'Step' and 'Step Over' doesn't work while debugging

Hi, i am new with Keil and STM32F407VG. I tried to run a simple code (blinking 4 leds). And it worked with no problem. Afterwards, i tried to learn some simple debugging basics. And I can't reach...
DS-5 compiler defines eclipse highlighting

I am working on a C project in DS5 v5.22.0. I have set some preprocessor defines in Properties > C/C++ General > Paths and Symbols > Symbols . I see it set when I go to C/C++ Build > Settings > ARM C...
Send a file thru RS232

What is the best protocol to use to send a file thru RS232. It is gonna be a 256Kbyte of data.
Failed to start Cortex-A15 FVP becuase license issue

Hi guys, I was trying to launch a Cortex-A15 FVP emulaotr on Linux (Ubuntu 16.04). But I got an error like this: Does anyone know where I can get a license? or what's wrong with this case? $ ...
Lose JTAG connection after breakpoint

My application crashes after hitting a breakpoint 3 or 4 times, if allowed to run without breakpoints all seems well. Have tried this running my app on my board, my app on Keil eval board, and a Keil...