LM201 巴赫曼
厦门莫格电气自动化有限公司
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以太网模块,运动控制模块,模拟量输入模块,模拟量输出模块,数字输入模块,数字输出
模块,冗余模块,电源模块,继电器输出模块,继电器输入模块,处理器模块,
本文将介绍三个常见的ARM SoC,包含ARM7和ARM9,并试着分析与比较它们的性能。
ARM7族群
低耗电量和低成本是ARM7的优点。不过,ARM7的zui大执行速率不到100 MHz,因此,在应用上,它和8051之类的微控制器(MCU)类似,但在功能上,ARM7通常优于MCU。
由于一般的MCU都是8-bit,而且不支持操作系统(O.S.),所以使用MCU开发应用产品的成本通常会比使用ARM7来得便宜。然而,就简单的应用而言,ARM7也可以不需要操作系统,只使用纯粹的韧体,照样可以达到和MCU一样或优于MCU的效能。
TI的TMS470
它的CPU核心是ARM7TDMI,16/32-bit RISC。其正常模式的系统时脉是28 MHz、管线模式是48 MHz。内含128K Bytes的FLASH和8K Bytes的SRAM。其它电路单元还包含:
零脚位锁相回路(ZPLL)时脉模块。
模拟的看门狗定时器(analog watchdog timer;AWLM201 巴赫曼D)。
实时中断模块(real-time interrupt;RTI)。
两个”序列外围接口”(SPI)模块。
两个”序列通讯接口”(SCI)模块。
标准的”控制局域网络”(control area network;CAN)控制器(SCC)。
第二类序列界面(C2SIa)。
10-bit、16个输入信道多重缓冲”模拟数字转换器”(MibADC)。
高阶定时器(high-end timer;HET),控制16个输出入端口(I/O)。
外部时脉预分频器(external clock prescale;ECP)。
共49个I/O脚位,1个只能输入的脚位。
TMS470的系统功能有:
地址译码。
保护内存。
监督内存和各外围的总线。
重置(reset)和取消(abort)的例外管理。
所有内部中断源的排序(prioritization)。
装置的时脉控制。
平行的特性记号(signature)分析(PSA):是一种自动检测故障的功能,可以利用多个输入的特性记号来检测数据流。这个特性记号可以用来判定处理器是处于好的或坏的状态。
上述的ZPLL、HET、MibADC是TMS470的特殊功能。ZPLL包含了一个PLL、一个时脉监督(clock-monitor)电路、一个时脉致能(clock-enable)电路和一个预分频器(预分频值是从1~8)。ZPLL的功能是将外部的参考电压乘以预分频值,以获得较高的频率,供给TMS470内部使用。ZPLL提供ACLK给TMS470的系统模块,之后,系统模块会产生系统时脉(SYSCLK)、实时中断时脉(RTICLK)、CPU时脉(MCLK)、外围接口时脉(ICLK)。所谓”零脚位”是指ZPLL没有提供外部滤波器的接脚,亦即不需要连接外部滤波器的意思。
许多不熟悉TI芯片的硬件工程师,经常不知道要如何将石英振荡器(crystal oscillator)或外部的时脉信号连接到TI芯片上。其实,TMS470内部已经具有一个振荡器电路(在ZPLL内),但若要启动它,外部需要连接一个4MHz~20 MHz的石英或谐振器(resonator),并且要在OSCIN和OSCOUT脚位之间连接负载电容,如图2(a)所示。这个负载电容的大小应该由石英振荡器的供货商提供,如果施予不正确的载电容值,可能无法使TMS470正常开机和工作。
此外,如果不使用TMS470内部的振荡器,而改用外部的参考时脉或外部的振荡器输出信号,此时要将1.8V的时脉信号连接到OSCIN脚位,并将OSCOUT脚位保持开路的状态,如附图2(b)所示。当然,不同厂牌的芯片的时脉来源之连接方式不尽相同,硬件工程师事先应仔细查阅它们的技术手册。
HET是一种*的智能型定时器,它为实时的应用提供精确的计时功能。此定时器是由软件控制的,使用精简的指令集、特殊的微电路架构、I/O端口。它可以应用于数据比较、采集,或当成GPIO,尤其适用于对多个传感器(sensor)的输入数据做比较,或输出复杂的和精确的时间脉冲(如:PWM脉冲)来驱动起动器(actuator)。
HET的周边具有”XOR—分享”的功能,此功能可以让两相邻的HET通道被XOR在一起,和HET的标准输出脉冲相比,这能够输出更小的脉冲信号。
为了让使用者可以为FLASH、RAM、HET RAM寻址,TMS470有提供“内存选择”(memory selection)的功能。每一个“内存选择”具有它自己的“内存基本地址缓存器(memory base address register)”—MFBAHRx和MFBALRx(分别是高位和低位元),用来定义各个内存区块的起始(基本)地址、区块大小和保护方式。每一个“内存选择”的基本地址是透过缓存器来设定的,它们应该要符合附图3中的映像地址之边界值—必须是区块大小的整数倍。图4是TMS470的“内存选择”的分配情形。
MibADC接受一个模拟信号,并将它转换成一个10-bit的数字信号。MibADC具有两个模式:相容vs.缓冲模式。在兼容模式中,TMS470的“程序模型”(programmer‘s model)和TMS470的ADC模块兼容,而且MibADC的数字输出是储存在“数字输出缓存器”(digital result register)中;“程序模型”包含:缓存器、寻址模式(addressing mode)和中断。兼容模式能让ADC的程序设计工作变得比较容易,因为只要直接读取数字输出缓存器即可取得转换后的数字数据。在缓冲模式中,数字元输出缓存器被3个FIFO缓冲存储器取代—分别表示不同的转换群组(事件、群组1、群组2)。在兼容模式中,MibADC的FIFO是被“中断服务例程(ISR)”读取。
SMC CD85N25-380-B ISO Cylinder Pneumatic Actuator Ram 25 Bore 380 Stroke
SMC CDA1BN40-300-B5?4Z Cylinder Pneumatic Actuator Ram 40 Bore 300 Stroke
SMC CDA1BN50-200 Cylinder Pneumatic Actuator Ram 50 Bore 200 Stroke
