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Datasheet
2 F. }1 z6 V7 K数据表 5 F' A0 f0 k4 A! |7 E5 O# i X5 `9 Y) `
Bosch Sensortec
9 E j3 P; ^" ?2 X: u$ n! U+ d博世传感器
: `) g9 I& i( r+ t! y! @' t" }4 m, U( fSMB380 型$ x4 v( P. i2 `2 u
Three-axis-accelerometer
0 M1 r2 u7 K$ J, G4 ^( b" ?# q) _* A三轴加速度计(陀螺仪,数字信号输出)
. V1 a8 z) r1 ~0 @$ K: C+ l# S这款陀螺仪是民用品中比较流行的,体积2*8*10mm
9 Q. F* B: E/ ?采用可编程的控制方法,3.3-5v的电源输入.其他的见数据表吧:% ~- b$ i |+ I, {! A o9 K$ \
(............ + J! ^8 U: A! n4 t/ Y
3.2 INTERRUPT SETTINGS
6 ?3 B7 q2 ]* G" ?! P1 ^0 v$ S" HFive different types of interrupts can be programmed. When the corresponding criterion - M; w& S6 S3 S. e$ j; w8 c. @
becomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined
$ _2 n% W* v/ Y( Y& Eand drive the interrupt pad with an Boolean <OR> condition.
6 E& \' S/ y3 R- Y8 Q3.2中断设置. Y6 F2 i4 B! \# A
5种不同类型的可编程中断。当相应的(中断)准则有效时,中断引脚被一个高电平触发。所有的中断准则都是相结合的(combined ),而且可以用布尔<OR>条件来( Boolean <OR> condition)驱动中断缓冲器。
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i( u1 i7 N+ g, [Interrupt generations may be disturbed by changes of EEPROM, image or other control bits " o' N; l9 K/ n- y2 S# L
because some of these bits influence the interrupt calculation. As a consequence, no write ' ]7 o4 o+ ?( _. ]1 u
sequence should occur when microprocessor is triggered by interrupt or the interrupt should be , O2 j$ W1 u# R* w0 ^8 Q( g
deactivated on the microprocessor side when write sequences are operated. ( c; ]( i# o0 t% x
中断的产生可能被EEPROM ,image或其他控制位的改变所改变.因为其中一些控制位影响中断计算。因此,未写的(中断)时间序列应该在微处理器被其他中断触发(生效)前发生,或者微处理器应该屏蔽(后来发生的)中断当已写(中断)时间序列(write sequences)正在运行时。
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4 g2 |5 p/ O q4 J$ QInterrupt criteria are using digital code coming from digital filter output. As a consequence all
) B1 l2 Q7 c/ A' J! U# sthresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration [: }. C, c I6 ~5 n" \) F
and low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers & T! H: x0 ~* U8 M0 L0 y- W/ o% k) c
corresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%), 5 t( F& F4 q. b0 Y$ A$ r0 N
thus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert
8 ]$ Z {1 s, d/ f4 Qdetection are proportional to bandwidth settings (section 3.1.3).
. p! G& @+ V# C$ o3 a% N中断准则使用的数字代码来自数字滤波器输出。因此所有阈值的设置都由量程选择开关来界定(section 3.1.3.2 ) 。用于高加速度和低加速度之间的去抖timiming是绝对值( HG_dur和LG_dur寄存器的一个最小可分辨信号(correspond to)相当于1毫秒, timiming的准确性于振荡器精度成正比= + / -10 % ) , 因此,它并不依赖于选定的带宽。用于motion中断位和alert规则的timiming正比于带宽设置(section 3.1.3 )
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7 K& E. P$ _0 C5 L6 ]这是本人接的一个翻译活,不算什么机密,共40页,但是还没翻完,先看十页吧.发出来就是让大家看看mens系统的陀螺仪是怎么工作的!!!有兴趣的话,可以十天后下我的完整版的数据表!!! |
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