DI814 3BUR001454R1

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摘要 介绍基于FPGA嵌入式系统的多通道高速数据采集模块控制器的IP核设计。采用TI公司的6通道同步采集A／D转换器件(ADS8364)，针对该器件使用硬件描述语言设计IP核，实现对采集数据的处理，同时设计了IP核与嵌入式系统的接口。在Xilinx公司的ISE开发工具中，利用FPGA器件中的硬 FIFO控制器辅助设计IP核，利用嵌入式开发工具EDK建立FPGA嵌入式系统，并添加和修改了用户自定义IP核，通过仿真验证了该方法的实效性。
关键词 FPGA 数据采集 ADS8364 IP核 FIFO

    随着可编程逻辑器件的不断进步和发展，FPGA在嵌入式系统中发挥着越来越重要的作用。本文介绍的在电能质量监测系统中信号采集模块控制器的IP核，是采用硬件描述语言来实现的。首先它是以ADS8364芯片为控制对象，结合实际电路，将6通道同步采样的16位数据存储到FIFO控制器。当FIFO控制器存储一个周期的数据后，产生一个中断信号，由PowerPC对其进行高速读取。这样能够减轻CPU的负担，不需要频繁地对6通道的采样数据进行读取，节省了CPU运算资源。

1 ADS8364芯片的原理与具体应用
    A／D转换芯片ADS8364是TI公司推出的专为高速同步数据采集系统设计的高速度、低功耗、6通道(三相电压、三相电流)同步采样的16位A／D转换芯片。采用模拟和数字分别供电，在模拟输入端，有模拟参考电压输入、输出引脚和信号六通道正反相输入引脚；在数字端，主要包括控制ADS8364的读／写、复位、片选引脚和转换结果输出总线。
    ADS8364芯片的转换过程为：当ADS8364的HOLDX保持至少20 ns的低电平时，转换开始。当转换结果被存入输出寄存器后，引脚EOC的输出将保持半个时钟周期的低电平，以提示数据分析处理器进行转换结果的接收，处理器通过置RD和CS为低电平可使数据通过并行输出总线读出。在转换数据的接收过程中，ADS8364芯片各引脚工作的时序达到协调*，才能保证监测设备良好工作，具体时序安排如图1所示。
 
