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Datasheet
5 d8 A5 k+ Q# B5 l3 w數據表 0 d' |4 K$ M! v6 a0 w
Bosch Sensortec
3 F5 K. Y" E/ V- B" L6 ~" [8 o3 x博世傳感器; T/ Y" P% N8 S; d ]
SMB380 型5 o9 ~# @( s. U) a ^0 c9 O
Three-axis-accelerometer
* Q. p6 @$ \% R( A H0 I三軸加速度計(陀螺儀,數字信號輸出)
. R# g0 ~' n) ^: y+ n: S. F/ {這款陀螺儀是民用品中比較流行的,體積2*8*10mm* L. E- W$ m4 @. F7 T
采用可編程的控制方法,3.3-5v的電源輸入.其他的見數據表吧:
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3.2 INTERRUPT SETTINGS
5 N0 _) n" {1 y0 bFive different types of interrupts can be programmed. When the corresponding criterion
) }' r; k [1 Ybecomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined
4 i& T' R& s5 zand drive the interrupt pad with an Boolean <OR> condition.
1 h+ @ C$ m+ `% }; I/ j3.2中斷設置9 D9 @5 n" C$ H
5種不同類型的可編程中斷。當相應的(中斷)準則有效時,中斷引腳被一個高電平觸發。所有的中斷準則都是相結合的(combined ),而且可以用布爾<OR>條件來( Boolean <OR> condition)驅動中斷緩沖器。9 Z% I. d' q, ]+ S2 P3 p. y* o
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Interrupt generations may be disturbed by changes of EEPROM, image or other control bits ! X P& J3 g8 X @- Z7 m5 R# {
because some of these bits influence the interrupt calculation. As a consequence, no write ) K. Q$ {* |# W# C" A8 ?
sequence should occur when microprocessor is triggered by interrupt or the interrupt should be # C4 P0 m1 U( t; d5 O
deactivated on the microprocessor side when write sequences are operated.
( c& M! y: N% W& `中斷的產生可能被EEPROM ,image或其他控制位的改變所改變.因為其中一些控制位影響中斷計算。因此,未寫的(中斷)時間序列應該在微處理器被其他中斷觸發(生效)前發生,或者微處理器應該屏蔽(后來發生的)中斷當已寫(中斷)時間序列(write sequences)正在運行時。2 R3 I2 O9 k# ]' s2 C
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Interrupt criteria are using digital code coming from digital filter output. As a consequence all 2 {" g. X4 J$ `+ l) t. e. y" |
thresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration
1 V$ a' `- A9 uand low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers
- {% c: H2 O: ~. s1 u1 {& vcorresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%),
' k: b. z- r0 s+ |, f& W+ y. V: ~thus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert & {9 J0 C! B1 }
detection are proportional to bandwidth settings (section 3.1.3). 7 {3 A' R7 [" E6 t5 C5 G
中斷準則使用的數字代碼來自數字濾波器輸出。因此所有閾值的設置都由量程選擇開關來界定(section 3.1.3.2 ) 。用于高加速度和低加速度之間的去抖timiming是絕對值( HG_dur和LG_dur寄存器的一個最小可分辨信號(correspond to)相當于1毫秒, timiming的準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規則的timiming正比于帶寬設置(section 3.1.3 )* r& L8 q2 p. h$ ?6 W9 l& a
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這是本人接的一個翻譯活,不算什么機密,共40頁,但是還沒翻完,先看十頁吧.發出來就是讓大家看看mens系統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據表!!! |
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