In Keil, program size: the meaning of code ro-data RW-data Zi-Data

In KeilCompileAfter the project is successful, the following bulid ouput window willOutputThe following is a piece of information: Program size: code = 6320 ro-Data = 4864 RW-Data = 44 Zi-Data = 1636 Meaning: Code: YesProgramMediumCodeByte size Ro-data: the command and constant size defined in the Program (read only) RW-data: variable size initialized in the Program (for personal understanding, ": read/write) Zi-data: the size of uninitialized variables in the Program (personal understanding: Zero initialize)     Rom (flash) size = code + RO-Data + RW-data; Ram size = RW-Data + Zi-Data You can use. Map to view the flash and RAM used.