 NEW ASCO NP8321A5E 125V-DC 1/4 IN NPT EXPLOSION PROOF S

ASCO 8220A21 RED HAT 5-125PSI 1/2 IN NPT SOLENOID VALVE

NEW ASCO 8345E011 120/110V-AC 1/4IN NPT RED-HAT SOLENOI

ASCO EF8342C1 RED HAT 110/120V-AC 1/4 IN NPT SOLENOID V

NEW NUMATICS 10JSPAD4-3 120V-AC 1-1/4 IN NPT SOLENOID V

NEW MAC 111B-501JB 24V-DC 1/8 IN NPT SOLENOID VALVE D43

NEW HUMPHREY H180-4E1-PSL 20-100PSI 24V-DC 1/8 IN NPT S

NEW ASCO 8210G002Q 120/110V-AC 1/2IN NPT 2-WAY SOLENOID

NEW SCHRADER BELLOWS N3555100153 INLINE 3/4IN 120V 1/2I

NEW MAC 224B-111JJ 120V-AC/24V-DC 1/8IN NPT SOLENOID VA

PARKER H1EBG323000CB HYDRAULIC 145PSI MAX 120V-AC SOL

MAC 6523B-511-PM-11?4DA 120V-AC 1-1/4 IN NPT DOUBLE SOLE

NEW PARKER AL11VXXBKH5300A 120/110V-AC SOLENOID VALVE D

VERSA VSG-4312-U-120V?60 175PSI THREADED 120V-AC 1/8IN N

NEW NUMATICS 082SS43AK000030 110-120V-AC 1/4IN NPT SOLE

NEW ASCO 8324 24 RED HAT 110/120V-AC 1/4 IN NPT SOLENOI

NEW MAC 82A-AF-000-TU-D?DAP-1DA 24V-DC SOLENOID VALVE D3

PARKER L7054910253 140 PSI K065903553 PILOT 110/120V-AC

PARKER L6854610253 VALVAIR II 140PSI 120V-AC 1/2 IN NPT

REXROTH GS30042-2626 CERAM 150PSI 120V-AC SOLENOID VALV

NEW MAC 250B-111JC 120V-AC SOLENOID VALVE D434614

NEW PARKER V5L72370 15PSI 11W WATTS NPT 120V-AC 1/8 IN 

PARKER H12BG323000CB 145PSI PNEUMATIC 120V-AC SOLENOI

NEW ALLENAIR 84VS 24V-DC 1/8 IN NPT SOLENOID VALVE D260

NEW MAC 713C-12-PI-111M?B 150PSI 120V-AC 1/4 IN SOLENOID

NEW ASCO JSF826G002 155PSI THREADED 120V-AC 1/8 IN NPT 

NEW MAC 55B-22-PE-RA11 150PSI THREADED 3/8 IN NPT SOLEN

NEW FESTO 6117 CM-5/2-1/2-CH 1/2 IN NPT SOLENOID VALVE 

NEW ASCO 8318D3 WITH BUILT-IN FLOW CONTROL 3-WAY 1/4 IN

HUMPHREY 501E1 3 10 21 36 30-125 PSI THREADED 120V-AC S

NEW FESTO NVF3-MOH-5/2-K-?1/4-EX 24V-DC 1/4 IN NPT SOLEN

MAC 821C-PM-111DA-1?43 THREADED 120V-AC 1/4 IN NPT SOLEN

ASCO 8320A188 110/120V-AC 1/4 IN NPT SOLENOID VALVE D45

NEW ASCO 8262B231E RED HAT 100PSI 120V-AC 1/4 IN NPT SO

NUMATICS 554SA43AK046T 150PSIG 120V-AC 1/2IN NPT MANIFO

NEW BURKERT 312-C-5/64-F-BR?-MAN SAFETY SHUT 120V-AC 1/8

JOHNSON CONTROLS V2410-8 3WAY 30PSI 24V-DC 1/8IN SOLENO

NEW WATTS S105-06M QUICK EXHAUST DUMP SOLENOID VALVE 24

NEW ASCO WPHC8262A282 RED-HAT TWO WAY 125V-DC 1/4 IN NP

NEW MAC 82A-AA-CKA-TM-D?DA5-2DA 24V-AC 1/4 IN NPT SOLENO

NEW ASCO EF8223G3 120V-AC 1/2 IN NPT EXPLOSION PROOF SO

NEW SMC SYJ314-5MZ-M5 24V-DC SOLENOID VALVE 3 PORT NC D

NEW FESTO GO0907572 STAINLESS THREADED 24V-DC 1/2 IN NP

NEW VERSA VSG-4302 SOLENOID VALVE 1/4 IN NPT 120V-AC D2

BURKERT 454057 MANIFOLD 140PSI 120V-AC 1/4 IN NPT SOLEN

