Creation of Custom Target over Serial Interface

I am attempting to learn custom target creation and have been following the step by step insturctions on on doing so. As practice I am set up with a Texas Instruments MSP-EXP430G2 evaluation board.

I got through the creating and testing the framework however, when testing the target hardware using the testTarget(hw,'hardware') function I get a failure everytime. I have set up my board to use hardware UART and set the COM and baudrate of the device to match those that I am calling out in the .m file, but it still continues to fail.

Has anyone had issues with creating a new target and passing these inital tests? If so what did you do to resolve them? Any help would be much appreciated.

I have included my code as a reference(ps I removed my path and replaced it with PATH):

%% Create a framework...

tgt = createTarget('My ARM Cortex M Board Target','ARM Cortex-M','PATH');

saveTarget(tgt);

testTarget(tgt,'framework');

%% Specify the hardware board...

hw = createHardware('MSP430');

hw.DeviceID = 'ARM Cortex-M4';

map(tgt,hw,'MSP430');

show(tgt);

io = addNewSerialInterface(hw,'My Serial Interface');

io.DefaultPort = 'COM1';

io.DefaultBaudrate = 115200;

%% Test the target...

testTarget(tgt,'hardware');