| 摘要 |
In a memory rewriting apparatus, it is confirmed first that a check program is present at a head address of a storage area (132) in a flash ROM (13) of a microcomputer (11) in an ECU (10) for storing an application program, when it is determined by a boot program in the flash ROM (13) that the application program is to be executed. The processing proceeds to the application program after the execution of the check program. Thus, it will not occur that the processing jumps to the application program when the application program is not present. As a result, erroneous operation of the ECU (10) due to an erroneous execution of the program can be prevented. <IMAGE> |