SMC CDA1DN40-330 Cylinder Pneumatic Actuator Ram 40 Bore 320 Stroke
SMC CDA1DN40-400 Cylinder Pneumatic Actuator Ram 40 Bore 400 Stroke
SMC CDA1DN40-400 Cylinder Pneumatic Actuator Ram 40 Bore 400 Stroke
SMC CDA1FN40-100 air Cylinder pnuematic actuator ram 40 Bore 100 Stroke
BURKERT 00130176 1" CL 150 316L SS angle seat globe valve & 2000A Actuator
Bolt on Pneumatic Positioning Pusher
Zimmermann ingersol rand air balancers 500lb at 100psi tool material handling
Williams P125X125 CRTC CHEMICAL INJECTION PUMP cw Oscillamatic MK2 controller
CKD JSC3-G1-CB-63B 350-XP5 Locking pneumatic cylinder ram 63mm bore 350mm stroke
Pneumatic valve manifold 2 x SMC SY5140-5DZ single acting 24V +damaged double ac
Pneumatic valve manifold 3 x SMC SY5240-5DZ double acting 24V
SMC set of 1x VZ5240 4x VZ5140 Pneumatic Valve Manifolds
ACE controls MAA 64150 industrial shock absorber
Bray Control pneumatic valve actuator 92-1270-11300-5?32
SMC C95KDL32-200
Lohse 200mm bore pneumatic valve actuator type 03.200.05 Suite Knife gate valve
Ingersol Rand Aro 3" Pneumatic double diaphragm pump PD30A-BAP-GG
Trimod Besta 5PV 01 04 level magnetic pneumatic float liquid level control valve
IST Blagdon B2504AAWENNS double diaphragm pump
Burkert DN 13 1/2" Cl 150 PN25 SS globe valve & Burkert 2000A Pneumatic Actuator
Pneumatic concrete vibrator tamping tool
SMC Pneumatic Solenoid Valve Manifold 7x VFR3510
Ingersol rand DAA40N 586 assembly tool pneumatic nut runner
SMC Pneumatic Valve Manifold with 13x VFS2100-5F2
SMC Pneumatic Cylinder MGPM25-125
SMC 80mm bore long stroke 1550mm pneumatic air ram oxy damage to thread
JORDAN VALVE 707SP 2.5 inch Sliding Gate Control valve with MK 17 Positioner
Pneumatic sequencing box with Parker timers
GAST Air Motor & Gearbox 4AM-RV-75-0R20
KEYSTONE Massive Pneumatic ram cylinder Actuator for large pinch valve or press
KEYSTONE Pneumatic ram cylinder Actuator for large pinch valve or press (F02B)
KEYSTONE Large Pneumatic ram cylinder Valve Actuator for pinch valve or press 3
BRAY CONTROLS DN600 BCD 747mm Teflon seat and disk butterfly valve HOU 0038 TX
SMC CDQ 2B 63-35 DM Pneumatic cylinder/ air ram
Vacuum transfer jig w Festo DNU 32-200 Pneumatic cylind
SMC CDA 1DN 63-125Pneumatic cylinder/ air ram
SMC CDA 1DN 63-100 Pneumatic cylinder/ air ram
FPL FLOTRONIC double diaphragm PUMP 3" stainless flanged teflon
Perspex Machine guard slides pneumatic actuation 1100 x 1500
Pneumatic control box multiple valves and regulators
SMC CDA2D80-650 Cylinder Pneumatic Actuator Ram 80 Bore 650 Stroke
SMC CDA2D80-745 Cylinder Pneumatic Actuator Ram 80 Bore 745 Stroke
SMC CG1LN80-900 Cylinder Pneumatic Actuator Ram 80 Bore 900 Stroke
SMC CLATN100-700-D Fine Lock Cylinder Pnuematic Actuator Ram 100 Bore 700Stroke
SMC MGPL25-50 Compact Slide Guide 25 Bore 50 Stroke
