ESP8266 Community Forum

- Thu Feb 26, 2015 9:53 pm #10851 I made some progress in diagnosing my problem. I wasn't able to flash the ESP8266 device from within Eclipse with this Espressif DevKit, which uses the esptool utility.

It seems that the ESP is producing a lot of noise on GPIO.0. And I can get it to work if I tie GPIO.0 to GND instead of letting the USB-serial bridge control it (via esptool).

The USB-serial bridge does, in fact, pull that line low. But I think it only weakly pulls it low. And once it's released it bounces all over the place.

- Fri Feb 27, 2015 12:03 am #10854

i put original esp_iot_sdk_v0.9.5_15_01_23.zip example into example folder, follow the video step by step create project and put all the file into folder, replace your makefile to original, set all, set clean, all compile show me error...

Contact me by email <sleuthhound@gmail.com>

Unofficial Development Kit for Espressif ESP8266

- Fri Feb 27, 2015 1:41 pm #10907 Thank you very much for the DevKit.

How can you make user1.bin and user2.bin Files to use cloud uptade?
Is there a simple solution by editing the makefile or so?

EDIT: I found it out! In my makefile is a Variable named App and an explanation for it.
So i set App = 1 and Boot = old to get user1.bin.
Does anybody know what the Boot Variable in the makefile is for?

- Fri Mar 06, 2015 5:17 pm #11488 For anyone having trouble flashing the ESP from within Eclipse (which uses esptool)...I finally got reliable results by putting a 220 ohm resistor in the DTR-to-GPIO.0 line.