remote upgrade firmware...

[gorec2005]

will be nice posibility "remote upgrade firmware via wifi or from cloud..."
of course - from nodemcu.previous to nodemcu.next... :-)

[nodemcu]

A little complicated. NodeMCU firmware is bigger than 256KB.
currently the bootloader of esp8266 does not support two firmware >256KB.

[gorec2005]

Ok. but may be partially, part by part... or write it not by loader?

[nodemcu]

A firmware can receive from wifi and write to flash part by part.
but it can not overwrite the previous one, since there may be some power failure.
so, if the previous firmware stored in 0x000000, and the upgraded one in 0x100000.
the bootloader can't run the second.

[gorec2005]

but may be do this via multi step like a ElectroDragon's firmware cloud update?

[ghost]

it possible to write firmware from nodemcu or copy it from file in spiffs?
Executed program located in memory?

[clixx-io]

Yes it is.

I'm actually working on a set of tools called esptools which I will try to
finish off this weekend.

https://github.com/clixx-io/esptools

• espls - list files
• espcp - copy files to and from
• esprm - delete files
• espcat - show file contents
• espmv - move files

There's a few problems with remote upgrade however, as far as I know the
nodemcu firmware only allows one server at a time to run on one tcp/ip port.

So it would have to be worked into an application as far as I can see.

On Thu, Jan 15, 2015 at 7:28 PM, NeiroNx [email protected] wrote:

it possible to write firmware from nodemcu or copy it from file in spiffs?
Executed program located in memory?

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#33 (comment)
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[TerryE]

Superseded by #806 and #816.