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        ãƣ惦ģϵy(tng)ӿڷ_8051ݔݔӿЩ

        l(f)rg:2020-02-16 Դ: ժ c

        ոڣ2006-09-27? ߺ飺飨1946-hˣhƼW(xu)ϷУϢ̌W(xu)Ժ? hƼW(xu)ϷУ Ϣ̌W(xu)Ժ h 430223?
        ժҪĽBSST˾Compact Flash惦CF늚cӿָһ8051ƬC(j)ϵy(tng)CFӿڽQoԔ(x)Ӳ·O(sh)ӋܛO(sh)ӋҪc?
        P(gun)I~8051ƬC(j)ϵy(tng)CFӋC(j)ӿO(sh)Ӌ?
        ЈD̖TP305 īI(xin)(bio)RaA??

        ǰ ?
        SӼg(sh)Ѹٰl(f)չǶʽϵy(tng)Ĺ׃ԽԽ(qing)O(sh)ӋЌ惦ҪҲS֮ԭеEEPROMȴ惦KBĴ惦ѽ(jng)oMO(sh)ӋҪ@һCompact Flash CardCFҊD1һ惦ٶȿ惦_(d)(sh)M(fi)B(sh)GBʹ惦͑(yng)\(yn)CFĽӿڷʽǞPCC(j)ӿO(sh)ӋIDEʽҪچƬC(j)ϵy(tng)ʹCFҪچƬC(j)ϵy(tng)ģMIDEĹˣČӑՓ8051ϵy(tng)ЌF(xin)CFӿڵĽQ?

        D1 Compact Flash Card^ʾD?

        һCFӿڵ늚?

        SST˾CFķb252pв֮gg25milڷbڑ(yng)ÕrҪO(sh)ӋSCHPCBbO(sh)ӋPCBbrעxm׏ͺPСᘵ_βLjAΣԺPֱ(yng)x_εČǾLֱʹØ(bio)(zhn)CFӲtPCBϑ(yng)(yng)O(sh)ӋmϵNƬb?

        Ҫ_f?

        CFҪ_锵(sh)(j)D0D15ַA0A9Ƭx(sh)(j)xCE1CE2xƶOEWRĴxREGxæДRDY/BSYRESETȡ?
        (sh)(j)D0D15ڔ(sh)(j)xCFԹ16λ(sh)(j)ʽҲԹ8λʽxٶϵҪǺ܇(yn)r˷8λMCUĽӿһx8λ(sh)(j)ʽ?
        CE1CE2Ĺ1ʾ?

        x8λʽCE2(yng)ӹ̶ƽ1CE1ЧڲͬʽfУܰCE1CE2քeķQCS0CS1?
        ַA0A9CFMemoryʽ£HַA0A3xx˿ַԽӹ̶ƽ?
        REGxnjCFM(jn)B(ti)x߀xCFČԼĴREG1rx2ʾ?

        MemoryʽCFĿƺ͔(sh)(j)xͨ^@ׂ˿ڵx팍F(xin)?
        RDY/BSYДCFǷ̎xæB(ti)ڇ(yn)֔(jn)ԿڌCFM(jn)x֮ǰô_ДCFǷeڔ(sh)(j)x^Сr£ʹһӕrɡ?

        H(yng)·O(sh)Ӌ?

        D2oCFČH(yng)·D96MBCFMemoryʽ8λ(sh)(j)ӿڵMCU89C52?

        D2 CFH(yng)·?
        ƬC(j)(bio)(zhn)P2P0ڏ(f)÷ʽcCFӿCS0CS1REGքeӆƬC(j)P2?6P2?5P2?7˿xA3A0ӵ(jng)74LS373iĵ4λַCFx_քecƬC(j)x̖eõַ_ӹ̶ƽtϵy(tng)oCFĶ˿ڵַ顾B000B007?
        INTRQBSY/RDY_ӵƬC(j)P1.7?

        CFĴ惦?

        CFȡӲPķ։K惦ʽ֞Cylinder^Headȅ^(q)Sector96MBCF733ÿ8^ÿ^32ȅ^(q)ÿȅ^(q)512ֹ(ji)8λCFxһȅ^(q)λxһȅ^(q)֮ǰͳ(dng)ǰҪx^ȅ^(q)Ȼl(f)xһȅ^(q)512ֹ(ji)ҪһBm(x)x?
        oһΌCFxC51Σ?
        #define DataPort XBYTE\[0xB800\]?
        #define Feature XBYTE\[0xB801\]?
        #define SecCount XBYTE\[0xB802\]?
        #define SecNo XBYTE\[0xB803\]?
        #define CylLow XBYTE\[0xB804\]?
        #define CylHigh XBYTE\[0xB805\]?
        #define CardHead XBYTE\[0xB806\]?
        #define Command XBYTE\[0xB807\]xCF˿?

        CardHead=0xA0+head;î(dng)ǰ^?
        SecCount=0x01;һxһȅ^(q)?
        SecNo=sector;î(dng)ǰȅ^(q)?
        CylLow=cylinder%255;λ?
        CylHigh=cylinder/255;λ?
        Command=0x30;ȅ^(q)?
        delay1;ӕr1ms?
        fori=1;i

        P(gun)~ ӿ ãƣ惦ģϵy(tng)ӿڷ compactflash惦 compactflashx

        cx

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