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Datasheet
1 N( P U! F) Y& g# M1 ^' n數(shù)據(jù)表
- b: g) f, ~, i& {Bosch Sensortec( K' `4 R0 \3 o4 B! X6 d
博世傳感器7 _0 r' J/ j2 U9 ^2 w
SMB380 型" O2 L* g+ ~, N' F, x) c
Three-axis-accelerometer
" G6 @$ Y p. o: z% Z三軸加速度計(jì)(陀螺儀,數(shù)字信號(hào)輸出)* P, g' Z+ P9 g& i
這款陀螺儀是民用品中比較流行的,體積2*8*10mm
4 A1 g% o: N- I- s! F3 {采用可編程的控制方法,3.3-5v的電源輸入.其他的見(jiàn)數(shù)據(jù)表吧:7 _" I% W! n3 O, [8 _' h
(............ 1 R# {2 Z2 \9 a+ d, V1 m
3.2 INTERRUPT SETTINGS ( [4 _7 j- L) H/ [# U* W3 L
Five different types of interrupts can be programmed. When the corresponding criterion + q5 C9 q2 O& Q) Q& M& v1 Y
becomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined
$ t, Q& _' p) s h$ `& Xand drive the interrupt pad with an Boolean <OR> condition. % Q0 f, O4 x# q2 E2 ~
3.2中斷設(shè)置) q$ X) c* u% E1 L) W7 l- N9 U
5種不同類(lèi)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。! X) w' ~: K2 k7 b1 ]& v" r
# ~( m' O5 Y8 M9 J& H2 a0 b
Interrupt generations may be disturbed by changes of EEPROM, image or other control bits 5 B5 T" F9 b. g$ N u7 _4 b
because some of these bits influence the interrupt calculation. As a consequence, no write ! X: m" f; `% N" r$ c% O
sequence should occur when microprocessor is triggered by interrupt or the interrupt should be
( c* b6 @/ G) t/ i4 y9 a' Udeactivated on the microprocessor side when write sequences are operated.
+ J" ?8 ]4 S) x% I! {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(xiě)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(xiě)（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 ! I- p; `" q) v
thresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration # o5 `' c% S! A
and low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers
8 U4 z: k7 D4 P: P, K( K jcorresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%),
& M9 x, O) [0 j# U1 Y. lthus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert
5 `8 g: t) p$ @! ?4 Tdetection are proportional to bandwidth settings (section 3.1.3). 3 t, z3 U+ x$ k8 z
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(kāi)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(lài)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(méi)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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