My UART example works very well.  But, I want to do with the UART interrupt.  Currently it does not work because it always jumps to an infinite loop in the start up assembly code.Infinite_Loop:  // startup_stm32f411retx.s b Infinite_LoopHere is my so...

I had my C code running on NUCLEO-F411RE last week. I downloaded it with Keil uVision and STLink driver.  But, I did something when I tried to flash it today with an assembly code instead of the C code.  Now, I cannot flash the device.* A pop up win...