Conflict in Boot modes GPIO2

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Re: Conflict in Boot modes GPIO2

By RichardS
- Wed Jun 24, 2015 8:35 am #21502 I presume GPIO15 is weakly pulled low internally, so if there is any glitch at startup it may go into SD loader mode.

I have seen issues myself leaving it float, others have too, so it is safest to pull low.

I work closely with Espressif direct and all their schematics they send me for various projects always have GPIO15 pull low... so they **MUST** know that they are doing, right?
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Re: Conflict in Boot modes GPIO2

By RichardS
- Wed Jun 24, 2015 8:38 am #21503 Sorry just read about GPIO2.... yes it can float :-) but for extreme safety in a commercial product its probably best to pull high.

Richard.
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Re: Conflict in Boot modes GPIO2

By cal
- Wed Jun 24, 2015 12:08 pm #21527
admin wrote:Sorry just read about GPIO2.... yes it can float :-) but for extreme safety in a commercial product its probably best to pull high.

Richard.


And I read your GPIO15 as GPIO2 and wondered why I remembered high/low pulling wrong.

LOL
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