couldn't flash esp 07

[Heuberg]

Hello,

I have the esp 8266 01 already in use and it functions perfectly.

Now I want to use the version 07, but i can't flash the firmware.

This is my ESP on a PCB to connect it with jumper cables:


I soldered a 10k resistor between VCC and EN to enable the ESP without a jumper.


My programmer is a USBtoESP8266 (for the 01 version board):


This is the chematic i used:


Then it looks like this:


The Software i used is the CMD based "flash.cmd" whitch come with the Build 145.
I have already tried the arduino ide and other flasher, but always with the same result.

To startup the ESP I used this mapping:

PIN
VCC VCC (3.3V)
GND GND
GPIO0 PullUp
GPIO15 PullDown
CH_PD PullUp

Has Someone an idea what I make wrong or can do better?

[hugo11]

I just flashed an ESP 07 today.

what I did
connected 3,3V to VCC and EN
grounded GND GPIO15 & GPIO00

flased the firmware with the provided flasher, make sure you have the correct port & flash size (1M for esp07).

hope it helps.

[Heuberg]

Hi,

I got it

Just forget resistor on reset.

Now the esp is running nicely.