2 x SMC MGPM12-20 Cylinder Pneumatic Actuator Ram 12 Bore 20 Stroke cw brackets
SMC MY1B40G-550 Rodless Cylinder Pnuematic Actuator Ram 40 Bore 550 Stroke
SMC MY1C25G-600 Rodless Cylinder Pnuematic Actuator Ram 25 Bore 600 Stroke
SMC C95SDB Cylinder Pnuematic Actuator Ram trunion mount 63 Bore 50 Stroke
SMC SY7240-5DZ 5way set of Valve Manifolds
Pnuematic Valve Manifold 6 way block 4 x SMC SY7240-5DZ double acting 24V
Taiyo Pneumatic TAM4-015 type LG030 Air Motor and reduction gearbox
Taiyo Parker TC63B65-BB-X Air Cylinder Actuator Ram 63 Bore 65 Stroke 10A-6
Tyre Lifter 3 Rams and 3 sets of linear bearings
Vickers Hydraulic Cylinder Pneumatic Actuator Ram 50.8 Bore 137 Stroke
3” aluminium Sandpiper S30 double diaphragm pump, Buna diaphragms Teflon balls
2” aluminium Sandpiper S20 double diaphragm pump Buna diaphragms
keystone K-NIFE F952 stainless 100mm 4" pneumatically actuated knife gate valve
Orbinox CF8M stainless150 pound 3" inch pneumatically actuated knife gate valve
LINC YZ 84T-11-41-4 CHEMICAL INJECTION PUMP 6370 PSI
Norbro 40R pneumatic valve actuator 33-RDC40-1SD1EO?-D or 33-RDB40-1SD1EO?-D
Norbro 40R pneumatic valve actuator 35-RDC40-1SD1EO?-D or 35-RDB40-1SD1EO?-D
Outokumpu Wenmecoy sintered brass filter element 50mm diameter pack of 2
Pneumatic control box Allen Bradley Micrologix PLC valve manifolds Rittal enclos
Champion Sullar Dominator Package Screw Compressor & Dryer. Series 81207
1” flanged Poly propylene Wilden double Teflon diaphragm pump
SMC double Acting Pneumatic Solenoid 24V VS7-60- FHG-D-3N
Devilbiss Pneumatic Agitator Drive Motor
Pneumatic Valve Manifold 8x Martonair M/20152 B/172/D G 1/4 2,5-10 bar
Atlas Copco Dosol Single Point Lubricator DOS 15 B-C DOS 20 B-C
Control handle suit air balancer
Norgren M-50-LSU-2V Reed Switch Position Sensor
Norgren QM-34-S-2 Reed Switch Position Sensor with Led indicator
Parker 1" Inch Pneumatic ram cylinder Buna Rod Seal Kit RK2AHL0101 NEW
Parker 2" Inch pneumatic ram cylinder Bunan Piston Seal Kit PK202HLL01 NEW
Parker 2" Inch Bunan pneumatic ram cylinder Piston Ring Kit PR202H0001 NEW
Parker 3 1/4" Inch pneumatic ram cylinder Bunan Piston Seal Kit PK322HLL01 NEW
Fisher FS667 Type 667 Size 34 pneumatic actuator
Squeez-Eze Pneumatically Operated Side Cutter Model SP-01
Panduit Pneumatic Cable Tie & Cut gun PPTS Tension gun
FESTO Electric Displacment encoder MLO-POT-450-TLF 152628 002583 019150-07
SMC Solenoid valve VFS 2420
SMC manifold with valves VS5240 and VS5440
NORBRO 35FRK40 Pneumatic Actuator Repair Kit Worcester # VNO10500 72AX 66 NEW
KITZ 150/300 UTB.SCTB(M) 4 Ball Valve replacvement parts kit 72216V NEW
KITZ 150/300 SCTB(M) 2 inch Ball Valve replacvement parts kit NEW
KITZ 150/300 SCTB 1 1/2 Ball Valve replacement parts kit NEW
