LPC Microcontrollers中的主题 LPC54018,running both https get and mqtt client in the same device

LPC54018,running both https get and mqtt client in the same device

nick_ng — Wed, 24 Jul 2019 04:15:57 GMT

Hi,

I am running out of idea how to make my https get connection works while my mqtt client has already connected to a broker and running.

Are there any hints/tips on running https connection,i.e. getting a file over https while keeping a mqtt client connecting to another broker ?

For example, do I need to disconnect the mqtt connection during the procedure of connecting the https server?

Thanks

Re: LPC54018,running both https get and mqtt client in the same device

xiangjun_rong — Mon, 29 Jul 2019 06:19:20 GMT

Hi, Nick,

I have asked AE team, I will give you a reply after I get feedback.

XiangJun Rong

Re: LPC54018,running both https get and mqtt client in the same device

xiangjun_rong — Tue, 30 Jul 2019 04:29:09 GMT

Hi, Nick,

This is AE reply:

"You can use different sockets to connect mqtt server and https server that means you can keep mqtt connection while connecting https server.

Xiangjun Rong

Re: LPC54018,running both https get and mqtt client in the same device

nick_ng — Wed, 31 Jul 2019 00:54:18 GMT

Hi Xiangjun,

Thank you for your reply.

I did the same thing.. but I got two issues..

1. When I was trying to run ONLY the httpS to get a file, I always not able to get the last embedtls buffer size packet e.g the last 4096 bytes of that file

2. When I was trying use both the mqtt and https all together in the awsfreertos i.e. mqtt connected and subscribed to some topics and then triggered a download action (HTTPS get), during the phase of hand shaking, it jumps to hardfault.

Any ideas?

Thanks in advance,

Nick

Re: LPC54018,running both https get and mqtt client in the same device

xiangjun_rong — Thu, 01 Aug 2019 09:38:39 GMT

Hi, Nick,

You have to get the line which leads to hardware fault error although it is difficult.

XiangJun Rong