Mini Router WN523N2 shocked ESP8266 every Minute

Uli
Posts: 2
Joined: Fri Jan 29, 2016 8:06 am

Mini Router WN523N2 shocked ESP8266 every Minute

Postby Uli » Fri Jan 29, 2016 7:41 pm

I noticed it at my OTA experiments. Once mDNS is used, the ESP throws an exception(0). It does this exactly 1 times per Minute. It makes no difference whether the WN523N2 is running in bridge or repeater mode. The error only occurs with mDNS. Web servers, etc. are stable

A new router firmware I have not found.
All other devices in the WLAN working well.

Error:

Code: Select all

Fatal exception 0(IllegalInstructionCause):
epc1=0x40106b06, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000


OBJ Dump:

Code: Select all

40106ad8 <__umodsi3>:
40106ad8:   2823b6           bltui   a3, 2, 40106b04 <__umodsi3+0x2c>
40106adb:   40f250           nsau   a5, a2
40106ade:   40f340           nsau   a4, a3
40106ae1:   17b547           bgeu   a5, a4, 40106afc <__umodsi3+0x24>
40106ae4:   c04450           sub   a4, a4, a5
40106ae7:   401400           ssl   a4
40106aea:   a13300           sll   a3, a3
40106aed:   023237           bltu   a2, a3, 40106af3 <__umodsi3+0x1b>
40106af0:   c02230           sub   a2, a2, a3
40106af3:   413130           srli   a3, a3, 1
40106af6:   ffc442           addi   a4, a4, -1
40106af9:   ff0456           bnez   a4, 40106aed <__umodsi3+0x15>
40106afc:   023237           bltu   a2, a3, 40106b02 <__umodsi3+0x2a>
40106aff:   c02230           sub   a2, a2, a3
40106b02:   f00d         ret.n
40106b04:   53cc         bnez.n   a3, 40106b0d <__umodsi3+0x35>
40106b06:   000000           ill      <<<< ---------------
40106b09:   564944           excw
40106b0c:   020c30           excw
40106b0f:   f00d         ret.n
40106b11:   000000           ill

The Bug is marked with <<<< ---------------


How can I fix this?

ESP_Faye
Posts: 1646
Joined: Mon Oct 27, 2014 11:08 am

Re: Mini Router WN523N2 shocked ESP8266 every Minute

Postby ESP_Faye » Mon Feb 01, 2016 11:13 am

Hi,

What is the version of your SDK, could you have a try with the latest ESP8266_NONOS_SDK_V1.5.2 ?

Uli
Posts: 2
Joined: Fri Jan 29, 2016 8:06 am

Re: Mini Router WN523N2 shocked ESP8266 every Minute

Postby Uli » Tue Feb 02, 2016 1:05 am


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