The design of Interface Circuit Based on the TMS320c5410 DSP
Abstract :The interface circuit which discussed by this paper means the keyboard and screen's connected electric circuit.Firstly,this paper introduced the develepment and applied realms of the domestic and international digital signal process(DSP),at the same time,it analyzed the rule and meaning of the arithmetic figure signal processor in this graduate design.Secondly it introduced the basic concept of the DSP,the development and function characteristics of the slice of chips in DSP,etc.Then according to the topic of this graduate design,it introduced some related techniques in DSP(such as break off,a line connects a peoples's etc.)What's more ,this text also introduced a new kind keyboard and screen's interface chips,which called HD7279A.
The thesis completed the basic design of hardware circuit and the design of software procedure.
In the aspect of hardware,by using the McBSP in the DSP to establish a correspondence communicated method with HD7279A,and through the control of the HD7279A's connected chip ,then to control the system's keyboard and screen.
Ih the software procedure's design aspect,by the TMS320C54x DSP gathered software to develop the enviroment of CCS,which can be used to ajust, translate and process the procedure of this lesson.
Key words:DSP(digital signal processor),HD7276A(keyboard and manigestations' interface chip),CCS