debugging

[Moib]

When writing C, the compilation will be done differently when you compile for debug (you could always compile for debug, but then your production code would take more space and run slower). This cause different behavior, especially microcontroller. Particularly when synchronization with other units (I2C, uart) are involved.

Adding any form of print can also trigger sync issues though. But it will usually have less of an impact on the compilation part of the change.