DSP课程设计报告.doc

中国地质大学江城学院DSP课程设计报告一、实验内容：编写程序产生正弦波二、实验目的：1.熟悉DSP实验箱的功能及应用。2.巩固DSP书本知识，掌握编程知识。3.提高动手和知识的拓展能力。三、实验设备：一台HK-DSP实验箱、一台PC机四、实验步骤：1.配置实验箱，选择相应的芯片。2.建立工程文件。在project中点击new新建工程。3.在新建的工程中建立汇编源文件、链接文件和复向量文件，汇编源文件的名称必须与工程名和程序名一致，链接文件必须与程序名保持一致。4.编程。主程序：.title shiyan4.asm .mmregs .def start .ref d_xs,d_sinx,d_xc,d_cosx,sin_start,cos_startsin_x: .usect sin_x,360STACK: .usect STACK,10k_theta .set 286start: .text STM #STACK+10,SP STM #0,AR1 STM k_theta,AR0 STM #sin_x,AR7 STM #90,BRC RPTB LOOP1-1 LDM AR1,A LD #d_xs,DP STL A,d_xs STL A,d_xc CALL sin_start CALL cos_start LD #d_sinx,DP LD d_sinx,16,A MPYA d_cosx STH B,1,*AR7+ MAR *AR1+0LOOP1: STM #sin_x+89,AR6 STM #88,BRC RPTB LOOP2-1 LD *AR6-,A STL A,*AR7+LOOP2: STM #179,BRC STM #sin_x,AR6 RPTB LOOP3-1 LD *AR6+,A NEG A STL A,*AR7+LOOP3: NOPend: B end .end子程序：sin_start: .def sin_start,d_sinx,d_xsd_coef_s .usect coef_s,4 .datatable_s: .word 01C7H .word 030BH .word 0666H .word 1556Hd_xs .usect sin_vars,1d_squr_xs .usect sin_vars,1 d_temp_s .usect sin_vars,1 d_sinx .usect sin_vars,1 c_1_s .usect sin_vars,1 .text SSBX FRCT STM #d_coef_s,AR4 RPT #3 MVPD #table_s,*AR4+ STM #d_coef_s,AR2 STM #d_xs,AR3 STM #c_1_s,AR5 ST #7FFFH,c_1_s SQUR *AR3+,A ST A,*AR3 | LD *AR5,B MASR *AR3+,*AR2+,B,A MPYA A STH A,*AR3 MASR *AR3-,*AR2+,B,A MPYA *AR3+ ST B,*AR3 |LD *AR5,B MASR *AR3-,*AR2+,B,A MPYA *AR3+ ST B,*AR3 | LD *AR5,B MASR *AR3-,*AR2,B,A MPYA d_xs STH B,d_sinx RETcos_start: .def cos_start,d_cosx,d_xcd_coef_c .usect coef_c,4 .datatable_c: .word 0249H .word 0444H .word 0AABH .word 4000Hd_xc .usect cos_vars,1d_squr_xc .usect cos_vars,1d_temp_c .usect cos_vars,1d_cosx .usect cos_vars,1c_1_c .usect cos_vars,1 .text SSBX FRCT STM #d_coef_c,AR4 RPT #3 MVPD #table_c,*AR4+ STM #d_coef_c,AR2 STM #d_xc,AR3 STM #c_1_c,AR5 ST #7FFFH,c_1_c SQUR *AR3+,A ST A,*AR3 |LD *AR5,B MASR *AR3+,*AR2+,B,A MPYA A STH A,*AR3 MASR *AR3-,*AR2+,B,A MPYA *AR3+ ST B,*AR3 |LD *AR5,B MASR *AR3-,*AR2,B,A SFTA A,-1,A NEG A MPYA *AR3+ MAR *AR3+ RETD ADD *AR5,16,B STH B,*AR3 RET 链接文件：vectors.obj shiyan4.obj -o shiyan4.out -m shiyan4.map -e startMEMORY PAGE 0: EPROM: org=0E000H, len=1000H VECS: org=0FF80H, len=0080H PAGE 1: SPRAM: org=0060H, len=0020H DARAM1: org=0080H, len=0010H DARAM2: org=0090H, len=0010H DARAM3: org=0200H, len=0200H SECTIONS .text :EPROM PAGE 0 .data :EPROM PAGE 0 STACK :SPRAM PAGE 1 sin_vars :DARAM1 PAGE 1 coef_s :DARAM1 PAGE 1 cos_vars :DARAM1 PAGE 1 coef_c :DARAM2 PAGE 1 sin_x : align(512) DARAM3 PAGE 1 .vetors :VECS PAGE 0 复向量文件: .title vectors.asm .ref start .sect .vectors B start .end5.将文件加入工程。点击菜单project中的add files to project，选择要加入的文件添加到工程。6.工程的汇编链接。点击菜单project中的rebuild all，若汇编链接成功会生成.out文件。7装载可执行程序。点击菜单file中的lode program，装载.out文件。8执行程序。点击菜单debug中的run。9观察结果。五、实验小结：这次DSP试验使我巩固了DSP书本知识，掌握编程知识。在此基础上，理论结合实际，熟悉了DSP试验箱的功能及应用，提高了动手和知识的拓展能力。这个正弦波试验通过对课本上的程序进行修改和整合得以实现。这次课程设计期间，由于对一些知识点的生疏，我不得不边学边运用于实验，时刻巩固所学知识