課程設(shè)計(jì)論文-基于fir的語(yǔ)音信號(hào)的數(shù)字濾波處理-資料下載頁(yè)
2025-08-11 09:21本頁(yè)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(dòng)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(yè)
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