課程設(shè)計論文-基于fir的語音信號的數(shù)字濾波處理-資料下載頁
2025-08-11 09:21本頁面
【正文】 set 01hRCR1 .set 02hRCR2 .set 03hXCR1 .set 04hXCR2 .set 05hSRGR1 .set 06hSRGR2 .set 07hMCR1 .set 08hMCR2 .set 09hRCERA .set 0ahRCERB .set 0bhXCERA .set 0chXCERB .set 0dhPCR .set 0eh .if BSP = 0SPSA .set SPSA0SPSD .set SPSD0RDRR .set DRR10RDXR .set DXR10IMASK .set 0010h .endif .if BSP = 1SPSA .set SPSA1SPSD .set SPSD1RDRR .set DRR11RDXR .set DXR11IMASK .set 0400h .endif .asg AR0,FIR_INDEX_P .asg AR4,FIR_DATA_P .asg AR5,FIR_COFF_PWR_SUB_REG .macro val,addr 。寫McBsp控制寄存器 stm addr,SPSA nop stm val,SPSD nop .endmRD_SUB_REG .macro addr,acc 。讀McBsp控制寄存器 stm :addr:,SPSA nop ldm SPSD,acc nop nop nop .endmWAITTRX .macro 。等待串口中斷WAITR? RD_SUB_REG SPCR1,A and 11, A bc WAITR?, AEQ .endmPROGREG .macro progword 。與AD50二次通訊 stm 01h,RDXR WAITTRX stm :progword:,RDXR WAITTRX .endm wait .macro STM 0008h, AR2 RPT *AR2 NOP .endm .mmregs .global _c_int00 .sect .vectorsRESET b _c_int00 nop nop .space 19*4*16BRINT0 b recv nop nopBXINT0 b trans nop nop .space 4*4*16BRINT1 b recv nop nopBXINT1 b trans nop nop .space 4*4*16K_FIR_BFFR .set 16coff_fir_table .sect coff_fir.word 6fh,0f3h,269h,50dh,8a9h,0c99h,0ff8h,11ebh,11ebh,0ff8h,0c99h,8a9h,50dh,269h,0f3h,64hd_data_buffer .usect fir_bfr,40 .text_c_int00 ld 0h,DP stm 7ffh,SP ssbx INTM ssbx SXM st 2491h,SWWSR st 0ffe0h,PMST ST 0h,CLKMDtst: BITF CLKMD,1h BC tst,TC ST 1087h,CLKMD BITF CLKMD,1h RPT 0FFh NOP stm 5000h,ar7 stm 5000h,ar6fir_init stm 1,AR0 stm coff_fir_table,FIR_COFF_P stm d_data_buffer,FIR_DATA_P rptz A,K_FIR_BFFR stl A,*FIR_DATA_P stm (d_data_buffer+K_FIR_BFFR1),FIR_DATA_P stm K_FIR_BFFR,BKmcbsp_init 。初始化McBsp串口 rsbx CPL nop 。 cpl latency nop 。 cpl latency nop 。 cpl latency ld 0,DP ssbx INTM ssbx SXM WR_SUB_REG 0000H,SPCR1 WR_SUB_REG 0200H,SPCR2 WR_SUB_REG 000CH,PCR WR_SUB_REG 0000H,SPCR1 WR_SUB_REG 0000H,SPCR2 WR_SUB_REG 0040H,RCR1 。16 BITs WR_SUB_REG 0004H,RCR2 。Ignore FS after the first WR_SUB_REG 0040H,XCR1 。16 BITs WR_SUB_REG 0004H,XCR2 。Ignore FS after the first ld 100,A wait andm 0ff3fh, 54h 。set interrupts to e from serial ports not DMA 。by clearing bits 6 and 7 in DMPREC stm 0,RDXR WR_SUB_REG 0001H,SPCR1 。啟動McBsp串口 WR_SUB_REG 0201H,SPCR2 ld 100,A waitaic_init stm 0h,IMR orm IMASK,IMR 。二次通訊初始化AD50 stm 0ffffh,IFR PROGREG 0301h PROGREG 0410h ld RDRR,A ld RDRR,A stlm A,RDXR stlm A,RDXR rsbx INTM nop nop nopjs nop nop nop b jsrecv ldm RDRR,A 。ADC采樣數(shù)據(jù)經(jīng)濾波后發(fā)送到DAC輸出 stl A,*FIR_DATA_P+0% rptz A,(K_FIR_BFFR1) mac *FIR_DATA_P+0%,*FIR_COFF_P+0%,A andm 0fffeh,ah sth A,RDXR rsbx XF retetrans rsbx XF rete .end29 第 頁
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