For my xmega16A4 FatFS mp3 player I get that warning for my spiC_wrt() in my main.c file.
init_media(); // warning here
In vs1011.c : init_media() -> sd_cmd() -> spiC_wrt()
Since I include vs1011.h in main.c, why would it give this warning? Why doesn't it know about that function via header file just like it knows about init_media() ? I know that putting a func. declaration or extern would fix it though.
thanks in advance