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Datasheet3 x! e4 }: H$ T9 J
數(shù)據(jù)表 - l! `0 `, G+ K: g- g( h# h" o8 a: H
Bosch Sensortec8 W+ i% ~9 o2 h/ h, K
博世傳感器% R/ c: C1 o5 L" x+ R
SMB380 型
$ T' Z$ [2 S K2 C3 S1 z, Y- }1 iThree-axis-accelerometer# I- f: Y% e5 t3 D! l
三軸加速度計(jì)(陀螺儀,數(shù)字信號(hào)輸出)
9 u/ Z( M) O* L" X0 t這款陀螺儀是民用品中比較流行的,體積2*8*10mm
& X8 s9 R! f5 X) \6 x! a$ `采用可編程的控制方法,3.3-5v的電源輸入.其他的見數(shù)據(jù)表吧:* R* {; ?1 |3 t+ k9 j4 A0 \) A
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4 x- S$ C7 D; O& |9 a, ]3.2 INTERRUPT SETTINGS
+ z& H* o) P/ Z+ ]! F9 JFive different types of interrupts can be programmed. When the corresponding criterion 4 g- k9 \' p/ M4 R
becomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined
$ x4 q+ G% ^+ G5 E( s% vand drive the interrupt pad with an Boolean <OR> condition. 5 a+ K9 B: Y% d$ O/ T5 E; D9 z
3.2中斷設(shè)置
! S" l9 q9 }5 H- d( v: `9 [; B5種不同類型的可編程中斷。當(dāng)相應(yīng)的(中斷)準(zhǔn)則有效時(shí)，中斷引腳被一個(gè)高電平觸發(fā)。所有的中斷準(zhǔn)則都是相結(jié)合的（combined ），而且可以用布爾<OR>條件來(lái)（ Boolean <OR> condition）驅(qū)動(dòng)中斷緩沖器。
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Interrupt generations may be disturbed by changes of EEPROM, image or other control bits
& A6 @. C+ P5 j+ q9 y! a$ lbecause some of these bits influence the interrupt calculation. As a consequence, no write
" ~9 o, l9 {7 s- hsequence should occur when microprocessor is triggered by interrupt or the interrupt should be 6 G$ Z% |+ C, @. H, O2 I+ g- K
deactivated on the microprocessor side when write sequences are operated. 7 ]3 [- Q0 n3 s" F, w6 l
中斷的產(chǎn)生可能被EEPROM ，image或其他控制位的改變所改變.因?yàn)槠渲幸恍┛刂莆挥绊懼袛嘤?jì)算。因此，未寫的（中斷）時(shí)間序列應(yīng)該在微處理器被其他中斷觸發(fā)（生效）前發(fā)生，或者微處理器應(yīng)該屏蔽（后來(lái)發(fā)生的）中斷當(dāng)已寫（中斷）時(shí)間序列（write sequences）正在運(yùn)行時(shí)。
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Interrupt criteria are using digital code coming from digital filter output. As a consequence all
- n/ ]) z0 M/ D! K" K2 W% f1 X+ X ^thresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration
. N9 S- @ P% Jand low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers : f; G, ], J# s, V7 B( D
corresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%),
& V* ]8 o! V- C U/ @4 Mthus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert 0 a; a( B# F9 ^+ ^' k& e
detection are proportional to bandwidth settings (section 3.1.3).
# h- b, V% ]- q B5 G0 _中斷準(zhǔn)則使用的數(shù)字代碼來(lái)自數(shù)字濾波器輸出。因此所有閾值的設(shè)置都由量程選擇開關(guān)來(lái)界定（section 3.1.3.2 ） 。用于高加速度和低加速度之間的去抖timiming是絕對(duì)值（ HG_dur和LG_dur寄存器的一個(gè)最小可分辨信號(hào)（correspond to）相當(dāng)于1毫秒， timiming的準(zhǔn)確性于振蕩器精度成正比= + / -10 ％ ） ， 因此，它并不依賴于選定的帶寬。用于motion中斷位和alert規(guī)則的timiming正比于帶寬設(shè)置（section 3.1.3 ）
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這是本人接的一個(gè)翻譯活,不算什么機(jī)密,共40頁(yè),但是還沒翻完,先看十頁(yè)吧.發(fā)出來(lái)就是讓大家看看mens系統(tǒng)的陀螺儀是怎么工作的!!!有興趣的話,可以十天后下我的完整版的數(shù)據(jù)表!!! |
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發(fā)表于 2009-2-15 21:10:59
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