查看ESP8266 Debug Notes的源代码

== Flash Related ==

1. 0x0 address bin read error

<pre>
 ets Jan  8 2013,rst cause:1, boot mode:(3,2)

ets_main.c
</pre>


2.spi mode error( use quad mode for dual flash)

<pre>
ets Jan  8 2013,rst cause:1, boot mode:(3,2)

load 0x40100000, len 612, room 16 
tail 4
chksum 0xef
load 0x88888888, len -2004318072, room 4 
flash read err, ets_unpack_flash_code
ets_main.c
</pre>


3.boot load jump error.(user.bin not correct)

<pre>
ets Jan  8 2013,rst cause:1, boot mode:(3,2)

load 0x40100000, len 612, room 16 
tail 4
chksum 0x12
load 0x3ffe8000, len 788, room 4 
tail 0
chksum 0x50
load 0x3ffe8314, len 264, room 8 
tail 0
chksum 0x4a
csum 0x4a

2nd boot version : 1.1
  SPI Speed      : 40MHz
  SPI Mode       : DIO
  SPI Flash Size : 4Mbit
jump to run user1

user code done
</pre>


4.dual flash(boot+user.bin mode) ==>use download tool version v0.9.3.1 and above

<pre>
ets Jan  8 2013,rst cause:1, boot mode:(3,3)

load 0x40100000, len 612, room 16 
tail 4
chksum 0x12
load 0x3ffe8000, len 788, room 4 
tail 0
chksum 0x50
load 0x3ffe8314, len 264, room 8 
tail 0
chksum 0x4a
csum 0x4a

2nd boot version : 1.1
  SPI Speed      : 40MHz
  SPI Mode       :   SPI Flash Size : 4Mbit
jump to run user1

Fatal exception (28): 
epc1=0x401001a4, epc2=0x00000000, epc3=0x00000000, excvaddr=0x0000009c, depc=0x00000000
Fatal exception (28): 
epc1=0x401001a4, epc2=0x00000000, epc3=0x00000000, excvaddr=0x0000009c, depc=0x00000000
Fatal exception (28): 
epc1=0x401001a4, epc2=0x00000000, epc3=0x00000000, excvaddr=0x0000009c, depc=0x00000000
</pre>


5. MX25L12835F，DIO OK, when changing to QIO:

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

load 0x40100000, len 26876, 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 
</pre>


6. 小 K mini，MXIC 25L80，worked in DOUT, when changed to QIO （DIO 错误类似）:

<pre>
 ets Jan  8 2013,rst cause:1, boot mode:(3,2)

load 0x40100000, len 27700, room 16 
tail 4
chksum 0xef
load 0x00000000, len 0, room 4 
tail 0
chksum 0xef
ho 12 tail 0 room 4
load 0x00000000, len 0, room 12 
tail 0
chksum 0xef
csum 0xef
csum err
ets_main.c 
</pre>

QOUT:

<pre>
 ets Jan  8 2013,rst cause:1, boot mode:(3,2)

load 0x40100000, len 26876, room 16 
tail 12
chksum 0xef
ho 0 tail 12 room 4
load 0xcccccccc, len -858993460, room 12 
flash read err, ets_unpack_flash_code
ets_main.c 
</pre>


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