NEW ASCO NP8321A5E 125V-DC 1/4 IN NPT EXPLOSION PROOF S

ASCO 8220A21 RED HAT 5-125PSI 1/2 IN NPT SOLENOID VALVE

NEW ASCO 8345E011 120/110V-AC 1/4IN NPT RED-HAT SOLENOI

ASCO EF8342C1 RED HAT 110/120V-AC 1/4 IN NPT SOLENOID V

NEW NUMATICS 10JSPAD4-3 120V-AC 1-1/4 IN NPT SOLENOID V

NEW MAC 111B-501JB 24V-DC 1/8 IN NPT SOLENOID VALVE D43

NEW HUMPHREY H180-4E1-PSL 20-100PSI 24V-DC 1/8 IN NPT S

NEW ASCO 8210G002Q 120/110V-AC 1/2IN NPT 2-WAY SOLENOID

NEW SCHRADER BELLOWS N3555100153 INLINE 3/4IN 120V 1/2I

NEW MAC 224B-111JJ 120V-AC/24V-DC 1/8IN NPT SOLENOID VA

PARKER H1EBG323000CB HYDRAULIC 145PSI MAX 120V-AC SOL

MAC 6523B-511-PM-11?4DA 120V-AC 1-1/4 IN NPT DOUBLE SOLE

NEW PARKER AL11VXXBKH5300A 120/110V-AC SOLENOID VALVE D

VERSA VSG-4312-U-120V?60 175PSI THREADED 120V-AC 1/8IN N

NEW NUMATICS 082SS43AK000030 110-120V-AC 1/4IN NPT SOLE

NEW MAC 56C-73-111CA 120V-AC 3/4X1/2IN NPT SOLENOID VAL

NEW DANFOSS EVI 3 032U6505 1/4 IN NPT SOLENOID VALVE D3

NEW ASCO 832426 RED-HAT 120V-AC 1/4 IN NPT SOLENOID VAL

NEW FESTO MFH-5/2-D-2-FR-?C 45-145PSI SOLENOID VALVE B20

NEW NUMATICS NAF25402N000P 110V-AC 1 IN NPT POPPET SOLE

NEW MAC 56C-13-611JD 24V-DC 1/2 IN NPT SOLENOID VALVE D

NEW NUMATICS S322C-04AE 120V-AC 1/2 IN NPT SOFT STARTER

NEW MAC 56C-32-611JC 150PSI 24V-DC 3/8X3/4 IN NPT SOLEN

NEW MAC 811C-PM-501JA-2?52 24V-DC 1/4IN NPT SOLENOID VAL

NEW NUMATICS 11SAD441O013T30 120V-AC 1/8IN NPT SOLENOID

NEW ALCO 231WB 08P04M AMC 120V-AC 1/2IN NPT SOLENOID VA

NEW NORGREN V60P517AA3000A 29-116PSI 110/120V-AC 1/8 IN

NUMATICS 082SS53CK000030 150PSI 100-115/110-120?V-AC SOL

PARKER 422CA021A83 35-150PSI 6.3W DUAL 120V-AC 3/8IN NP

NEW MAC 130B-501JC 6W 24V-DC SOLENOID VALVE D372104

MAC 6211C-211-PM-11?1DA 120V-AC 3/8 IN NPT SOLENOID VALV

PARKER 4530BHXXABBB53 6.2W WATTS 110/120V-AC SOLENOID V

NEW ASCO 8345E11 110/120V-AC 1/4 IN NPT SOLENOID VALVE 

NEW FESTO MEH-5/2-1/8-B 2.5-8 BAR 1.5W 24V-DC 1/8 IN NP

NEW NUMATICS L12XA452O053N30 120V-AC 1/4 IN NPT SOLENOI

NUMATICS 152SS63CK000030 150PSI .11A AMP 3/8 IN NPT SOL

NEW ASCO X B262C022 6W 115V-AC 1/4 IN NPT SOLENOID VALV

SCHRADER BELLOWS N1952600153 MINI KING 120V-AC 1/4 IN N

NEW HERION 8026572 24V-DC 1/2X3/4IN NPT SOLENOID VALVE 

NUMATICS 33DSA5410 PNEUMATIC 5 PORT 150 PSI 120V-AC 3/8

NEW NUMATICS NAF254504N000F 24V-DC 1 IN NPT 3-WAY SOLEN

NEW MAC 55B-12-PE-611JD 24V-DC 3/8 IN NPT SOLENOID VALV

NEW BURKERT 312-D-5/64-F-BR?-MAN MAX PSI 140 120V-AC SOL

NEW NUMATICS NG4BAN522N14A30 110V-AC 1/2 IN VACUUM POPP

NEW NORGREN SXE95731700023N?B W/ 54454-03 24V-DC SOLENOI

