Device doesn't response after install firmware

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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dennis1213
Posts: 3
Joined: Thu Jul 22, 2021 5:20 am

Device doesn't response after install firmware

Post by dennis1213 » Thu Jul 22, 2021 5:58 am

Hi, I just started learning MicroPython.

I have a ESP-12F module, with some extra wiring.
Reset -> 10K Ohm -> VCC
EN -> 10K Ohm -> VCC
GPIO 0 -> 10K Ohm -> VCC
GPIO 15-> 10K Ohm -> GND
VCC -> 100uF -> GND

I used command line(esptool.py) or Thonny to install the MicroPython FW.(Erase flash before installing).
All results were successful.
But when I detach the GPIO0 from the GND and restart the module.
Screen from Mac's terminal or Thonny cannot enter REPL.

BTW, I have some D1 mini, with the same FW installation, they works fine.
So I really don't know what's going on... :( :( :(

Please give me some advice, thanks!



Error message from Thonny:
"Device is busy or does not respond. Your options:

- wait until it completes current work;
- use Ctrl+C to interrupt current work;
- use Stop/Restart to interrupt more and enter REPL."



Here is the log from installation of Thonny:
"
Erase command returned with error code 2/Applications/Thonny.app/Contents/Frameworks/Python.framework/Versions/3.7/Resources/Python.app/Contents/MacOS/../../../../../../../Python.framework/Versions/3.7/bin/python3.7 -u -m esptool --port /dev/cu.SLAB_USBtoUART erase_flash
esptool.py v3.1
Serial port /dev/cu.SLAB_USBtoUART
Connecting....
Detecting chip type... ESP8266
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz

Uploading stub...
Running stub...
Stub running...
Erasing flash (this may take a while)...
Chip erase completed successfully in 6.2s
Hard resetting via RTS pin...
Erasing done
------------------------------------

/Applications/Thonny.app/Contents/Frameworks/Python.framework/Versions/3.7/Resources/Python.app/Contents/MacOS/../../../../../../../Python.framework/Versions/3.7/bin/python3.7 -u -m esptool --port /dev/cu.SLAB_USBtoUART write_flash --flash_mode keep --flash_size detect 0x0 /Users/dennischang/Downloads/esp8266-20210618-v1.16.bin
esptool.py v3.1
Serial port /dev/cu.SLAB_USBtoUART
Connecting...
Detecting chip type... ESP8266
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz

Stub is already running. No upload is necessary.
Configuring flash size...
Auto-detected Flash size: 4MB
Flash will be erased from 0x00000000 to 0x0009afff...
Flash params set to 0x0040
Compressed 633392 bytes to 416081...
Writing at 0x00000000... (3 %)
Writing at 0x00005812... (7 %)
Writing at 0x0000c2fd... (11 %)
Writing at 0x00012288... (15 %)
Writing at 0x00018d46... (19 %)
Writing at 0x0001eb9c... (23 %)
Writing at 0x00023cc7... (26 %)
Writing at 0x00028c71... (30 %)
Writing at 0x0002dea5... (34 %)
Writing at 0x000337fa... (38 %)
Writing at 0x000395b1... (42 %)
Writing at 0x0003fa8a... (46 %)
Writing at 0x000466df... (50 %)
Writing at 0x0004c323... (53 %)
Writing at 0x0005208c... (57 %)
Writing at 0x00057cc8... (61 %)
Writing at 0x0005e510... (65 %)
Writing at 0x0006442d... (69 %)
Writing at 0x0006aeae... (73 %)
Writing at 0x000711a2... (76 %)
Writing at 0x000776c2... (80 %)
Writing at 0x0007ce1e... (84 %)
Writing at 0x00082eb6... (88 %)
Writing at 0x0008a6ad... (92 %)
Writing at 0x00091565... (96 %)
Writing at 0x00098501... (100 %)
Wrote 633392 bytes (416081 compressed) at 0x00000000 in 36.8 seconds (effective 137.8 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...
Done!
"

fabian
Posts: 1
Joined: Mon Aug 16, 2021 7:22 pm

Re: Device doesn't response after install firmware

Post by fabian » Mon Aug 16, 2021 7:27 pm

it's probably the wiring

first disconnect all cables, upload the code and then do the wiring

dennis1213
Posts: 3
Joined: Thu Jul 22, 2021 5:20 am

Re: Device doesn't response after install firmware

Post by dennis1213 » Thu Aug 19, 2021 8:42 am

fabian wrote:
Mon Aug 16, 2021 7:27 pm
it's probably the wiring

first disconnect all cables, upload the code and then do the wiring
Thanks for the advice.
I will try it out!

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