a readme.txt file and you can check at what address you should flash them. You have ESP-12, i assume it has 32Kbit of flash, so:

Code: Select allFlash size 32Mbit-C1: 1024KB+1024KB
boot_v1.2+.bin         0x00000
user1.2048.new.5.bin     0x01000
esp_init_data_default.bin   0x3fc000 (optional)
blank.bin              0xfe000 & 0x3fe000

Something like this should work.

- Mon Oct 05, 2015 8:17 am #30537 Great, thanks.
This is what I meant.
Cheers
Jon

- Mon Oct 05, 2015 10:16 am #30546 I bought this ESP :

http://www.aliexpress.com/item/Free-shipping-ESP8266-serial-WIFI-wireless-module-wireless-transceiver/2044444348.html?spm=2114.01020208.3.12.7HkIxJ&ws_ab_test=201556_5,201527_3_71_72_73_74_75,0_0

How do I know what size is its flash ( in order to flash it to the appropriate addresses ) ?

- Mon Oct 05, 2015 10:40 am #30549 You module looks like the old ESP-01, so it should be a 512KB flash.