Study and implementation of multi-pages FLASH bootloader based on DM642

To achieve the DSP system bootstrapping without relying on the host and emulator and to meet the requirement of portability and real-time ability of the system,self-startup procedure from the FLASH memory is usually needed by the DSP system.Through the analysis of the bootloading theory based on DM642,a method of multi-pages bootloader for large-capacity flash memory with FPGA control is proposed and realized.The process of the above method is elaborated and the method is implemented by the secondary bootloader program written by C-language.It is proved that this method provides a new direction for system development based on DM642 and is of great practical significance.