Hi,
As you know that FRDM-K22 has K20 processor on board, the K20 is used to implement the JLink protocol. After you download the Segger J-Link OpenSDA Firmware with the procedure:power off/Pressing Reset/Power on, dragging the "Segger J-Link OpenSDA Firmware".
After you have loaded the "Segger J-Link OpenSDA Firmware", you can power off, then power on WITHOUT precessing the Reset button, the "OpenSDA – CDC Serial Port and PEMicro/Freescale Debug App" will show up in windows device manager. You can click Computer with right mouse on PC desktop->Properties->Device Manager->Ports to check the "Open SDA..."
Hope it can help you.
BR
XiangJun Rong