esptool.exe -vv -cd nodemcu -cb 115200 -cp COM4 -ca 0x100000 -cf arduino_mega_server_esp8266.spiffs.bin
esptool v0.4.6 - (c) 2014 Ch. Klippel <
ck@atelier-klippel.de>
setting board to nodemcu
setting baudrate from 115200 to 115200
setting port from COM1 to COM4
setting address from 0x00000000 to 0x00100000
espcomm_upload_file
stat arduino_mega_server_esp8266.spiffs.bin success
setting serial port timeouts to 1000 ms
opening bootloader
resetting board
trying to connect
flush start
setting serial port timeouts to 1 ms
setting serial port timeouts to 1000 ms
flush complete
espcomm_send_command: sending command header
espcomm_send_command: sending command payload
read 0, requested 1
trying to connect
flush start
setting serial port timeouts to 1 ms
setting serial port timeouts to 1000 ms
flush complete
espcomm_send_command: sending command header
espcomm_send_command: sending command payload
espcomm_send_command: receiving 2 bytes of data
espcomm_send_command: receiving 2 bytes of data
espcomm_send_command: receiving 2 bytes of data
espcomm_send_command: receiving 2 bytes of data
espcomm_send_command: receiving 2 bytes of data
espcomm_send_command: receiving 2 bytes of data
espcomm_send_command: receiving 2 bytes of data
espcomm_send_command: receiving 2 bytes of data
espcomm_open
Uploading 3125248 bytes from arduino_mega_server_esp8266.spiffs.bin to flash at 0x00100000
erasing flash
size: 2fb000 address: 100000
first_sector_index: 256
total_sector_count: 763
head_sector_count: 16
adjusted_sector_count: 747
adjusted_size: 2eb000
espcomm_send_command: sending command header
espcomm_send_command: sending command payload
setting serial port timeouts to 10000 ms
read 0, requested 1
setting serial port timeouts to 1000 ms
warning: espcomm_send_command: didn't receive command response
warning: espcomm_send_command(FLASH_DOWNLOAD_BEGIN) failed
closing bootloader
flush start
setting serial port timeouts to 1 ms
setting serial port timeouts to 1000 ms
flush complete