There is no suitable emulator so to get started you will need a board.
I’d also recommend ordering the audio mezz board at the same time. The audio mezz is very cheap and combines a UART for debugging together with level shifters to interface with other electronics and access to the DB410C audio features.
You can take a look at other peoples projects for ideas: https://www.96boards.org/projects/ . Be warned that this list covers all the 96Boards, not just DB410C.