Re: [lwip-users] UDP and TCP (HTTP) sockets open at the same time?

[Robert Deschambault]

Hi,

Yes we are doing it for our project.  We use the UDP for device detection and discovery, and TCP/IP for communications with our device.  We are using a STM32F4xx Cortex-M4 with Keil's RTX rtos.  We are now porting out code to CMSIS-RTOS/RTX for the next generation of our device.

Good luck,

Bob

On Thu, Nov 6, 2014 at 12:34 PM, Robert Wood <address@hidden> wrote:

Hi all,

I have a reasonably simple project that needs some TCP/IP functionality. I need to use HTTP to pull a file from a NAS and I also need to have a socket open (potentially at the same time the the same time) to send and receive simple UDP packets. It's possible I will have to serve very simple files over HTTP as well.

It will run on a Cortex M3 or, more likely, M4 and use FreeRTOS.

Is lwIP capable of doing this? I have limited experience of embedded TCP/IP. I used uIP for sending and receiving UDP, but that seemed only capable of doing either TCP or UDP, bit not both. My understanding is that lwIP is more capable than uIP though.

Many thanks,

Rob

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Bob Deschambault
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