Updating system of firmware of complex programmable logic device and updating method thereof

摘要

In the updating system, the CPLD has an original firmware version data and a PCH of a processing chip includes a storage which stores an updating identification code table and at least one updating firmware data. The updating identification code table has at least one updating identification code which is corresponded to the updating firmware data respectively. A processing unit of the processing chip has an identification code and an updating program. In the updating method, a first step is provided to capture the updating identification code table after the updating program is triggered. A second step is provided to capture the updating firmware data when the identification code is same as the updating identification code. A third step is provided to replace the original firmware version data from the updating firmware data through the PCH.