search

jeelabs / esp-link

esp8266 wifi-serial bridge, outbound TCP, and arduino/AVR/LPC/NXP programmer
Other
2.84k stars 723 forks source link

Basic question about flashing the firmware #207

Closed FernandoGarcia closed 7 years ago

FernandoGarcia commented 7 years ago

Hi!

Sorry for this basic question but I can't find the answer in anywhere.

In this instructions say:

"Download the latest release or use the user1.bin and user2.bin files that are produced by the build process. You will need to flash the bootloader, the firmware, blank wifi settings, and init data. Detailed instructions are provided in the release notes. . . . The short version for the serial flashing is:

flash boot_v1.X.bin from the official SDK or from the release tgz to 0x00000
flash blank.bin from the official SDK or from the tgz to 0x3FE000
flash esp_init_data_default.bin from the official SDK or from the tgz to 0x3FC000
flash user1.bin to 0x01000
be sure to use the commandline flags when flashing the bootloader to set the correct flash size
some of the addresses vary with flash chip size

" What's the address for user2.bin when using a ESP-12 (nodeMCU V3) or it's alternative to user1.bin?

Best regards.

harmeetsingh-work commented 7 years ago

I am using ESP12F 4MB and address for user2.bin I use is 0x81000 firmware/user2.bin

FernandoGarcia commented 7 years ago

Hi! @blackadmin Thanks for your answer! @tve can you confirm this info and add it to documentation? Best regards.

hetii commented 7 years ago

Well ... I flash my module by: esptool.py --port /dev/ttyUSB0 --baud 230400 write_flash -fs 32m -ff 80m \ 0x00000 boot_v1.5.bin 0x1000 user1.bin \ 0x3FC000 esp_init_data_default.bin 0x3FE000 blank.bin and it boot fine, so for what is user2.bin ?

BTW I also try compile tags/v2.2.3 but it end on: make: *** No rule to make target '/ld/eagle.app.v6.new.1024.app1.ld', needed by 'build/eagle.esphttpd1.v6.ld'. Stop.

Any success to build it from source ?

harmeetsingh-work commented 7 years ago

Might this help https://github.com/jeelabs/esp-link/issues/155

tve commented 7 years ago

user2.bin is only needed for over-the-air updates. The serial flashing does not need user2.bin.

harmeetsingh-work commented 7 years ago

@tve Yes you are right, but there was a scenario with me when esp was crashing on boot and the crash was due to code in user2.bin, in that case user2.bin had to be flashed serially.