Being here just 30 seconds.I have two questions, where the first one is about using a typdef union{} in other files, see my code here  // a.h  typedef union{    float vf;    unsigned char vuc[4];  }fc4;     // a.c  fc4 vfc4a;     // b.c  #include "a....

My work on stm32f405 just started last month. It means I don't know very much about it, and I have been working on other C/C++ applications development. The stm32 MCU board I have is given in snapshots.I have been working on time interval's computati...