what does system memory work actually in STM32F103 on ARM memory map?

Question

Now I'm trying to understand boot sequence of STM32F103x. As you already know this is based on cortex-m3. So I was trying to find this concept of boot such as STM32F103x.. But I can't find anywhere in document Where can I find boot sequence as STM32 on ARM memory map?

Because I want to know what does system memory work actually?

Currently. I'm trying to understand about system memory in cortex m3 address map. most examples are said "there are 2 area such as 0x08000000 Flash memory area and 0x1FFFF000 System memory area.

and I understood that Flash memory area is saving for the execute file and System memory is saving for bootloader.

for example, I can make one hex binary file from build which is using startup_CMSDK_CM3.s and startup_CMSDK_CM3.c in Keil uVision. Then I put one hex binary file into the STM32 MCU by using JTEG to 0x0800_0000 of flash memory area not system memory area.

I'm not sure the difference between system memory a flash memory and I want to know "What does system memory and area actually work?"

Answer 1

old_timer answer is good, so I just elaborate more on the STM32 part:

From here we can see the different boot pin for STM32:

https://electronics.stackexchange.com/questions/206521/how-to-use-external-st-link-to-debug-program-stm32f103-mcu

The bootloader for STM32 system memory is described in depth here:

http://www.st.com/content/ccc/resource/technical/document/application_note/b9/9b/16/3a/12/1e/40/0c/CD00167594.pdf/files/CD00167594.pdf/jcr:content/translations/en.CD00167594.pdf

In particular the location of bootloader firmware (for STM32F1xxx, page 54):

And the boot sequence (page 55):

And this is implementing the bootloader in Flash memory mode (F103):

http://blog.myelectronics.com.ua/stm32-usb-mass-storage-bootloader/

And I find this useful (start 1.40):

https://www.youtube.com/watch?v=3brOzLJmeek