System Workbench for STM32

Sir ,

I am novice to SystemWorkbench .

I haven't set up openocd but SystemWorkBench can load/debug programs to STM32F4 Discovery Board .

While with custom board and st-link , it cannot load/debug programs.

Please let me know whether in this scenario openocd needed or not . And if needed how can I proceed ?

- Pinkesh