| 摘要 |
PURPOSE:To prevent the runaway of a program under transfer by storing a correcting program into an address that undergoes the first access after the reset processing and then correcting the defective part. CONSTITUTION:A correcting program verifies whether the data stored in a flush memory area 2 have a fault or not. If a defective part is decided in a fixed area of the data, the correcting program gives a request of data to an external device 3. Thus the device 3 sends the transfer data to a prescribed area 1-1 of a RAM area 1. Then the correcting program starts to transfer the transfer data to a prescribed area 2-1 of the flush memory area 2 after the data is written in the area 1-1. Thus the defective data can be corrected in the area 2. |
