将编译好的固件按照下面地址刷写到esp8266
出现下面错误是因为刷写的设置不对，按照图上设置：
load 0x40100000, len 26828, room 16
tail 12
chksum 0xc0
ho 0 tail 12 room 4
load 0x3ffe8000, len 2980, room 12
tail 8
chksum 0xa1
load 0x3ffe8bb0, len 3740, room 0
tail 12
chksum 0xce
csum 0xce
rf_cal[0] !=0x05,is 0xFF
ets Jan 8 2013,rst cause:2, boot mode:(3,7)
load 0x40100000, len 26828, room 16