IC697MDL252
在完成了Verilog 代碼設(shè)計后，我們進行了仿真、綜合驗證，前仿用Modelsim、綜合用Synplify Pro、 綜合后仿真用Cadence 中的NC_Verilog，主要由于NC_Verilog 在后仿中的速度要優(yōu)于Modelsim，提高了效 率；圖5 是用NC_Verilog 仿真設(shè)備的枚舉過程；
任何USB 的數(shù)據(jù)傳輸都是建立在成功通過枚舉的基礎(chǔ)上的，只有正確完成了枚舉，USB 主機和設(shè)備之 間的通信才正在建立起來。所以枚舉是USB 通信的最關(guān)鍵的一步。在驗證過程中模擬了PC 主機向設(shè)備發(fā)送 各種命令來完成枚舉。在圖5 中pid［3:0］中D、3、9、2、1、B 分別表示Setup、DATA0、IN、Ack、Out、 DATA1。當(dāng)設(shè)備插上PC 時主機會持續(xù)的SE0 來復(fù)位設(shè)備，這時設(shè)備的地址默認為00，然后主機第一次發(fā)送 Setup 包來獲取設(shè)備的前8 個設(shè)備描述符，當(dāng)設(shè)備成功返回數(shù)據(jù)后，主機第二次發(fā)送Setup 包來給設(shè)備配 置地址，從圖中faddr［7:0］可以看出我們給設(shè)備配置的地址為02，在這以后主機都是通過這個地址向設(shè)備 獲取全部的18 個設(shè)備描述符和全部的配置描述符集，在取完這些描述符后主機對設(shè)備進行配置，主機就識 別出設(shè)備了。
IC697MDL252聯(lián)系人：李先生
手機：18030229050
電話：0592-5709821
傳真：0592-5709828
QQ 1878187406
郵箱 1878187406@qq.com
IC697MDL252FISHER PROVOX CL7661X1-BA1 MPU/MEM CL7661X1-A5 MPU P2.2
WESTINGHOUSE IQ DATA PLUS II WITH IPONI 2D78522
WESTINGHOUSE IQ DATA PLUS II WITH PONI 2D78522
GE CIRCUIT BREAKER 600 AMP SGHA36AT0600
NEW ROSS D3573A6152 3/4" PNEUMATIC VALVE 120 V COIL
NEW SYMAX 8030-RIM-144 BCD/GRAY CODE INPUT RIM144
NEW ORION VACUUM/PRESSURE ROTARY VANE DRY-PUMP CBS-15NE
CUTLER HAMMER MOTOR CIRCUIT PROTECTOR 400 AMP HMCP400
NEW GAST 1 HP REGENERATIVE BLOWER R4310A-2
NEW ALEMITE MEDIUM PRESSURE DRUM PUMP 331571-B5 5200PSI
SQUARE D OMEGAPAK AC DRIVE 8803 P00V04M 25 HP 480 VAC
SQUARE D TRANSFER SWITCH 400 AMP 8901NO400-3-208
SQUARE D 400 AMP MAIN LUG I-LINE PANELBOARD 600 VOLT
TELEMECANIQUE TSX-17 PLC LOGIC CONTROLLER TSX-172-3444
NEW STEARNS BRAKE ASSY. 108704100104 460 VAC 1 3/8 BORE
ALLEN BRADLEY 2706-E23J16B1 DATALINER W/ 2706-NE1 MOUNT
NEW GE 25 HP MOTOR H7893 284T 460 VOLT 1780 RPM
NEW GOULDS 10 HP STAINLESS PUMP 1-1/4X2-8 7ST21136T
NEW MOORE XTC FLANGED PRESSURE TRANSMITTER MODEL 340F
CREPACO 5 HP STAINLESS CENTRIFUGAL PUMP 1-1/4" X 1-3/4"
NEW YORK 1-1/2 HP FUME EXHAUSTER BLOWER SIZE L60 RFE
ALLEN BRADLEY COPROCESSOR MODULE 1785-05G
NEW LOWERATOR 38169243 MG1X1P RUBBER DOG 3-3/8" L
