CODEWITHSUNDEEP
esp8266firmwareflashingesptool
Joseph Higgins
Joseph Higgins

Reputation: 11

Having trouble with programming ESP8266-01 chips. Connection Issue?

I'm trying to program these ESP chips but in order to upload to them, I need something called 'esptool.py' and flash the firmware on each chip in order to do so. I have got to a point where I have the chip connected and I am giving the prompt this command

"esptool.py --port COM6 --baud 74880 --trace --before no_reset erase_flash"

. In total, it comes out with this error:

"A fatal error occurred: Failed to connect to Espressif device: Invalid head of packet (0x08)"

I have researched this problem, and they have said that there must be something wrong with the USB interface that I am using. I don't this is the case because as it is uploading the BLUE LED is lighting up in synchronization with the command line.

esptool.py --port COM6 --baud 74880 --trace --before no_reset erase_flash
esptool.py v2.7
Serial port COM6
Connecting...TRACE +0.000 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.012 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    9898521581051581 0515810535830d15 | ..R.........5...
    832d158b0515ab05 158105           | .-.........
.TRACE +0.053 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.002 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.012 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    9a9a52158b0515ab 0515810515810515 | ..R.............
    810515810515830d 15830d           | ...........
.TRACE +0.052 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.000 Remaining data in serial buffer:
    9898521581051581 0535830d15832d15 | ..R......5....-.
    8b05158105158105 158105           | ...........
.TRACE +0.052 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.000 Remaining data in serial buffer:
    9a9a52158b05158b 0515810515810515 | ..R.............
    810515810515810d 15830d           | ...........
.TRACE +0.052 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.012 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    9898521581051581 0d15830d158b0515 | ..R.............
    8b05158105158105 158105           | ...........
.TRACE +0.051 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    9898521581053583 0d15832d158b0515 | ..R...5....-....
    ab05158105158105 158105           | ...........
_TRACE +0.051 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    98985215810d1583 0d158b05158b0515 | ..R.............
    8105158105158105 158105           | ...........
_TRACE +0.051 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    929a521581051581 0515810515810515 | ..R.............
    810515830d15830d 158b05           | ...........
_TRACE +0.052 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    9898521581051581 0d15830d158b0515 | ..R.............
    8b05158105158105 158105           | ...........
_TRACE +0.051 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.002 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.000 Remaining data in serial buffer:
    9a9a52158b0515ab 0515810515810515 | ..R.............
    810515810515830d 15830d           | ...........
_TRACE +0.051 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    929a521581051581 0515810515810515 | ..R.............
    810535830d15832d 158b05           | ..5....-...
.TRACE +0.051 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    9898521581051581 0515810515830d15 | ..R.............
    8305158b05158105 158105           | ...........
.TRACE +0.052 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.000 Remaining data in serial buffer:
    98985215830d158b 05158b0515810515 | ..R.............
    8105158105158105 15810d           | ...........
.TRACE +0.053 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.000 Remaining data in serial buffer:
    9898521581051581 0d15830d158b0515 | ..R.............
    8b05158105158105 158105           | ...........
.TRACE +0.053 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    9a9a52158b0515ab 0515810515810515 | ..R.............
    810515810515810d 15830d           | ...........
.TRACE +0.051 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.002 Remaining data in serial buffer:
    98985215830d158b 05158b0515810515 | ..R.............
    8105158105158105 158105           | ...........
_TRACE +0.051 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    9898521581051581 0515810515830d15 | ..R.............
    8305158b05158105 158105           | ...........
_TRACE +0.052 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.002 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.012 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    929a521581051581 0515810515810515 | ..R.............
    810515830d15830d 158b05           | ...........
_TRACE +0.051 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    9898521581051581 0515810d15830d15 | ..R.............
    8b05158b05158105 158105           | ...........
_TRACE +0.051 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.002 Remaining data in serial buffer:
    98985215830d1583 0d158b05158b0515 | ..R.............
    8105158105158105 158105           | ...........
_TRACE +0.052 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    9a9a52158b0515ab 0515810515810515 | ..R.............
    810515810515830d 15830d           | ...........
.TRACE +0.051 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.002 Remaining data in serial buffer:
    98985215810d1583 0d158b05158b0515 | ..R.............
    8105158105158105 158105           | ...........
.TRACE +0.052 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.000 Remaining data in serial buffer:
    9898521581051581 0515810d15830d15 | ..R.............
    8b05158b05158105 158105           | ...........
.TRACE +0.052 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.012 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.001 Remaining data in serial buffer:
    9898521581051581 0d15830d158b0515 | ..R.............
    8b05158105158105 158105           | ...........
.TRACE +0.052 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.001 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.
TRACE +0.013 Read 1 bytes: 08
TRACE +0.000 Read invalid data: 08
TRACE +0.000 Remaining data in serial buffer:
    929a52158b051581 0515810515810515 | ..R.............
    810515810d15830d 158b05           | ...........
.TRACE +0.052 command op=0x08 data len=36 wait_response=1 timeout=0.100 data=
    0707122055555555 5555555555555555 | ... UUUUUUUUUUUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    55555555                          | UUUU
TRACE +0.000 Write 46 bytes:
    c000082400000000 0007071220555555 | ...$........ UUU
    5555555555555555 5555555555555555 | UUUUUUUUUUUUUUUU
    5555555555555555 5555555555c0     | UUUUUUUUUUUUU.

A fatal error occurred: Failed to connect to Espressif device: Invalid head of packet (0x08)

I was expecting it to connect to the chip and erase the flash drive or something, but there is obviously a connection issue.

Here is a link to my other forum: Link

Upvotes: 1

Views: 2830

Answers (0)

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