Dear all: I modified MCBSTM32F400 RL-CAN example. My problem is when I try to use math.h or stdio.h function, such as modf(), sprintf() etc. and then output string by LCD function, it shutdown!! But if I changed the order of these program lines upward or downward, it works!! It almost randomly occurs shut-down when I added some codes in somewhere. But it compiles ok. I use J-link to debug the codes, the results by using those function are OK, but just I want to show these variables in LCD, it crashed. It really bother me for few days. Please help me.
best regards
HSLAN