STM32_keil compiled memory size analysis-EEWORLD

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Program Size: Code=28784 RO-data=6480 RW-data=60 ZI-data=3900 Meaning

1. Code: The size of the FLASH space occupied by the program, stored in FLASH.

2. RO-data: Read-only-data, program-defined constants, stored in FLASH.

3. RW-data: Read-write-data, initialized variables, stored in SRAM.

4. ZI-data: Zero-Init-data, uninitialized variables, stored in SRAM.

Simply put, when burning, the space occupied in FLASH is:

ROM(Flash) size = Code+RO-data+RW-data;

The size of the above code = 28784 + 6480 + 60 = 35324

= 35324/1024 = 34.5K

When the program is running, the space used by the chip's internal RAM is:

RAM size = RW-data+ZI-data

In the above code, RAM = 60 + 3900 = 3960

= 3960/1024 = 3.9K

From the above analysis, we get the memory occupied by this program

ROM = 34.5K

RAM = 3.9K

Then we searched for STM32C8T6 from Baidu Encyclopedia

ROM capacity: 64KB (64K x 8)

RAM capacity: 20K x 8

008_STM32_keil compiled memory size analysis

The following are the sizes and address ranges of the large, medium and small capacities of the STM32 series. If we use the internal flash, we must check the address size. In the next article, we will explain how to use the STM32 internal flash.

008_STM32_keil compiled memory size analysis

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