SMC VT317 pneumatic 3 way solenoid valve Hirschmann
Vortec 721-15h Vortex Cooler NEMA 12 solenoid valve and filter assembly
Panduit Manual Cable Tie & Cut gun GS2B Tension gun
HELLERMANN MK-5 Manual Cable Tie & Cut gun
KEYSTONE TYCO K-LOK Pneumatic actuated HP BUTTERFLY VALVE 6 inch ANSI 300 NEW
Atlas Copco EWD 50 Electronic Condensate Drain 110 Vac POM PN 16 IP55
BURKERT 2031A DN 20 3/4" SS diaphragm valve with 24 V DC 8631 control head
Azbil SPS300A202A10T Pressure Sensor Switch Transmitter Controller 0-500 KPa
Azbil Yamatake SPS300A205A20T Pressure Sensor Switch Transmitter 0-3500KPa
Azbil SPS300A203A10T Pressure Sensor Switch Transmitter Controller 0-1000 KPa
Azbil SPS300A205A10T Pressure Sensor Switch Transmitter Controller 0-3500 KPa
3 large body double acting pneumatic smc VP7-6-FG-D solenoid valves filter 110V
PIRTEK Hydraulic Class 35 13mm 1-2 c35-08 350 BAR 5000PSI Work Press MSHA IC-188
SMC AV4000-04-3DZ Working Press soft start up Pneumatic Valve 0.2 – 1.0MPa Volta
2 " 2 inch flanged Aro double diaphragm pump 6662A3-344-C PTFE
SMC AD600-10 25mm 1" inch port automatic pneumatic drain valve NEW
Vickers hydraulic accumulator 1.15 L NEW
Pneumatic Clamp Bracket 2 available
Pneumatic cylinder air ram - bore 80mm, stroke 150mm
Pneumatic Concrete Scabbling Tool Atlas Copco Construction Tools AB Type CP0006
SMC Cylinder Controller ECC50 ECC50C Rom Pack New
SMC Cylinder Controller ECC50 ECC50P-X10 Rom Pack New
Norbro 40R pneumatic valve actuator 42-RD- -40
Norbro 40R pneumatic valve actuator 45-RD- -40
Applicator head from automated grease nipple filling machine 25x10 SMC Pneumatic
SMC CKG1A63-75Y
SMC CKG1A63-100Y
SMC CKG1A63-125Y
SMC CKG1A63-150Y
SMC CKG1A50-50Y
SMC CKG1A50-75Y
SMC CKG1A50-100Y
SMC CKG1A50-125Y
Large double ended parker hannifin pneumatic or hydraulic cylinder ram
EGO Air Torque AT 60 SR6 F14/36 pneumatic valve actuator 10 bar 14.2 PSI
Keystone Pneumatic Actuator F79U 006 & STI Positioner SR/CCK STI
Pneumatic control box 2 large 24v SMC 5 port 5/2 valve valves 3x air regulator
Pneumatic machine, add bigger ram to make can crusher SMC VFA3130 pilot op valve
CKD WAQC-C3-FL20145?5 pneumatic cylinder ram position sensors, 2 available
Norgren 40mm bore 400mm stroke pneumatic ram cylinder QA/8040/59
NORBRO 42-ARK40-OS Pneumatic Actuator Repair Kit Worcester # VNO10842 72638V NEW
NORBRO 25-ARK40-OS Pneumatic Actuator Repair Kit Worcester # VNO10825 310405 NEW
KITZ Pneumatic Actuator Repair Kit #DA4 776004 / 72065W NEW
FISHER 1252-21042 gasket - pack of 16
KITZ 150/300 SCTA(M) 2 inch Ball Valve replacvement parts kit 72825W NEW
KITZ 150/300 UTB.SCTA(M) 3" Ball Valve replacement parts kit 72261W NEW
Worcester Controls 15RKF51 -TT KAF/KSV/K Valve repair kit 72748X NEW
Worcester Controls 20RKF51 -TT KAF/KSV/K Valve repair kit 72378X # VWO31600 NEW