I have downloaded twice, but I can't download it successfully.

 Hello everyoneI use STM32F429ZIT6 to make USB mass storage.Download DATA from NADN FLASH to the USB flash drive.I am currently experiencing a problem. When I am still transferring, I unplug the USB flash drive.The MCU only has TIME execution, the ma...

Hi everyone!! I am from TaiwanI am currently working on a project that records time using STM32F429IIT6VBAT is connected to the 3.3V output of the power supply.PDR_ON is connected to VDDPower on when VDD is powered offTime will be initializedProject ...