Currently the EVS has 4 "output ports" implemented as functions within EVS: {{{EVS_OutputPort1(), EVS_OutputPort2(), EVS_OutputPort3(), EVS_OutputPort4()}}}

These are all identically hard coded to {{{OS_printf()}}}

The premise here seems logical -- to have several different destinations that the message may be sent. But the current implementation does not allow for that to really happen.

The proposal is to change this to a PSP implementation:

{{{CFE_PSP_SendEventToPort(uint32 PortNum, const char *Message);}}}

This single API could be used for all ports, and the PSP could switch based on the "PortNum" value if needed, or simply call {{{OS_printf}}} for all messages as it does in the current code.