ST-LINK/V2 , cannot connect to target

1. not ST-LINK/V2 stick problem but problem of firmware downloaded to STM32 board

  (ST-LINK/V2 장치의 문제가 아니라 STM32의 펌웨어 빌드시 ST-LINK관련 PIN의 기능할당이 안되서 발생하는 문제일수 있음)

- due to downloaded firmware which some features are disabled

  (at first I can download my led blink example after downloading STM32F boards can not connected with ST-LINK stick

- SWD related pin are should be enabled

- STM32CubeMX create project default does not enable SWD related pins

- Pinout & Configuration > Pinout > Disable All Modes  makes SWD pins enable

 

 

- I used STM32 flash program which uses UART ( en.flasher-stm32_v2.8.0.zip )

  > boot pin chnage necessary