stm32 memory structure-EEWORLD

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This is the onboard SRAM, which belongs to the external SRAM. The starting address is 0x68000000. I don’t understand why this address is used.

This is the SRAM inside the core, which is divided into two parts: normal memory, starting at address 0x20000000, totaling 128KB, which can be accessed by any peripheral, and CCM memory, starting at address 0x10000000, totaling 64KB, but can only be accessed by the CPU.

In the memory management experiment, we mainly used the malloc and free functions to apply for and release memory. After using malloc to apply for memory, the returned value is the first address after the application. At the same time, after applying for an address and pointing the pointer to the address, the application must be freed after using it once, otherwise it will cause the so-called "memory leak". Over time, it will affect the use of memory.

I am using Atom's program. Regarding the final definition of memory, Atom uses three arrays to represent the starting address and size respectively. It makes me dizzy, but I can still understand it by looking back step by step.

Keywords：stm32 Reference address：stm32 memory structure

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