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基于單片機的無線溫度傳輸系統(tǒng)-資料下載頁

2024-11-12 14:55本頁面

【導(dǎo)讀】隨著網(wǎng)絡(luò)和通信技術(shù)的高速發(fā)展,使人們對無線通信的需求越來越高。程、便捷、廉價的無線通信技術(shù)正成為關(guān)注的焦點。在傳統(tǒng)的測控系統(tǒng)中,通常。使用導(dǎo)線傳輸信號,這種傳輸方式常常會帶來電磁干擾和信號衰減。

  

【正文】 121314151617181920212223252627282930313224TRXCEPWRUPuPCLKVDD VssCD AMDRVSSMISOMOSISCKCSNXC1XC2VSSVDDVSSVDDPAANT1ANT2VSSIREFVSSVSSVSSVSSVSSVSSDVDDIV2TXENVDDnRF905U31C5 10NCR216MHZC816pFC9 16pFR331MHZC6 33pFC7 4.7pFC3 24pFC2 24pFY212MHZS12R21KXTAL1XTAL2RSTP3.7(RD)P3.6(WR)P3.2(INT0)P3.3(INT1)P1.0P1.1P1.2P1.3P1.4P1.5P1.6P1.7P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.7P2.0P2.1P2.2P2.3P2.4P2.5P2.6P2.7P3.1(TXD)P3.0(RXD)VCCEA/VPPALE/PROGP3.4(T0)P3.5(T1)GNDPSENU189C51C1 22μFR1200VCCR34.7KR44.7KA B Q0Q1Q2Q3Q4Q5Q6Q7CLKCLRVccGND74HC164ABQ0Q1Q2Q3Q4Q5Q6Q7CLKCLRVccGND74HC164ABQ0Q1Q2Q3Q4Q5Q6Q7CLKCLRVccGND74HC16474HC08+5VABQ0Q1Q2Q3Q4Q5Q6Q7CLKCLRVccGND74HC164ab fcgdeDPYdpgfedcbadpD1ab fcgdeDPYdpgfedcbadpD2ab fcgdeDPYdpgfedcbadpD31 K * 81 K * 81 K * 8+5V+5V+5V+5v+5vGNDDQVDDS18B204.7K*2+5VGNDDQVDDS18B20L2L1S1S21K*2+5VVDDC4 33pFVDDR1422KC9 27pFC1527pFC111.9pFC124.7pFC135.0pFC1633pFR3410KC103.3nF+5VVCCWP RSTVSSS1 S0SCKCS/WDIX5040VCC 21 附錄 2 程序清單 RESET: CLR MOV R7,32 LCALL DELAY 15 SETB MOV R74 LCALL DELAY15 CLR ; =0 JB ,RET1; =1 SETB ; MOV R7, 28 LCALL DELAY15 RET1: RET DELAY15: MOV R6,6 DEL151: DJNZ R6,DELI51 DJNZ R7,DELAY15 RET RD1820: CLR C MOV Rl, 9 MOV R0, TEMPLSB RD18201: MOV R2, 8 RD18202: SETB NOP CLR NOP SETB MOV R7, 1 LCALL DELAY15 MOVC RRC A DJNZ R2, RD18202 MOVX @R0,A。 INC R0 DJNZ R1。RD18201 RET WR1820: CLR C MOV Rl, 8 WR18201: CLR MOV R7, 1 LCALL DELAY 15 RRC A MOV , C MOY R7, 1 LCALL DELAY15 SETB NOP DJNZ R1, WR18201 SETB RET KEY: MOV A, 00H MOV SBUF, A KL0: JNB TI, KL0 CLR TI KL1: JNB , PK1 JB , KL1 PK1: ACALL D10MS JNB , PK2 JB , KL1 PK2: MOV R7, 08H MOV R6, 0FEH MOV R3, 00H PL5: MOV A, R6 MOV SUBF, A KL2: JNB TI, KL2 CLR TI JNB , PK4 JNB , PK5 22 MOV A, R6 RL A MOV R6, A INC R3 DJNZ R7, PL5 RET PK5: MOV R4, 08H AJMP PK3 PK4: MOV R4, 00H PK3: MOV A, 00H MOV SBUF, A KL3: JNB TI, KL3 CLR TI KL4: JNB , KL4 JNB , KL4 MOV A, R4 ADD A, 0AH SUBB A, 0AH JNC KL6 MOV DPTR, TABL ADD A, 0AH MOVC A, @A+DPTR MOV R0,60H MOV @R6,A INC R0 CJNE R0,60H,KD MOV 60H,58H SJMP KD1 KD: MOV 60H, R0 KD1: ACALL LED RET KL6: MOV B, 03H MUL AB MOV DPTR, KTAB JMP @A+DPTR KTAB: LJMP K1 LJMP K TABL: DB C0H, F9H, A4H, B0H DB 99H, 92H, 82H, F8H DB 80H, 90H LED: SETB MOV R7, 08H MOV R0, 58H LED1: MOV A, @R0 MOV SBUF,A LED2: JNB TI,LED2 CLR TI INC 60 DJNZ R7,LED1 CLR P RET ORG 0000H AIMP MAIN LJMP TOP MAIN: MOV SP,60H MOV PSW ,00H MOV SCON,00H MOV IE,00H MOV IP,00H MOV TMOD,00H LCALL DOG DOG: MOV TH0, 0B1H MOV TL0, 0E0H SETB TR0 RET TOP: POP ACC POP ACC CLR A PUSH ACC PUSH AVV RETI 23
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