JPS6426995A - Portable electronic device - Google Patents

Abstract

PURPOSE:To eliminate an unnecessary self-diagnosis and to execute the self diagnosis which must be executed only once by obtaining the first self-diagnosis as the self-diagnosis which might be executed only once or the self-diagnosis which must be executed only once and the second self-diagnosis as the self- diagnosis to be executed in each program processing start. CONSTITUTION:When a processing is started, a control element 11 executes a judging program, judges whether a self-diagnosis normal ending flag F is set or not and executes the first self-diagnosis. The control element 11 sets the self-diagnosis. The control element 11 sets the self-diagnosis normal ending flag F (S4) and ends the processing. Next, the control element 11 executes the judging program and judges whether the self-diagnosis normal ending flag F is set or not. By normally ending the first self-diagnosis, the second self- diagnosis is executed since the self-diagnosis normal ending flag is set. When the second half-diagnosis is normally ended, the control element 11 executes a normal processing program, executes a normal processing and ends the processing.