ESP8266 Community Forum

Posted: **Sat Sep 12, 2015 4:26 pm**

Hello

I have just obtained an ESP8266
http://www.dx.com/p/esp-07-esp8266-serial-wi-f-wireless-module-w-built-in-antenna-compatible-with-3-3v-5v-for-arduino-400559#.VfSXNPTGBUN

I'm trying to flash this little sucker with some new firmware, but to no avail.
I use the ESP Flash Download tool V0.9.6
Sometimes i get this message:

Code: Select all

sp_init_data_default.bin_rep
test running : False
serial port opened
Connecting...
chip sync ok!
read reg error
com closed

CrystalFreq 26M

SPI Speed is set to 40MHz
SPI Mode QIO
Flash Size 8Mbit

COM3
Baudrate 115200

I have tried searching the all mighty web, but have found no one who has had the same problem as me. I hope someone here can help me with this

PS: I'm trying to do this through my Arduino UNO. The ESP8266 is connected to GND and 5v and RX to RX and TX to TX

Edit:
Now i got this:

Code: Select all

Erasing flash...
head:  8 ;total: 8
erase size :  163840
erase flash error
com closed

Edit: Figured out the issue with the flashing, though kind of embarrassing!
The sketch on which my Arduino was running was the "SoftwareSerialExample". This was interfering with the upload.
I uploaded a bare-bone code:

Code: Select all

void setup() {
}
void loop() {
}

Which solved everything!

I will leave this here, just to remind myself of my embarrassment!

ESP8266 Community Forum

Error flashing firmware [SOLVED]

Error flashing firmware [SOLVED]