5e3b3b19a6
1. Change the type of cmd to 'int'; 2. Remove RT_LWIP_USING_RT_MEM macro;
1. M4 run on flash bank A. M0 run on flash bank B and the binary code of M0 is embedded into the code of M4. 3. Compile the project in M0/ first and then compile the project in M4/. Then flash it into the chip with JLink.