No AT Response After Firmware Update
Posted: Wed Nov 01, 2017 7:51 amHi,
I decided to update AT firmware of my ESP12E module when some AT commands (ex GPIO) respond with error continuously.
I don't know where did I go wrong but module no longer respond any AT commands.
I am waiting for help. Thanks.
Connections:
RXD0 >> FTDI TX
TXD0 >> FTDI RX
EN >> pull-up 10k
RST >> pull-up 10k
GPIO16 >> RST
GPIO0 >> pull-up 2.2k ( PULL-DOWN WHILE FLASHING )
GPIO2 >> pull-up 2.2k
GPIO15 >> pull-down 2.2k
Command:
BOOT Log with 74880 baud:
I decided to update AT firmware of my ESP12E module when some AT commands (ex GPIO) respond with error continuously.
I don't know where did I go wrong but module no longer respond any AT commands.
I am waiting for help. Thanks.Connections:
RXD0 >> FTDI TX
TXD0 >> FTDI RX
EN >> pull-up 10k
RST >> pull-up 10k
GPIO16 >> RST
GPIO0 >> pull-up 2.2k ( PULL-DOWN WHILE FLASHING )
GPIO2 >> pull-up 2.2k
GPIO15 >> pull-down 2.2k
Command:
Code: Select all
$ esptool.py -p /dev/ttyUSB0 erase_flash
$ esptool.py -p /dev/ttyUSB1 write_flash 0x00000 boot_v1.7.bin 0x01000 user1.2048.new.5.bin 0x3fc000 esp_init_data_default.bin 0xfe000 blank.bin 0x3fe000 blank.binBOOT Log with 74880 baud:
Code: Select all
␍␊
ets Jan 8 2013,rst cause:2, boot mode:(3,6)␍␊
␍␊
load 0x40100000, len 2592, room 16 ␍␊
tail 0␍␊
chksum 0xef␍␊
load 0x00000000, len 0, room 8 ␍␊
tail 0␍␊
chksum 0xef␍␊
load 0x00000000, len 0, room 0 ␍␊
tail 0␍␊
chksum 0xef␍␊
csum 0xef␍␊
csum err␍␊
ets_main.c