dsp與計(jì)算機(jī)的異步串行通信課程設(shè)計(jì)論文(精)-資料下載頁(yè)
2025-06-26 17:23本頁(yè)面
【正文】 } VECS PAGE 0.text: {} PROG PAGE 0.data: {} DATA PAGE 1.stack: {} STACK PAGE 1}5000系列DSP匯編語(yǔ)言：.title ex3.global _c_int00.mmregs.def _c_int00UART_BASE .set 0x0000THR .set UART_BASE+0x00RBR .set UART_BASE+0x00IIR .set UART_BASE+0x20IER .set UART_BASE+0x10FCR .set UART_BASE+0x20LCR .set UART_BASE+0x30MCR .set UART_BASE+0x40LSR .set UART_BASE+0x50MSR .set UART_BASE+0x60SCR .set UART_BASE+0x70DLL .set UART_BASE+0x00DLM .set UART_BASE+0x10BAUDLOW .set 60hBAUDHIGH .set 61hBAUDCTL .set 62hRDDLM .set 63hRDDLL .set 64hRDTEMP .set 65hIER_ADDR .set 66hFCR_ADDR .set 67hUART_STATUS .set 68hREV_ADDR .set 69hSEND_ADDR .set 6ahTHRE .set 0x0020DR .set 0x0001 LEN .set 48.dataSENDBUF:.string Wele to use SanZhi DSP Experiment Instruments! .sect .vectorsrst: B _c_int00NOPNOP.space 15*4*16int0: B _m 。ST16550C中斷信號(hào)連到外部中斷0NOPNOPint1: B _mNOPNOPint2: B _mNOPNOP.space 13*4*16.text_c_int00:LD 0h,DPSTM 3000h,SPSTM 07FFFh,SWWSRSTM 28h,AR1 。設(shè)置外部等待時(shí)間倍數(shù)ST 0001h,*AR1SSBX INTMSTM 0000h,CLKMD 。5MHz工作tst BITF CLKMD,1hBC tst,TCuart_init: ST 00H,IER_ADDR 。禁止所有中斷PORTW IER_ADDR,IERST 00H,FCR_ADDR 。禁止FIFOPORTW FCR_ADDR,FCRPORTR LCR,RDTEMP 。設(shè)置波特率為9600bpsORM 0080H,RDTEMPPORTW RDTEMP,LCRLD 0018H,AAND 00FFH,ASTL A,BAUDLOW 。置波特率低位PORTW BAUDLOW,DLLLD 00H,ASTL A,BAUDHIGHPORTW BAUDHIGH,DLM 。置波特率高位ANDM 0FF7FH,RDTEMPPORTW RDTEMP,LCRLD 03H,A 。8 BIT, 1 STOP, NO PARITYSTL A,BAUDCTLPORTW BAUDCTL,LCRSTM SENDBUF,AR0 。發(fā)送字符串STM LEN,BRC 。設(shè)置字符串長(zhǎng)度RPTB LOOPREADY: PORTR LSR,UART_STATUSBITF UART_STATUS,THREBC READY,NTC 。等待發(fā)送完成PORTW *AR0+,THRLOOP: NOPNOPST 01H,IER_ADDR 。打開(kāi)接受中斷PORTW IER_ADDR,IERSTM 0ffffh,IFRSTM IMR,AR0ORM 0007H,*AR0RSBX INTMsusp: NOPNOPB susp 。等待接收中斷_m: PSHM 08h 。接收中斷服務(wù)程序PSHM 09hPSHM 0ahPSHM ST0PORTR LSR,UART_STATUSBITF UART_STATUS,DRBC end_m,NTCPORTR RBR,REV_ADDR 。把接收到的字符再發(fā)送出去PORTW REV_ADDR,THRend_m:POPM ST0POPM 0AhPOPM 09hPOPM 08hRETE寧可累死在路上，也不能閑死在家里！寧可去碰壁，也不能面壁。是狼就要練好牙，是羊就要練好腿。什么是奮斗？奮斗就是每天很難，可一年一年卻越來(lái)越容易。不奮斗就是每天都很容易，可一年一年越來(lái)越難。能干的人，不在情緒上計(jì)較，只在做事上認(rèn)真；無(wú)能的人！不在做事上認(rèn)真，只在情緒上計(jì)較。拼一個(gè)春夏秋冬！贏一個(gè)無(wú)悔人生！早安！—————獻(xiàn)給所有努力的人.學(xué)習(xí)參
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