ESP8266 Community Forum

- Sat Mar 21, 2020 5:44 pm #86141 Hi All.

I found a handfull of old ESP8266-01 in a drawer. (the ones with 'AI Cloud inside'). I'm trying to update the firmware to 1.6.2 off the Expressif website to no avail. The problems is that I see no errors, but I don't know what 'success' looks like either...

I have a 3.3v FTDI chip that's driving the ESP8266. Using the Expessif Download Tool, I set up the binary files (attached in screenshot), and I pressed START.

The PINS are:

Code: Select allFTDI -> ESP8266
RXD -> U0TXD
TXD -> U0RXD
VCC -> VCC
GND -> GND

ESP(CH_PD) = 3.3V
ESP(RST) = V3.3  ( I don't switch RST on/off, I just pull the plug)
ESP(GPIO0) = GND on BOOT

This is what I see in the DOS window:

Code: Select allC:\temp\Downloads\ESP8266_AT_Bin_V1.6.2_0\ESP8266_AT_Bin_V1.6.2\bin\blank.bin
C:\temp\Downloads\ESP8266_AT_Bin_V1.6.2_0\ESP8266_AT_Bin_V1.6.2\bin\esp_init_data_default_v08.bin
C:\temp\Downloads\ESP8266_AT_Bin_V1.6.2_0\ESP8266_AT_Bin_V1.6.2\bin\blank.bin
C:\temp\Downloads\ESP8266_AT_Bin_V1.6.2_0\ESP8266_AT_Bin_V1.6.2\bin\blank.bin
C:\temp\Downloads\ESP8266_AT_Bin_V1.6.2_0\ESP8266_AT_Bin_V1.6.2\bin\boot_v1.6.bin
C:\temp\Downloads\ESP8266_AT_Bin_V1.6.2_0\ESP8266_AT_Bin_V1.6.2\bin\blank.bin
C:\temp\Downloads\ESP8266_AT_Bin_V1.6.2_0\ESP8266_AT_Bin_V1.6.2\bin\boot_v1.6.bin
C:\temp\Downloads\ESP8266_AT_Bin_V1.6.2_0\ESP8266_AT_Bin_V1.6.2\bin\at\512+512\user2.1024.new.2.bin
======
CONNECT BAUD: 115200
============
.Uploading stub...
Running stub...
Stub running...
-----------------------
crc_efuse_4bit: 0
crc_calc_4bit: 8
48bit mac

 is stub and send flash finish

The firmware does not appear to update. I was able to open an Arduino Serial Monitor window and communicate AT commands with the ESP8266. There no errors that I could see either in the utility or the DOS window behind it. If I had bad connections, I wouldn't get this far, would I?

Detected info:
flash vendor:
5Eh : N/A
flash devID:
4014h
QUAD;8Mbit
crystal:
26 Mhz

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- Sun Mar 22, 2020 12:57 pm #86154 Ok I found a website that leads you right through the whole flash process:

https://www.allaboutcircuits.com/projec ... asier-now/

I missed a step using the Downloader - you have to check the boxes next to each binary file before the START.

D-oh.