基于dsp的fft實現(xiàn)課程設(shè)計論文-資料下載頁
2025-06-20 12:31本頁面
【正文】 MPY *QX+,A MAC *WI+0%,*QX,A ADD PX,16,A,B 。B:=(QR*WR+QI*WI)+PR ST B,*PX 。PR39。:=((QR*WR+QI*WI)+PR)/2 ||SUB *PX+,B ST B,*QX ||MPY *QX+,A MAS *QX,*WR+0%,A ADD *PX,16,A,B ST B,*QX+ ||SUB *PX,B LD *WR,T ST B,*PX+ ||MPY *QX+,A butterflyend: PSHM AR0 MVDK d_data_idx,AR0 MAR *PX+0 MAR *QX+0 BANZD group,*GROUP_COUNTER POPM AR0 MAR *QX LD d_data_idx,A SUB 1,A,B STLM B,BUTTERFLY_COUNTER STL A,1,d_data_idx LD d_grps_t,A STL A,ASM,d_grps_t LD d_twid_idx,A STL A,ASM,d_twid_idx BANZD stage,*STAGE_COUNTER MVDK d_twid_idx,AR0 fft_end: STM fft_data,AR2 STM fft_data,AR3 STM fft_out,AR4 STM K_FFT_SIZE*21,BRC RPTB power_end1 SQUR *AR2+,A SQURA *AR2+,A STH A,*AR4+power_end: STM fft_out,AR4 RPT K_FFT_SIZE1 PORTW *AR4+,PA0 NOP NOPhere: B here .end連接命令文件：/* SOLUTION FILE FOR */o m estartMEMORY{ PAGE 0: PARAM: org=100h len=1000h VECS: org=0FF80H len=0080H PAGE 1: SPRAM: org=2060h len=0020h DARAM: org=2200h len=0600h RAM: org=2800h len=0c00h}SECTIONS{ sine1 :PARAM PAGE 0 cosine1 :PARAM PAGE 0 fft_prg :PARAM PAGE 0 .bss :SPRAM PAGE 1 sine: align(512){}DARAM PAGE 1 cosine: align(512){}DARAM PAGE 1 d_input :RAM PAGE 1 fft_data :RAM PAGE 1 fft_out :RAM PAGE 1 STACK :SPRAM PAGE 1 .vectors :VECS PAGE 0 }22
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