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ãƣ惦(ch)ģϵy(tng)ӿڷ_8051ݔݔӿЩ

l(f)r(sh)g:2020-02-16 Դ: ժ c(din)

ոڣ2006-09-27? ߺ(jin)飺飨1946-hˣhƼW(xu)ϷУϢ̌W(xu)Ժ? hƼW(xu)ϷУ Ϣ̌W(xu)Ժ h 430223?
ժҪĽBSST˾Compact Flash惦(ch)CF늚cӿָһ(g)8051ƬC(j)ϵy(tng)CFӿڽQoԔ(x)Ӳ·O(sh)Ӌ(j)ܛO(sh)Ӌ(j)Ҫc(din)?
P(gun)I~8051ƬC(j)ϵy(tng)CFӋ(j)C(j)ӿO(sh)Ӌ(j)?
ЈD̖(ho)TP305 īI(xin)(bio)R(sh)aA??

ǰ ?
SӼg(sh)Ѹٰl(f)չǶʽϵy(tng)Ĺ׃ԽԽ(qing)O(sh)Ӌ(j)Ќ(du)惦(ch)ҪҲS֮ԭеEEPROMȴ惦(ch)KB(j)Ĵ惦(ch)ѽ(jng)oMO(sh)Ӌ(j)Ҫ@һ£Compact Flash CardCFҊD1һ惦(ch)ٶȿ惦(ch)_(d)(sh)M(fi)B(sh)GBʹ惦(ch)͑(yng)\(yn)CFĽӿڷʽǞPCC(j)ӿO(sh)Ӌ(j)IDEʽҪچƬC(j)ϵy(tng)ʹCFҪچƬC(j)ϵy(tng)ģMIDEĹܡČӑՓ8051ϵy(tng)Ќ(sh)F(xin)CFӿڵĽQ?

D1 Compact Flash Card^ʾD?

һCFӿڵ늚?

SST˾CFķb252pв֮gg25milڷbڑ(yng)Õr(sh)ҪO(sh)Ӌ(j)SCHPCBbO(sh)Ӌ(j)PCBbr(sh)עxm׏ͺPС?yn)ᘵ_βLjAԺPֱ(yng)x_εČ(du)ǾL(zhng)ֱʹØ(bio)(zhn)CFӲtPCBϑ(yng)(yng)O(sh)Ӌ(j)mϵNƬb?

Ҫ_f?

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

x8λʽCE2(yng)ӹ̶ƽ1CE1ЧڲͬʽfܰCE1CE2քeķQCS0CS1?
ַA0A9CFMemoryʽ£HַA0A3xx˿ַԽӹ̶ƽ?
REGxnj(du)CFM(jn)B(ti)x߀xCFČԼĴREG1r(sh)x2ʾ?

Memoryʽ£(du)CFĿƺ͔(sh)(j)xͨ^(du)@ׂ(g)˿ڵx팍(sh)F(xin)?
RDY/BSYДCFǷ̎xæB(ti)ڇ(yn)֔(jn)Կڌ(du)CFM(jn)x֮ǰô_ДCFǷeڔ(sh)(j)x^Сrʹһӕr(sh)ɡ?

(sh)H(yng)·O(sh)Ӌ(j)?

D2oCFČ(sh)H(yng)·D96MBCFMemoryʽ8λ(sh)(j)ӿڵMCU89C52?

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

ġCFĴ惦(ch)?

CFȡӲPķ։K惦(ch)ʽ֞Cylinder^Headȅ^(q)Sector(du)96MBCF733(g)ÿ(g)8(g)^ÿ(g)^32(g)ȅ^(q)ÿ(g)ȅ^(q)512ֹ(ji)8λCFxһ(g)ȅ^(q)λxһ(g)ȅ^(q)֮ǰͳ(dng)ǰҪx^ȅ^(q)Ȼl(f)xһ(g)ȅ^(q)512(g)ֹ(ji)ҪһBm(x)x?
oһΌ(du)CFxC51Σ?
#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;һxһ(g)ȅ^(q)?
SecNo=sector;î(dng)ǰȅ^(q)?
CylLow=cylinder%255;λ?
CylHigh=cylinder/255;λ?
Command=0x30;ȅ^(q)?
delay1;ӕr(sh)1ms?
fori=1;i

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

c(din)x

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