Method for storing and using bad block information of missile-borne FLASH chip
A technology of bad block information and chips, which is applied in the field of storage and use of bad block information of bomb-borne FLASH chips, can solve problems such as poor compatibility, difficulty in changing bad block information, and difficult management, so as to improve operating efficiency, facilitate maintenance and upgrades, and avoid The effect of bad block misoperation
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[0019] Example 1
[0020] A method for storing and using the bad block information of the flash chip on board, including the following measures:
[0021] a) Set the first page of the first block of the FLASH chip as the storage location of bad block information;
[0022] b) Add a bad block information write instruction to the FLASH chip control software of the ground download device, and write the bad block information into the first page of the FLASH chip. In the non-working state of the product, the ground download device sends a bad block information write instruction through the FLASH chip control software. After the FLASH chip control program in the main control chip program receives the instruction, it executes the FLASH chip write operation and first writes the data block address Set to 1, set the number of written pages to 1, and then receive the bad block information sent by the FLASH chip control software of the ground download device in turn. When the number of received d...
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