PARKER SSA40123701 7.2W 110-120V-AC 3/8 IN NPT SOLENOID

NEW MAC 6311D-000-PM-11?2DA 25-150PSI 110/120V-AC SOLENO

VERSA VSG-4532-M5R-P-?A120V60 40-175PSI 120V-AC 1/2IN NP

NEW NUMATICS S22C-04BELMN S32-44A 110-120V-AC 1/2IN NPT

NEW MAGNATROL 14L32YZ LIQ OXYGEN 120V-AC 1/2IN NPT SOLE

NEW ASCO EF8210G33 RED HAT 120V-AC 3/8 IN 2 WAY SOLENOI

NEW BOSCH REXROTH 0 820 022 602 48/24V-DC 1/8IN G1/8 SO

MAC 55B-11PI-112AA 120V-AC 1/4 IN NPT SOLENOID VALVE D4

NEW MAGNATROL E133A63 500PSI 120VAC 3/4IN NPT WATER SOL

ASCO EP 8025C89 AUTOMATIC SWITCH CO 120V-AC 1/2 IN NPT 

NEW MAC 82A-GA-000-TM-D?AAP-1DA VAC TO 150 PSI 120V-AC S

VERSA VSG-4532-G5R-U-?A120 FOUR WAY 2 POSITION 100/120V

MARTONAIR IP 65/IEC 144 M/1741/D/123 120V-AC 1/8 IN NPT

NEW MAC 82A-0A-BPA-00-0?003 BASE MANIFOLD SOLENOID VALVE

NEW NUMATICS 11SAD400O011Z30 120V-AC SOLENOID VALVE D21

NEW ASCO C8030B13VM 15PSI 120V-AC 3/8 IN NPT SOLENOID V

NEW ITT K10CB443 MAGNETIC 120V-AC 3/4IN NPT SOLENOID VA

NEW SMC VFS4400-5FZ 21-26V-DC SOLENOID VALVE D216000

NEW SMC NAV2000-N02-5DZ THREADED 21-26V-DC 1/4 IN NPT S

NEW SMC VQ4201R-5W 1/4 IN NPT SOLENOID VALVE D271757

NEW NUMATICS 11SAD421O000030 120V-AC SOLENOID VALVE D34

ASCO 8320G174MB 100PSI GAS OIL 17.1W 120V-AC 1/4 IN NPT

ASCO JKF8210G094 AIR/WATER-150PS?I THREADED 1/2 IN NPT S

NEW MAC PME-55 1BAAA THREADED 12V-DC 1/4 IN NPT SOLENOI

NEW PARKER 7321KBN4SN00N0C?111P3 150PSI 120V-AC 1/2 IN N

NEW BURKERT 00454057 0470 G 5/32 NBR PNEUMATIC 120V-AC

NEW PARKER V935LEP2075 120V-AC 1/4 IN NPT SOLENOID VALV

NEW NORGREN 375-02-081-61-5 24V-DC 3/8 IN NPT SOLENOID 

NEW ASCO 8300D61G RED-HAT 120V-AC 1/4 IN NPT SOLENOID V

NEW PARKER HYTORK CATS 3/4 X .35 110/120V-AC 1/8X1/4 IN

NEW ASCO 8210G13 REDHAT 120V-AC 3/4 IN NPT SOLENOID VAL

PARKER B753BB553A 4 WAY 3 POSITION 120V-AC 1/2 IN NPT S

SMC VQC2100N-5 PVQC2200N-5 VVQ2000 MANIFOLD SINGLE PLUG

NEW ASCO 8342G003 RED-HAT II 125PSI 120V-AC 3/8 IN NPT 

NEW MAGNATROL 18A24 25W WATT 50PSI BRONZE 120V-AC 1IN N

NUMATICS A13SS53AK000030 150PSIG 110-120V-AC 3/8 IN NPT

FESTO JMEH-5/2-1/8-B PNEUMATIC DUAL 24V-DC 1/8 IN NPT S

ASCO EF8342C1 RED HAT 110/120V-AC 1/4 IN NPT SOLENOID V

NEW PARKER L4653610253 PILOT 120V-AC 3/8 IN NPT SOLENOI

ROSS DM2CNA54A21 DM2 2-8 BAR 24V-DC 3/4 IN NPT SOLENOID

NEW HONEYWELL V935LEH2075AB6A?0Z SKINNER 120V-AC 1/4IN N

NEW SMC VXZ2240-04N-5TZ 24V-DC 1/2 IN NPT SOLENOID VALV

NEW HUMPHREY VA500AE1 3 10 0-29IN HG AIR 120V-AC 1/2 IN

NEW VERSA AKG-4252-BA-120?V60 40-175PSI 120V-AC SOLENOID

NORGREN 2636201 5/2 WAY 10BAR THREADED 120V-AC 1/4IN NP

