I have one system with Xilinx Spartan-6 that use Microblaze processor (8.50.c). In this system I have used Ethernet Lite. As a starting point I used the demo that I found in FreeRTOs.
Everything works fine if I use the system in “Debug” mode (compiling with -O0 optimization), but if I switch to “Release” mode (compiling with -O2 optimization) the transfer performance is much degraded.
Some advice on what I can check ?
Thanks very much.