Method for rapidly upgrading embedded software and embedded device

The invention discloses a method for rapidly upgrading embedded software and an embedded device. The method for rapidly upgrading embedded software includes the following steps: firstly, valid data in targeted upgrade files should be confirmed and the targeted upgrade files should be divided into N valid data blocks. Then, the numberivalid data block should be read and whether the numberivalid data block is the same as original data block should be checked. If the numberivalid data block is the same as original data block, ishould plus 1 to get a newi. At the same time, whether the newiis greater than N should be judged. If the newiisn't greater than N, the procedure of reading the numberivalid data should be repeated. However, if the numberivalid data block is different from original data block, data in the numberivalid data block should be checked that whether the data in the numberivalid data block consists of the same number in hexadecimal number. If the data in the numberivalid data block consists of the