MSP432E401Y: Dual secure connections using MQTT (AWS-IoT) and HTTPS fail

Hi Stefan,

From what I can find out, no.  This really more of a "stack" issue rather than MSP432.

There are several postings that relate to this topic that might be helpful. Here is one.

I have been investigating the NDK stack. The root cause is a dynamic memory allocation failure of the SSL configuration, which is 16 kB in size. The two connections will then require 32 kB together and the total heap memory for this application is 128 kB. I will try to increase the heap memory.

Hi Stefan,

It's been a while since we have heard from you, so I'm going to assume you were able to move forward with your project.
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Hello Dennis.

Thanks for your reply. The main problem is most likely that two SSL channels are totally allocating 64 kB heap. So I believe I should reduce the default size that is allocated for the SSL input and output buffers.

Can I do this without rebuilding the SDK?