[Solved] stm32 Failed to Download: Error: Flash Download failed – “Cortex-M3”


Error:Flash Download failed – “Cortex-M3”



1. The correct device is not selected

2. The boot file does not correspond to the memory size

In C/C++

Large capacity chip corresponds to STM32F10X_HD,USE_STDPERIPH_DRIVER

Medium capacity corresponds to STM32F10X_MD,USE_STDPERIPH_DRIVER

Small capacity corresponds to STM32F10X_LD,USE_STDPERIPH_DRIVER

After modifying the letters, it is also necessary to confirm that there is a startup file with corresponding capacity in the project CORE file

3. Another place to set memory

Flash Dowmload in Debug Settings

Add correct Flash capacity through ADD/Remove

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