For anyone who wants to use openSTM32 with a different debugger. Try winIDEAOpen.
winIDEAOpen is a free debugger Software for all Cortex M microcontrollers. It supports ST-Link, Segger J-Link and iSYSTEM iTAG.50. You can use it as eclipse pulgin or as stand allone solution.
To use it as eclipse pulgin simply add
to your update sites and use the “Install New Software” feature.
Once you have done that, you can create a winIDEA Debug configuration. Using the new configuration the first time triggers the download of winIDEAOpen.
Make sure that you do not use a proxy for accessing update sites (eclipse bug).
If you want to use the iTAG.50 debugger you can buy it at amazon (50€).
I am using the iTAG.50 for all my Cortex M projects (infineon, ST, TI). It works fine and you have always the same debugger Software.