Freertos LWIP http server without external SDRAM

[stefanardo]

I am using iMXRT1021 with a custom board and I am having trouble with the http server example.

My board does not have an external SDRAM and  I am using the freertos sdk example simply changing the memory sequence and and some pins. I can compile and run it but I cannot have any ethernet activity and I never receive a packet,

With the baremetal example all works fine...

Is possible to have this kind of application with a board without external memory?

Regards.

Stefano

[Gavin_Jia · Accepted solution]

Hi @stefanardo ,

If your project is based on the MCUXpresso IDE, you can easily delete the SDRAM space and modify NCACHE_REGION to a piece of space from OCRAM.

Please run your project after making this change and try it again, see these two links:

1. NCACHE_REGION issue on RT1024 - NXP Community

2. 已解决: NCACHE region in internal RAM IMXRT1021 - NXP Community

Best regards,
Gavin