ESP8266 Developer Zone The Official ESP8266 Forum 2015-10-13T21:15:52+08:00 https://bbs.espressif.com:443/feed.php?f=6&t=1039 2015-10-13T21:15:52+08:00 2015-10-13T21:15:52+08:00 https://bbs.espressif.com:443/viewtopic.php?t=1039&p=4093#p4093 <![CDATA[Re: Clarification required for internal pull-up in CHIP_EN pin]]>
Sorry for the mistake in the english version of Hardware_User_Guide and we will modify it ASAP.

CHIP_EN has no internal pull-up resistor and it cannot be dangled.

EXT_RSTB has internal pull-up resistor and it can be left dangled when it is not used.

Any more questions, please let us know.

Thanks.

Statistics: Posted by Espressif_Kelly — Tue Oct 13, 2015 9:15 pm


]]>
2015-08-31T18:19:36+08:00 2015-08-31T18:19:36+08:00 https://bbs.espressif.com:443/viewtopic.php?t=1039&p=3506#p3506 <![CDATA[Clarification required for internal pull-up in CHIP_EN pin]]>
In the English version of Hardware User Guide (0B-ESP8266__Hardware_User_Guide__EN_v1.1.pdf), Section 2.2.2, it is said "There is an internal pull-up in the CHIP_EN pin, so no external pull-up is needed.". However we are not able to find the correspond Chinese string in the Chinese version (0B-ESP8266__Hardware_User_Guide__CN_v1.1.pdf) of the document, which sort of making us a bit confused.

Could you confirm whether the internal pull-up does exist or not?

Best Regards.

Statistics: Posted by hfcheng — Mon Aug 31, 2015 6:19 pm


]]>