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Debugger misses start of the program in STM32CubeIDE

When debugging my firmware using STM32CubeIDE, the debugger seems to miss the start of the program. As an example, when I put breakpoints right at the top of main(), they are ignored. It's not only a couple of lines that are affected, but pretty much...

RPape.1 by Associate II
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Resolved! Is SWCLK required for SWD ?

The four wire interface from the ST-LINK V2 has no clock.Where does it say that ST devices do not require a clock for SWD ?Also why is it seemingly impossible to work through a hub ? This makes life very difficult.

JSchn.5 by Associate III
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