The meaning of program size:code=x ro-data=x rw-data=x zi-data=x

The meaning of program size:code=x ro-data=x rw-data=x zi-data=x

Code: The size of the flash the program occupies, stored in flash.

Ro-data (read-only data): Read-only-data, program-defined constants, such as const, stored in Flash.

Rw-data (Readable and writable data with initial value requirements):
Read-write-data, a variable that has been initialized, is stored in flash. Rw-data is copied from flash to SRAM when initialized.

Zi-data:zero-init-data, a writable variable that has not been initialized, is stored in an SRAM. Zi-data will not be counted as code because it will not be initialized.

ROM (Flash) size = Code + Ro-data + rw-data;
RAM size = Rw-data + zi-data
In short, it is the space occupied in flash when burning is written: Code+ro data+rw Data
When the program is running, the space used in the chip's internal RAM is: RW data + ZI data

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Total RO  size (Code + RO data)                56284 (54.96kb[Note: 54.96kB = 56284/1024kb], hereinafter) Total
RW  size (rw Data + ZI Da TA)              7424 (7.25kB) Total
ROM Size (Code + RO data + RW data)      56456 (55.13kB)

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