ESP8266 Community Forum

- Mon Aug 31, 2015 4:26 pm #27492 hmm I rechecked everything and seems to me looking good.

I tried to update the firmware also with no success. I used the NodeMcuUpdater and tried to update write the the INTERNAL://NODEMCU (and several others) but it always breaks with

Code: Select allNote:Serial port connected.
Note:Begin find ESP8266.
Note:ESP8266 ACK success.
Note:ESP8266 ACK success.
Note:Set base address success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Note:Program flash success.
Error:Write flash timeout.

interesting thing is, that the timeout is always nearly at the same time for a special firmware (version).
So for example for the AI-v0.9.5.0 AT Firmware.bin it looks like this:

Code: Select allNote:Serial port connected.
Note:Begin find ESP8266.
Note:ESP8266 ACK success.
Note:Program flash success.
Note:ESP8266 ACK success.
Note:Set base address success.
Note:Program flash success.
Error:Write flash timeout.

I am really getting confused at this point.
As I read somewhre it might me a power problem, I even changed the power again. Now it is powerd by a 12V 2A -> 5v Voltage Regulator -> 3.3 Voltage regulator. So there should be more than enough power available.

- Fri Sep 04, 2015 10:41 am #27815 I hope this one helps. It works for me and I hope it will also works for you..
Here is the link.
http://thinkingparts.blogspot.com/2015/ ... et_13.html

- Fri Sep 18, 2015 2:52 pm #29381 I just wanted to make a short update.
I got some luck with my "flying wiring" to get one (on which I hadn't yet tried to put something on) to run in the AT command mode and could connect to a wifi etc.

Finally I got it now to the point that I am able to upload Arduino sketches, BUT only when using the Staging, not the Stable, version. And still I cannot upload using nodemcu or something else.
So currently I am kind of happy, that at least something works. But I am also still confused and also a bit frustraded, that I am not able to upload something different than a sketch.

- Sat Sep 19, 2015 12:45 pm #29454 Just to make sure, you didn't mention whether you had the reset pulled high. I've seen weird things leaving it float. Also make sure all your components have a common ground. IE: FTDI, UNO, (what ever you are communicating through.