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Datasheet& p: ~& T" s7 K3 V
數據表
7 \( v' \: z8 W9 ~, fBosch Sensortec
! M+ ~: F1 F/ G博世傳感器3 `" V' s5 j6 g" d" i. t9 b+ Y
SMB380 型5 u8 h% R+ s) R
Three-axis-accelerometer( `: b" O+ `. C1 E# I; B1 |0 s7 r
三軸加速度計(陀螺儀,數字信號輸出)
9 l8 B* T$ n6 A& T& C2 s* x$ `這款陀螺儀是民用品中比較流行的,體積2*8*10mm: Y/ H7 x5 _% }0 a
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:
1 c1 @6 |; ~) Y3 z. V# Y% Y(............
* j! U/ J( G$ ]! A2 i3.2 INTERRUPT SETTINGS ' |7 {$ O" Z# B# I) C' C* D
Five different types of interrupts can be programmed. When the corresponding criterion 3 k w2 K; e7 U/ f; D
becomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined # P6 Y/ u5 C* N. e2 Y" [
and drive the interrupt pad with an Boolean <OR> condition. 7 e1 O$ v/ U4 _$ z" J
3.2中斷設置
/ T# P4 r; T; G3 z' R5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。& u- a, O; I0 _% n& M* H
5 Z) E( `' n2 N0 X1 SInterrupt generations may be disturbed by changes of EEPROM, image or other control bits + L1 o4 a" q2 r! V
because some of these bits influence the interrupt calculation. As a consequence, no write
0 i" }9 ^: S. u. [ @1 Wsequence should occur when microprocessor is triggered by interrupt or the interrupt should be
% _$ t0 W& j$ A# g$ O8 ydeactivated on the microprocessor side when write sequences are operated.
3 _- l1 ]1 E/ j; K+ m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。, U' x) b: T# S
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Interrupt criteria are using digital code coming from digital filter output. As a consequence all
: U9 Q- U2 V' t8 V/ a9 B+ zthresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration
; s2 V5 ^1 S5 @ f6 tand low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers : b& o) V) q0 g% t9 _5 E# k
corresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%),
: h: S) W p2 m/ i! |0 {0 ?" Mthus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert * D4 ?5 ]7 V! X' ~6 p
detection are proportional to bandwidth settings (section 3.1.3).
6 d0 s% G' U7 M4 @7 C. @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 )+ d/ u, D3 F' d
)
+ r- z' L1 `: M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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