XC2VP20-5FGG676I在FPGA內部建立RAM，按照一定時序降RAM內的緩存數據映射到VGA顯示屏上。硬件設計信號調理電路模塊信號調理電路模塊，對輸入的模擬信號進行處理，由于輸入電壓幅度為-2.5，2.V之間，而后一級的AD模塊采用了12位的高速A／D轉換芯片ADS80只能對0～V的電壓進行模／數轉換。故需要將輸入電壓先抬升為0～V。
S9S12XS128J1MAE
S9S12XS256J0MAL
MC6850P
AD8397ARDZ
TPS76033DBVR
CR5CM-8L
CR5CM-10L
CR5CM-12L
SF3G42
SF3G42
MAX1168BEEG+
MAX1165AEUI
MAX1167BEEE
MAX1167BCEE
MAX1165BCUI
MAX1166BCUP+
MAX1169BEUD+
MAX1166BEUP+
MAX1168BCEG+
IRF7450PBF
DS1230Y-120IND
DS1230Y-120IND+
DS1230AB-120IND+
TPIC6B595DW
TC1240ECHTR
74LS107
TMP300BIDCKT
BCR5CM
BCR5CM-8L
XC9536VQ44AK
XC95144-15PQ160C
DG528AZ
DG528AZ/883
AD8240YRM
AD8240YRMZ
FIN1027MX
HD74LS91P
基于FPGA的軟件設計FPGA的硬件主要包括：觸發電路模塊、數字信號發生模塊、存儲模塊、鍵盤模塊、VGA顯示模塊等5個部分，軟件流程圖如圖2所示。觸發電路程序AD采樣啟動后，將從AD進來的數據與觸發字進行比較。當滿足設定條件時，會產生觸發信號，此信號送到RAM控制器端。通過對外部觸發電路發出觸發信號與內部的兩路數字信號進行觸發的選擇后。
HD74LS26P
HD74LS175
HD74LS20P
HD74LS490P
HD74LS161AP
BQ4015YMA-70
BCR20KM-12L
EVAL-ADOPAMP-1CP
EVAL-ADOPAMP-2RJ
F5LZ47A
AVS24CB
P1553AA
P1553ACL
P1553ACL
P1553AAL
P1553ABL
P1553ACL
P1553AAL
P1553ACMC
P1553ACMCL
S6025N
AD7874AN
AD7874ANZ
AD7545AKPZ
S593
ADG3257BRQ
ADG3257BRQZ
DTF25A60
74LVC1G125GV
DAC7715U
DAC7715UB
DAC7715UBG4
DAC7714UBG4
DAC7718SRGZT
TD80C31BH
可以看出，結繩法的關鍵是將信號結繩以后，使其保持足夠長的，以便另一個時鐘可以正確采樣。圖5描述了結繩法的具體實現，主要包括3個基本單元：Pluse2Toggle、Synchronizer和Toggle2Pluse。Pluse2Toggle模塊負責將兩個脈沖信號結繩，即將單脈沖信號延長；Synchronizer模塊用雙鎖存器法將得到的信號過渡到另一個時鐘域。
PGA205BU
PGA205BPG4
PGA205APG4
018ENA1ZPH
018EZ5MZPH
BCR10PM
BCR10PM-8L
BCR10PM-14L
BCR10PM-10L
BCR10PM-12L
BCR10PM-16L
5P4M
A2F200M3F-1FGG256
3DG122C
DAC8574IPW
Q8012NH5
MPC857DSLVR50B
TS820800
TS81102G0CTP
TS81102G0VTP
2N6071A
Q4055R
DCP012415DBP
TPS54310PWP
AD5516ABCZ-3
AD5516ABC-3
TPS5430DDA
TPS54316PWP
TPS54310PWP
TPS54312PWP
TPS54352PWP
TPS5430DDAR
TPS54352PWPR
TPS54327DDAR
TPS5430QDDARQ1
EL7534IY
AD5175BCPZ
74HC04D
AD7825BR
AD7825BRZ
AD9215BCPZ-105
CR8KM-8L
CR8KM-14L
CR8KM-10L
CR8KM-12L
CR8KM-16L
ADP3421JRU
ADP3421JRU-REEL7
MAX547AEQH
MAX547AEQH+D
AS1747BTDT
2N5551-Y
AD7690BRMZ
AD7688BRMZ
MAX5742AUB+
DS1390U-33+
ADS8320EB/250
ADS8326IBDGKT
ADS8325IBDGKT
AD9786BSV
AD9786BSVZ
Q2012LH5
AD8036AN
AD8036AR
AD8036ANZ
AD8032ARZ
AD8036ARZ
AD8039ARTZ-REEL7
MCR25LNG
STI5518BQC
STI5518DQC
STI5518DVC
AD5542ACPZ-R7
LTC1821BIGW
LTC1821-1ACGW
LTC1821-1BIGW
LTC1821-1AIGW
LTC1821BIGW#PBF
LTC1821-1BIGW#PBF
LTC1821-1ACGW#PBF
LTC1821-1AIGW#PBF
AFE8406IZDQ
AFE5801IRGCT
AFE5801IRGCR
ADG3300BRUZ
LTC2978IUP
LTC2978IUP#PBF
CR8CM-8L
CR8CM-10L
CR8CM-12L
CR8CM
LP2981AIM5-3.8
AD8362ARUZ
LM4766TF
AD9850BRS
AD9850BRSZ
AD71056AR
PTN36043BXY
CY7C0831AV-133AI
CY7C0851AV-133AXI
ADS5281IPFP
ADS5281IPFPR
SM12G42
SM12G41
SM12G45
SM12G45A
SM12G42A
SM12G41A
Q7025K6
IN4737A
MAX174ACPI+
MAX174BCPI+
MAX174AEWI+
MAX174CCPI
MAX174AEWI
MAX174BCPI
MAX174CCPI+
MAX174BEPI+
MAX1748EUE+
MAX17480GTL+T
S2010DS3
DRB3C-A
MC1456G
M12JZ47
M12JZ47A
TPS54010PWP
DS1270W-150#
DS1270AB-70#
DS1270AB-100#
CR12PM
CR12PM-8L
CR12PM-12L
CR12PM-16L
AD7674ACPZ
AD7674ACP
MCR8SD
MCR8SD
MAX1320ECM+
MAX1325ECM+
MAX1324ECM+
MAX1322ECM+
AD5546CRUZ
AD5546BRUZ
MAX132CWG
MAX132EWG
MAX132CWG+
MAX1322ECM
MAX1324ECM
MAX1321ECM
SCR214G
BCR8DM-8L
BCR8DM-8H
MC6821L2
MC68B50CP
MC68HC16Z1CEH25
MC68HC16Z1CAG25
MC68HC908LB8CDWE
S8055N
Q6030LH5
Q4004F31
Q4004F41
MC33696FJE
AD9981KSTZ-95
BT138Y-800E
BT138Y-600E
BT134-600
BT134-500
BT134-800
BT134-600E
BT134-800F
BT134-500E
BT134-800G
BT134-600G
BT134-500F
BT134-500G
SK012D
AD6630AR
AD6630ARZ
LPC2478FBD208
ADS8330IPW
ADS8330IBPW
ADS8330IBRSAR
ADS8330IBRSAT
THS4502ID
THS4501ID
THS4502IDR
X0405MF
X0405ME
AD4020BRMZ
ST-L1012T
CYWUSB6935-48LFI
CYWUSB6935-48LFXI
