Do you have the example code for the STM32?  Even just the mbedtls config
and lwip config files would be good starting point.

I have found that it is getting certificate rejections from chrome, usually
two or three before it accepts the certificate.  Since I only have one
certificate, I am not sure why it is being rejected several times before
being accepted.

I am finding that I lwip is timing out on some packets after the 4 retries
in the http polling.

Thanks
Trampas

On Sat, Feb 22, 2020 at 3:37 AM goldsi...@gmx.de <goldsi...@gmx.de> wrote:

> Am 21.02.2020 um 21:25 schrieb Trampas Stern:
> > Simon, sorry about that I assumed since you asked I would send the file.
> >
> > One my continual https problem, I see no end in sight the best I can
> > tell at the moment is that I am getting packets which are not being
> > processed.  That is I am getting retry errors on the polling as packets
> > have been received but not processed.  I have not figured out the altXXX
> > code and what is going on enough to determine root cause.   My guess is
> > that the testing on the https was done with one active connection, and
> > not with multiple and thus maybe their is a bug with multiple
> > connections. However I can not confirm this.
>
> No. We're successfully using that server on an STM32 with mbedtls. We
> also added crypto hw support for the STM32 based on mbed OS and for a
> 3rd party TPM-like chip. It works like a charm, once you've got the
> protocols and the memory set up correctly.
>
> I admit it's not as easy as pure http, but apart from memory setup,
> these were mbedtls issues, not lwIP issues.
>
> Regards,
> Simon
>
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