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һNCPLD ĆƬC(j)cPCI ӿO(sh)Ӌ(j)Q

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      ժҪ:

ِ`˼˾XC95216 ϵCPLD оƬ(sh)F(xin)U(ku)չƬC(j)cӋ(j)C(j)PC104 Ľӿڲͨŵķ, QǶʽϵy(tng)ІƬC(j)cC(j)O(sh)򽻵YԴĹȱ, ̫W(wng)ĹܼһƬXC95216 CPLD , (jin)Ӳ, ͨŌ(sh)r(sh)ԏ(qing); oVHDL ҪԴԓڌ(sh)`Йz(yn)ͨ^

8λƬC(j)Ƕʽϵy(tng)Б(yng)ÏV, Ȼ׌ֱcPCI O(sh)򽻵sȱ8 λƬC(j)ֻ16 λַ, 8 λ(sh)(j)˿, PCI 2.0 Ҏ(gu), 32 λַ(sh)(j)(f)AD[3- 0], ߀ FRAMEIRDYTRDY Ҫ̖(ho)׌ƬC(j)޵I/O ˿ځֱӿ˱̖(ho)DzܵġһNеķCPLD ͨƬC(j) cPCI O(sh)gĘ, CPLD I/O YԴSÑԶ߉݋ă(yu)(sh), ƬC(j)c PCI O(sh)gͨ΄(w)

1.2 CPLD O(sh)Ӌ(j)Ҏ(gu)

ڌ(du)ƬC(j)CPLD ̎ϵy(tng)ɱĿ], Ҏ(gu)֧PCI ľͻݔ?sh)ҪBm(x)ׂ(g)(sh)(j)ڵxʽ, H֧һ(g)ַڼһ(g)(sh)(j)ڵxʽ(du)ڴ󲿷֑(yng)ö, @Nʽѽ(jng)D1 ǽ(jng)^(jin)PCI xr(sh)CPLD (ni)O(sh)13 (g)8 λĴÁM(jn)һPCI xr(sh)ҪĔ(sh)(j), pci_address0- pci_address3 xr(sh)ĵַ(sh)(j); pcidatas0- pci_datas3 ҪPCI O(sh)䌑Ĕ(sh)(j); pci_cbe[3- 0]ַڕr(sh)Ŀ; pci_cbe[7- 4] 攵(sh)(j)ڕr(sh)ֹ(ji)ʹ; pci_data0- pci_data3 PCI O(sh)䷵صĔ(sh)(j); pci_request PCI xB(ti)Ĵ, ƬC(j)һЩϢ(dng)ƬC(j)pci_cbe Ĵһ(g)ֹ(ji)ĕr(sh), (hu)(f)λCPLD еĠB(ti)C(j), |l(f)CPLD M(jn)PCI x; ƬC(j)tͨ^ԃpci_request Ĵ֪x, ُpci_data ĴxPCI O(sh)䷵صĔ(sh)(j)

2.2 ƬC(j)PCI xC ZԳO(sh)Ӌ(j)

CPLD ڎ, ƬC(j)xPCI O(sh)׃ஔ(dng)(jin), pci_cbe ȼĴ•ⲿ惦(ch)׃, (j)CPLD O(sh)Ӌ(j)ַָȻ, fm(dng)?sh)ą?sh)oƒɂ(g)xӺ(sh), Ɍ(du)PCI O(sh)ÿgI/O g惦(ch)gx PCI O(sh)ķ?ci)?sh)(j)ȫ׃savedata (sh)HڌPCI O(sh)r(sh), Ҳԏpci_data еõ?ci)?sh)(j)@(g)(sh)(j)횵PCI O(sh)䌑Ĕ(sh)(j)@һc(din)M(jn)вe(cu)z(yn)͹Д, ҕw(yng)ö

3 Y(ji)Փ
CPLD (sh)F(xin)ƬC(j)cPCI ӿڵIJͨ, ·Y(ji)(gu)(jin)weС, 1 ƬCPLD оƬ, ҿƷ, (sh)r(sh)ԏ(qing), ͨЧʸO(sh)Ӌ(j)ѳɹؑ(yng)_l(f)ĸN(sh)(j)ɼϵy(tng), ƬC(j)cPC104 ֮gIJД(sh)(j)ͨ, Чdz

dֻfϢվ^c(din)C(sh)ϢHD(zhun)dՈ(qng)ע̎




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ƪһNCPLD ĆƬC(j)cPCI ӿO(sh)Ӌ(j)Q늚ُW(wng)(ُW(wng))ИI(y)„
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