There are problems using Ameba - rtos - D. Namely, on the RTL8720DN model. The examples use the target for RTL8721D, but I did not find the use of RTL8720DN anywhere in the code, as well as the targets for its assembly. The question arises how to build the firmware for this module and whether it is possible to use the current SDK from this git repository to write firmware for the RTL8720DN. Is it possible to use a target based on RTL8721D or how to make a custom target? I also wanted to clarify that I am not considering using the Arduino SDK. I am only interested in the standard SDK in c/c++.