Apparatus for collecting trace information and processing trace information, and method for collecting and processing trace information

A system for collecting trace information comprising:

• a first apparatus, for collecting trace information outputted by a circuit which executes a program, and
• a second apparatus, for processing the trace information,
• wherein the first apparatus includes
• a target circuit which executes a same program a plurality of times;
• a processor configured to execute a procedure, the procedure comprising:
• generating a count value, which is initialized at every start of execution of the same program and incremented a value based on each execution cycle of the same program;
• fetching trace information from the target circuit;
• and
• outputting the trace information with the count value and
• wherein the second apparatus includes
• a processor configured to execute a procedure, the procedure comprising:
• acquiring trace information collected during more than one execution of the same program with the count value;
• gathering the acquired trance information into one;
• sorting the gathered trance information based on the count value;
• and
• storing the sorted trace information.

A method of collecting trace information of a circuit block constituting a circuit board, the method executed by a trace information collection apparatus provided on the circuit board and a trace information processing apparatus connected to the trace information collection apparatus, the method comprising:

• generating a count value, which is initialized at every start of execution of a same program and incremented a value based on each execution cycle of the same program executed a plurality of times by a target circuit;
• fetching and storing trace information from the target circuit;
• outputting the trace information with a count value generated at a fetching timing of the trace information;
• acquiring the trace information collected during more than one execution of the same program with the count value;
• gathering the acquired trace information into one;
• sorting the acquired trace information based on the count value;
• and
• storing the stored trace information.