Versatile booting procedure for applications-software of microcomputer e.g. for the automobile industry, involves initially dividing the applications space up into a reset vector-space, etc.

摘要

Applications-storage space (18) is initially divided into reset-vector-space (20), pre-boot-software-space (22), main block (26) and fuse block (28). Fuse block (28) of applications-software -space is erased; fuse block (28) is programmed; main block (26) of applications-software-space is erased; main block (26) is programmed; fuse block is erased (70), and fuse block (28) is newly programmed. .