1、31D1-D51/RAM涨008RAM3131RAM SCLKDS1302,0,8SCLKDS1302,07,3.7 3.7 5. DS1302 DS130212,7,BCD3-3 ,DS1302RAMDS1302RAM,RAM,31,8,COHFDH,;RAM,RAM31,FEHFFH 3-3 DS1302 7 6 5 4 3 2 1 0 80H 81H 00-59 CH 10SEC SEC 82H 83H 00-59 0 10MIN MIN 84H 85H 01-12 00-23 12/24 0 10 AP HR HR 86H 87H 01-28,29 30,31 0 0 10DATE D
2、ATE 88H 89H 01-12 0 0 0 10M MONTH 8AH 8BH 01-07 0 0 0 0 0 DAY 8CH 8DH 00-99 10 YEAR YEAR D71DS1302100nA0 D71224122412D5AM/PMD5PM24D5 D770RAMD70D7 DS1302TCSD7-D4D7-D41010硣DSD3-D2VCC2VCC1DS01102DS0011TCSRSD1-D0VCC2VCC1裬RS00RS012KRS104KRS118KRS趨00TCS 5.0VCC2,VCC1,VCC2VCC12K, Imax=(5.0V-0.7V)/2K=2.2mA /
3、8/00/8/ DS13023.8 3.8 DS1302 DS1302SCLKDIORST1P2.3P2.4P2.5X1X232.768KHzVCC2+5VVCC1DS1302+3.6V DS1302 3.3.2 24C16 24C1616KCMOS E2PROM20488CATALYSTCMOS24C1616I2C 1 1400KHzI2C 21.86.0 3CMOS 4WP 5 6 71,000,000 / 8100 9DIP SOIC TSSOP 10 2 3.9 3.9 24C16 3 3-4 3-4 24C16 SCL SDA /SDA 缫wire-OR A0 A1 A2 0 24C
4、16 1A0A1A2Vss WP WPVccWPVss / 4I2C飺 I2C鶨 1 2仯 I2C I2C 5 3.10 3.10 24C16 6 3.3.5 3.11 24C56 724C16 24C163.12 3.12 24C16 a8a9a10洢 3.4 KM1鹤3.13 3.13 1,274LS08KG1P34P3418550硣4001D1KM1R7R8KA1KA2P341 3.5 816 3.5.1 I/O8I/O3CPLD/FPGAI/O 3.5.2 8I/OI/O 8I/O4I/O443 3.5.3 3.14 I/O 74LS245led豸874LS245 8051P0P074
5、LS245 /CEDIR=0BA; DIR=1 A BCEAB3.14 3.6 豸 3 1 2 3豸 AT89S52RS232RS232TTLMAX232 3.15MAX2321234564+12v-12vRS-232789101112131413R1IN12R1OUT11T1IN14T1OUT8R2IN9R2OUT10T2IN7T2OUTTTL/CMOST1INT2INRS-232T1OUTT2OUTDB9DB9RS-232R1INR2INTTL/CMOSR1OUTR2OUT硣15GND16VCC+5V 3.16MAX232RS232MAX2321112TXDRXD1314RS232TXDR
6、XDRS232 3.15 3.16 MAX232 4.1 裬CPU书 黮顣 4.2 4.2.1 仯 4.2.2 24C16AAH趨24C16洢DS1302巽 4.2.3 4.1 N Y 4.1 4.3 4.3.1 COM8,1,1(10),=9600BIT/S9600,n,8,13 #,#,(23H,23H,23H),0DH(13) 1 :#,#,#,17(ASCII) 17(ASCII):S,Z,:20125 20#SZ2012050207203000 2趨 : #,#,#,11(ASCII) 11(ASCII):G,K,1,00:00 24:00:#GK100002400京00:0024:
7、00 41234#GK1 3 : #,#,#,2(ASCII) 2(ASCII)C,S#CS#CS20120520800000020120520080000 4 : #,#,#,3(ASCII) 3(ASCII)C,D磺#CD11#DS106002000106:0020:00 5 : #,#,#,2(ASCII) 2(ASCII)D,O#DO#DO10001DO/10414104123 4.3.2 3S2S3S4 S2S3S4S284-1 4-1 S2 0 1 2 3 4 5 6 7 4.3.3 趨 4-2 S2 0 11 12 13 14 21 22 23 24 31 32 33 34 41 42 43 44 3S2-2S3-S4- S2S3S4S2174-2 趨 壬 5.1 1磺 2飬 3 4飬 5 壬4AT89S52DS1302 壬麸 5.2 5.2.1 衢 12232麸麸 5.2.2 嵽棬硣飬P2.2DS1302DS1302 5.2.3 趨P2_2DS1302DS1302磬9013缫跢İ 5.3 5.3.1 CPUMCS51MCS96Microchip PICCPU棬Make Build ASM()PLMC 5.3.2 1 V5/S POD-H8X5X,MCS5140DIP嵽CPU 2 1NONAME1 2 .CC 3裺
