ESP8266/ESP8285 启动报错 csum err ets_main.c 解决办法

现象

ets Jan 8 2013,rst cause:2, boot mode:(3,6)

load 0x40100000, len 25020, room 16
tail 12
chksum 0xef
ho 0 tail 12 room 4
load 0x00000000, len 0, room 12
tail 0
chksum 0xef
load 0x00000000, len 0, room 4
tail 0
chksum 0xef
csum 0xef
csum err
ets_main.c

解决办法：

FLASH刷写模式改为DOUT

关联 https://blog.csdn.net/QiongJiShengBian/article/details/84194915

现象观察 http://club.gizwits.com/thread-7259-1-1.html