Technology of Multi-program In-circuit Programming in Embedded System

A method of multi-program in-circuit programming is presented in embedded system according to the demand of locating multi-program in the main chip,in which the key technices are adopted based on MC9S12DG128 to achieve the allocation of system resource among multi programs such as dividing technic of flash memory space,vector redirect,design of supervisory control program.The actual application in the fundamental platform of robot development for education show that the embedded system which adopts the technic of multi-program in-circuit programming runs stably and updates conveniently.