Got trouble from most beginning after flashing

All ESP8266 boards running MicroPython.
Official boards are the Adafruit Huzzah and Feather boards.
Target audience: MicroPython users with an ESP8266 board.
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Yurik
Posts: 1
Joined: Tue Jan 05, 2021 12:42 pm

Got trouble from most beginning after flashing

Post by Yurik » Tue Jan 05, 2021 12:58 pm

Hi

I have done the instruction and flashed two my boards ESP8266 mini D1 and Lolin NodeMcu V3 with latest stable Micropython. Everything went good but after it is completed...
C:\Python\Python38\Scripts>esptool.py --port COM4 --baud 115200 write_flash --flash_size=detect 0 D:\#Yuri\Downloads\esp8266-1m-20200902-v1.13.bin
esptool.py v3.0
Serial port COM4
Connecting....
Detecting chip type... ESP8266
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC: a0:20:a6:02:10:d8
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Auto-detected Flash size: 4MB
Flash params set to 0x0040
Compressed 588040 bytes to 388655...
Wrote 588040 bytes (388655 compressed) at 0x00000000 in 34.2 seconds (effective 137.7 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...
the modules LEDs are continuosly flashing and in serial terminal I have continuos flow of messages (it get readable in baudrate 74880)
12:53:42.808 ->
12:53:42.808 -> ets Jan 8 2013,rst cause:2, boot mode:(3,6)
12:53:42.808 ->
12:53:42.808 -> load 0x40100000, len 30712, room 16
12:53:42.843 -> tail 8
12:53:42.843 -> chksum 0xfc
12:53:42.843 -> load 0x3ffe8000, len 1004, room 0
12:53:42.843 -> tail 12
12:53:42.843 -> chksum 0x54
12:53:42.843 -> ho 0 tail 12 room 4
12:53:42.843 -> load 0x3ffe83f0, len 1064, room 12
12:53:42.843 -> tail 12
12:53:42.843 -> chksum 0x45
12:53:42.843 -> csum 0x45
12:53:42.877 -> rf_cal[0] !=0x05,is 0x00
12:53:42.910 ->
12:53:42.910 -> ets Jan 8 2013,rst cause:2, boot mode:(3,6)
12:53:42.910 ->


what is wron? I used different flasher programs in Linux and Windows but the result is the same.
Please advise

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Roberthh
Posts: 2272
Joined: Sat May 09, 2015 4:13 pm
Location: Rhineland, Europe

Re: Got trouble from most beginning after flashing

Post by Roberthh » Tue Jan 05, 2021 1:02 pm

Maybe you need to flash with a different flash mode. Try the various variants of the -fm option, as there are:

Code: Select all

  --flash_mode {keep,qio,qout,dio,dout}, -fm {keep,qio,qout,dio,dout}
                        SPI Flash mode

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