I used TWR-KW24D512 Dev Board.
The OpenSDA chip is programmed the firmware downloaded from segger website.(JLink_OpenSDA_2015-10-13.sda)
The UART 1 is configured to baud rate 115200, 8N1.
But PC fails to tx/rx frames from the dev board from the mini USB port.
Can you help point out what is the cause of the issue?