【STM32F723E-DISCO开发板试用体验】恢复出厂设置

@par How to use it ? 



In order to make the program work, you must do the following :

 - Open your preferred toolchain 

 - Rebuild all files

 - Open STM32 ST-Link Utility V4.1.0, click on "External Loader" from the bar menu then check "MX25L512G_STM32F723E-DISCO" box 

 - Connect the STM32F723E-DISCO board to PC with USB cable through CN1

 - Use "STM32CubeDemo_STM32F723E-DISCO_V1.1.0.hex" file with STM32 ST-Link Utility to program both internal Flash and external QSPI memory

 - Run the demonstration

 - copy the audio and video files provided under "Utilities/Media/" in the USB disk

 - Plug USB disk on CN19 connector 



@Note  If the user code size exceeds the DTCM-RAM size or starts from internal cacheable memories (SRAM1 and SRAM2),

       it is recommended to configure the latters as Write Through.

       This is ensured by configuring the memory attributes at MPU level in order to ensure cache coherence on SRAM1 and SRAM2.

       Please, refer to Template project for a typical MPU configuration.



@Note  If external memory is shared between several processors, it is recommended to configure it as Write Back (bufferable), shareable and cacheable.

       The memory base address and size must be properly updated.

       The user needs to manage the cache coherence at application level.



For more details about the MPU configuration and use, please refer to AN4838 “Managing memory protection unit (MPU) in STM32 MCUs”