Posted on May 17, 2011 at 13:15Solved! The HSI was ON during debugging but OFF when running normally. According to the Flash Programming Manual PM0042: For write and erase operations on the Flash memory (write/erase), the internal RC oscillator (HSI...

Posted on May 17, 2011 at 13:15Hi Everyone, I'm having problems with flash programming in my current project. The project is based on the STM32F103RB and uses a two stage bootloader to load the main code into flash. The first bootloader is small and...