NEW MAC 56C-73-111CA 120V-AC 3/4X1/2IN NPT SOLENOID VAL

NEW DANFOSS EVI 3 032U6505 1/4 IN NPT SOLENOID VALVE D3

NEW ASCO 832426 RED-HAT 120V-AC 1/4 IN NPT SOLENOID VAL

NEW FESTO MFH-5/2-D-2-FR-?C 45-145PSI SOLENOID VALVE B20

NEW NUMATICS NAF25402N000P 110V-AC 1 IN NPT POPPET SOLE

NEW MAC 56C-13-611JD 24V-DC 1/2 IN NPT SOLENOID VALVE D

NEW NUMATICS S322C-04AE 120V-AC 1/2 IN NPT SOFT STARTER

NEW MAC 56C-32-611JC 150PSI 24V-DC 3/8X3/4 IN NPT SOLEN

NEW MAC 811C-PM-501JA-2?52 24V-DC 1/4IN NPT SOLENOID VAL

NEW NUMATICS 11SAD441O013T30 120V-AC 1/8IN NPT SOLENOID

NEW ALCO 231WB 08P04M AMC 120V-AC 1/2IN NPT SOLENOID VA

NEW NORGREN V60P517AA3000A 29-116PSI 110/120V-AC 1/8 IN

NUMATICS 082SS53CK000030 150PSI 100-115/110-120?V-AC SOL

PARKER 422CA021A83 35-150PSI 6.3W DUAL 120V-AC 3/8IN NP

NEW MAC 130B-501JC 6W 24V-DC SOLENOID VALVE D372104

MAC 6211C-211-PM-11?1DA 120V-AC 3/8 IN NPT SOLENOID VALV

PARKER 4530BHXXABBB53 6.2W WATTS 110/120V-AC SOLENOID V

NEW ASCO 8345E11 110/120V-AC 1/4 IN NPT SOLENOID VALVE 

NEW FESTO MEH-5/2-1/8-B 2.5-8 BAR 1.5W 24V-DC 1/8 IN NP

NEW NUMATICS L12XA452O053N30 120V-AC 1/4 IN NPT SOLENOI

NUMATICS 152SS63CK000030 150PSI .11A AMP 3/8 IN NPT SOL

NEW NUMATICS S22C-03BELM QUICK EXHAUST SOFT START 3/8 I

NEW ASCO X B262C022 6W 115V-AC 1/4 IN NPT SOLENOID VALV

SCHRADER BELLOWS N1952600153 MINI KING 120V-AC 1/4 IN N

NEW HERION 8026572 24V-DC 1/2X3/4IN NPT SOLENOID VALVE 

NUMATICS 33DSA5410 PNEUMATIC 5 PORT 150 PSI 120V-AC 3/8

NEW NUMATICS NAF254504N000F 24V-DC 1 IN NPT 3-WAY SOLEN

NEW MAC 55B-12-PE-611JD 24V-DC 3/8 IN NPT SOLENOID VALV

NEW VERSA VSG-4522-M-A120 120V-AC 1/2 IN NPT SOLENOID V

NEW BURKERT 312-D-5/64-F-BR?-MAN MAX PSI 140 120V-AC SOL

NEW NUMATICS NG4BAN522N14A30 110V-AC 1/2 IN VACUUM POPP

NEW NORGREN SXE95731700023N?B W/ 54454-03 24V-DC SOLENOI

NEW MAC 56C-13-611JB 24V-DC 3/4 1/2 IN NPT SOLENOID VAL

NEW NUMATICS 081SA400K000030 150PSI 228-703B 120V-AC S

NEW ASCO 8353C030 3/4IN NPT SOLENOID VALVE D341977

WALTER PNEUMATIK SE 9304-908 2W 3-8BAR 24V-DC SOLENOID 

NEW MAGNATROL 33A53 23W 300 PSI BRONZE 120V-AC 3/4 IN N

SULLAIR 02250171-560 V8SM10 10 ODF HOT GAS 24V-DC 3/8 I

NEW PARKER 71215SN1EV00N0D?1D2C2 SKINNER 24V-DC 1/8 IN N

NUMATICS 091BA400M000061 MANIFOLD BLOCK 24V-DC 1/4 IN N

ASCO HB8262A153 RED HAT TWO WAY 45PSI 120V-AC 1/4 IN NP

ASCO EF8342C1 RED HAT 20W 110/120V-AC 1/4 IN NPT SOLENO

NEW IMPERIAL EV 10W 150PSI 115V-AC 1 IN NPT SOLENOID VA

NEW MAC 82A-AA-BLA-TM-D?AA1-1DA 120V-AC 3/8 IN NPT SOLEN

NORGREN SXE9573Z709013J?B SINGLE 24V-DC SOLENOID VALVE B