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General Working PrinciplesTestwell CTC++ measures Code Coverage for desktop / host applications and for embedded software. It works in three fundamental steps: instrumenting, testing and reporting.
Testing With the instrumented program, test execution by itself works as without instrumentation. The coverage data is written out during execution, for host applications typically directly to a data file ("MON.dat") .
BITCOV: Test execution on the targetTo run a program instrumented with one of the BITCOV variants on the target, perform the following steps.

BITCOV: Test execution on the target

To run a program instrumented with one of the BITCOV variants on the target, perform the following steps.

Download the program to the target.
Start it under debugger.
Set a breakpoint at some proper point near program end.
Let the program run.
When the program comes to the breakpoint, dump the CTC_array[] to host to a file with default name MON.dmp.

With these steps, one test cycle at the target machine is completed.

Note: MON.dmp file is a copy from the target memory CTC_array[]. It can be captured with the debugger (In Intel hex format, for example). Alternatively, the file can be written as a straight binary dump of the array (schematically:

fwrite(CTC_array, sizeof(CTC_array), sizeof(unsigned char),
                fp);