GE 20 HP AC ELECTRIC MOTOR FRAME 286T 1175 RPM REBUILT
TELEMECANIQUE SQUARE D AC VFD DRIVE ATV58HD16N4XZU
SQUARE D MAF36450 CIRCUIT BREAKER 450 AMP 3 POLE 600 V
MCQUAY CAREL MICROTECH 11 PCO2MQ3BL0 CHILLER CONTROL
ROSEMOUNT 1055 SOLU COMP II W/ PRESSURE SENSOR
INDRAMAT POWER SUPPLY TVM-1-2-50W0-115V W/ FACE PLATE
SQUARE D 500 AMP MAIN BREAKER I-LINE PANEL 120 / 208 V
NEW BRISTOL DUAL AIR CONDITIONING COMP. H25D84QDBEJ
NEW PEERLESS 7.5 HP CI CENTRIFUGAL PUMP 2" X 1" PE833
GUSHER CL1X1.5-6SEH-C CENTRIFUGAL PUMP CI 1.5" X 1" 5.5
TURCK BUS STOP CDN-IM-8-0002 DEVICENET 8 DISCRETE INPUT
TOSHIBA ELECTRIC MOTOR 50 HP 1760 RPM 326T FRAME TEFC
NEW GOULDS STAINLESS 5 HP PUMP 1.25 X 2 X 6 3450 RPM
NEW BLACKMER PUMP 1-1/4" NPT CRL1.25
NEW ACCU-SORT BAR CODE SCANNER WITH SOFTWARE MODEL 20
GOULD MODICON PROCESSOR MODULE PC-0984-480 AS-9508-000
GE SPECTRA SERIES 800 AMP CIRCUIT BREAKER SKPA36AT0800
NEW ROSEMOUNT PRESSURE TRANSMITTER 1151DR2F12B1 45 VDC
SQUARE D 250 AMP MAIN BREAKER 240 VOLT NQOD4 PANEL
NEW ABEX DENISON MID II7 23N HYDRAULIC PUMP
NEW PALL 2" STAINLESS STEEL CARTRIDGE FILTER 18FM03A-2I
CUTLER HAMMER 225 AMP MAIN BREAK PANEL 1 PHASE HFD3225
MARATHON 40 10 HP ELECTRIC MOTOR 326 T FR. TWO SPEED
NEW GUSHER CI 1" X 1.5" CENTRIFUGAL PUMP PCL SERIES
ROSEMOUNT TRANSMITTER 1151DP4E12S2 SENSOR 1199SSW22A11
NEW METTLER TOLEDO MO128 DISSOLVED OXYGEN METER
GREENLEE 1731 KNOCKOUT PUNCH DRIVER
GE FANUC CPU MODULE IC693CPU340G
BUDGIT 1/2 TON PNEUMATIC CHAIN HOIST 11588156 911693
NEW FMC LINK BELT GEAR SPEED REDUCER 750:1 RATIO
NEW RELIANCE ELECTRIC RECTIFIER STACK ASSY. 86466 87R
NEW BELL & GOSSETT 2 HP CENTRIFUGAL PUMP 2" 60 GPM
ENDRESS HAUSER PROMASS FLOW METER 33AT08 SN1ED13E21A
NEW AURORA PENTAIR TURBINE PUMP 14A114ABF 14A 114A BF
NEW US 25 HP ELECTRIC MOTOR 284T FR.180-1800 RPM
OMRON ETHERNET PLC MODULE UNIT CJ1W-ETN21 VERSION 1.4
SQUARE D 51 KVA TRANSFORMER 460- 460Y 265 LV 51T145HDIT
NEW BROWNING SHAFT MOUNT GEAR SPEED REDUCER 207SMT25
PARKER COMPUMOTOR PLUS CPHX106-220-S CPHX106-220
