LM201 巴赫曼
廈門莫格電氣自動化有限公司
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PLC模塊,可編程控制器,CPU模塊,IO模塊,DO模塊,AI模塊,DI模塊,網通信模塊,
以太網模塊,運動控制模塊,模擬量輸入模塊,模擬量輸出模塊,數字輸入模塊,數字輸出
模塊,冗余模塊,電源模塊,繼電器輸出模塊,繼電器輸入模塊,處理器模塊,
本文將介紹三個常見的ARM SoC,包含ARM7和ARM9,并試著分析與比較它們的性能。
ARM7族群
低耗電量和低成本是ARM7的優點。不過,ARM7的zui大執行速率不到100 MHz,因此,在應用上,它和8051之類的微控制器(MCU)類似,但在功能上,ARM7通常優于MCU。
由于一般的MCU都是8-bit,而且不支持操作系統(O.S.),所以使用MCU開發應用產品的成本通常會比使用ARM7來得便宜。然而,就簡單的應用而言,ARM7也可以不需要操作系統,只使用純粹的韌體,照樣可以達到和MCU一樣或優于MCU的效能。
TI的TMS470
它的CPU核心是ARM7TDMI,16/32-bit RISC。其正常模式的系統時脈是28 MHz、管線模式是48 MHz。內含128K Bytes的FLASH和8K Bytes的SRAM。其它電路單元還包含:
零腳位鎖相回路(ZPLL)時脈模塊。
模擬的看門狗定時器(analog watchdog timer;AWLM201 巴赫曼D)。
實時中斷模塊(real-time interrupt;RTI)。
兩個”序列外圍接口”(SPI)模塊。
兩個”序列通訊接口”(SCI)模塊。
標準的”控制局域網絡”(control area network;CAN)控制器(SCC)。
第二類序列界面(C2SIa)。
10-bit、16個輸入信道多重緩沖”模擬數字轉換器”(MibADC)。
高階定時器(high-end timer;HET),控制16個輸出入端口(I/O)。
外部時脈預分頻器(external clock prescale;ECP)。
共49個I/O腳位,1個只能輸入的腳位。
TMS470的系統功能有:
地址譯碼。
保護內存。
監督內存和各外圍的總線。
重置(reset)和取消(abort)的例外管理。
所有內部中斷源的排序(prioritization)。
裝置的時脈控制。
平行的特性記號(signature)分析(PSA):是一種自動檢測故障的功能,可以利用多個輸入的特性記號來檢測數據流。這個特性記號可以用來判定處理器是處于好的或壞的狀態。
上述的ZPLL、HET、MibADC是TMS470的特殊功能。ZPLL包含了一個PLL、一個時脈監督(clock-monitor)電路、一個時脈致能(clock-enable)電路和一個預分頻器(預分頻值是從1~8)。ZPLL的功能是將外部的參考電壓乘以預分頻值,以獲得較高的頻率,供給TMS470內部使用。ZPLL提供ACLK給TMS470的系統模塊,之后,系統模塊會產生系統時脈(SYSCLK)、實時中斷時脈(RTICLK)、CPU時脈(MCLK)、外圍接口時脈(ICLK)。所謂”零腳位”是指ZPLL沒有提供外部濾波器的接腳,亦即不需要連接外部濾波器的意思。
許多不熟悉TI芯片的硬件工程師,經常不知道要如何將石英振蕩器(crystal oscillator)或外部的時脈信號連接到TI芯片上。其實,TMS470內部已經具有一個振蕩器電路(在ZPLL內),但若要啟動它,外部需要連接一個4MHz~20 MHz的石英或諧振器(resonator),并且要在OSCIN和OSCOUT腳位之間連接負載電容,如圖2(a)所示。這個負載電容的大小應該由石英振蕩器的供貨商提供,如果施予不正確的載電容值,可能無法使TMS470正常開機和工作。
此外,如果不使用TMS470內部的振蕩器,而改用外部的參考時脈或外部的振蕩器輸出信號,此時要將1.8V的時脈信號連接到OSCIN腳位,并將OSCOUT腳位保持開路的狀態,如附圖2(b)所示。當然,不同廠牌的芯片的時脈來源之連接方式不盡相同,硬件工程師事先應仔細查閱它們的技術手冊。
HET是一種*的智能型定時器,它為實時的應用提供精確的計時功能。此定時器是由軟件控制的,使用精簡的指令集、特殊的微電路架構、I/O端口。它可以應用于數據比較、采集,或當成GPIO,尤其適用于對多個傳感器(sensor)的輸入數據做比較,或輸出復雜的和精確的時間脈沖(如:PWM脈沖)來驅動起動器(actuator)。
HET的周邊具有”XOR—分享”的功能,此功能可以讓兩相鄰的HET通道被XOR在一起,和HET的標準輸出脈沖相比,這能夠輸出更小的脈沖信號。
為了讓使用者可以為FLASH、RAM、HET RAM尋址,TMS470有提供“內存選擇”(memory selection)的功能。每一個“內存選擇”具有它自己的“內存基本地址緩存器(memory base address register)”—MFBAHRx和MFBALRx(分別是高位和低位元),用來定義各個內存區塊的起始(基本)地址、區塊大小和保護方式。每一個“內存選擇”的基本地址是透過緩存器來設定的,它們應該要符合附圖3中的映像地址之邊界值—必須是區塊大小的整數倍。圖4是TMS470的“內存選擇”的分配情形。
MibADC接受一個模擬信號,并將它轉換成一個10-bit的數字信號。MibADC具有兩個模式:相容vs.緩沖模式。在兼容模式中,TMS470的“程序模型”(programmer‘s model)和TMS470的ADC模塊兼容,而且MibADC的數字輸出是儲存在“數字輸出緩存器”(digital result register)中;“程序模型”包含:緩存器、尋址模式(addressing mode)和中斷。兼容模式能讓ADC的程序設計工作變得比較容易,因為只要直接讀取數字輸出緩存器即可取得轉換后的數字數據。在緩沖模式中,數字元輸出緩存器被3個FIFO緩沖存儲器取代—分別表示不同的轉換群組(事件、群組1、群組2)。在兼容模式中,MibADC的FIFO是被“中斷服務例程(ISR)”讀取。
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