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Datasheet
% M4 e8 z2 w8 Y k數據表
- A) K' ^( {; gBosch Sensortec7 o f& R- p# U o$ o! a6 S
博世傳感器8 e' [+ k n7 U
SMB380 型 c( c3 |: Q. j' i, d5 ~
Three-axis-accelerometer$ B# X8 A$ T' [
三軸加速度計(陀螺儀,數字信號輸出)7 Z8 [+ K% z+ a& ?5 H* b
這款陀螺儀是民用品中比較流行的,體積2*8*10mm
" o: V5 p! h( x9 O$ l4 V2 |- g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:+ l4 z5 M$ x n& F9 Q* b. A$ W+ [
(............
6 w) o2 r0 [* Z, ]) e9 A3.2 INTERRUPT SETTINGS ' b: K" s& Y# F8 u( ^: @5 M8 t
Five different types of interrupts can be programmed. When the corresponding criterion 1 A# H& n" l% x
becomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined + {; L! S9 z" a) V* l" r
and drive the interrupt pad with an Boolean <OR> condition. ' ?$ f, W: P$ o
3.2中斷設置2 ^! D2 v9 s; s
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。: O* R5 V$ Y9 M* N0 z$ [6 G: ]
% t+ G. y+ W; F
Interrupt generations may be disturbed by changes of EEPROM, image or other control bits / s( E* ]2 f8 P6 v# l
because some of these bits influence the interrupt calculation. As a consequence, no write
y/ M+ Y' }) w e$ p2 B: Qsequence should occur when microprocessor is triggered by interrupt or the interrupt should be s2 A# q2 O3 S
deactivated on the microprocessor side when write sequences are operated.
( b s/ Z% \2 r% K+ z1 l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。/ x5 v9 A, Y* H5 M& t5 [
7 `/ S5 N/ E. u( O- x1 e$ wInterrupt criteria are using digital code coming from digital filter output. As a consequence all 2 {$ M* m8 G9 o
thresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration 8 u" l: ]; v$ X6 R# Y
and low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers * n8 b# ]" F2 _( f0 O* F- k
corresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%),
7 B, e* c( C2 P# P% `" nthus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert
7 R4 e+ z: ]& Mdetection are proportional to bandwidth settings (section 3.1.3). 5 Q8 R$ O/ z1 N/ ]' T, `( R
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 )( |! l' P; ]9 \$ O% l' D
)
. ], B- D* T8 `5 _5 Y( ^3 A% C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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