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Datasheet+ `3 h7 M `; L- ]
数据表 1 _9 q5 e- u/ |* c' I
Bosch Sensortec
$ N9 ]( T; p. |+ W& ~4 X. j- N/ C+ D博世传感器0 D, V$ w8 s9 R- |
SMB380 型! o+ F! ]' T& q7 t0 n `
Three-axis-accelerometer
/ H7 A' m( W% w三轴加速度计(陀螺仪,数字信号输出)- j) w( U5 y5 D
这款陀螺仪是民用品中比较流行的,体积2*8*10mm
c9 B; U+ r7 y1 C! q- G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:
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3.2 INTERRUPT SETTINGS % e0 h# u2 @5 J" D/ X( J
Five different types of interrupts can be programmed. When the corresponding criterion
8 T& @4 u0 ^2 e6 a: ?becomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined
+ d* z/ X5 o! p% X; d$ \* Wand drive the interrupt pad with an Boolean <OR> condition.
) p. J: {8 L2 C; {3.2中断设置
) d: o$ E/ F/ K! H7 ?- u5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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# j1 A h+ t- R9 h) fInterrupt generations may be disturbed by changes of EEPROM, image or other control bits & w1 k- K$ ], o, q* T
because some of these bits influence the interrupt calculation. As a consequence, no write 0 s# K S# o# c# S+ U
sequence should occur when microprocessor is triggered by interrupt or the interrupt should be
: F( t5 r; x: J% R! F, M; ? rdeactivated on the microprocessor side when write sequences are operated.
8 H6 x& ?3 F3 {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。6 x# A6 O/ L f f
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Interrupt criteria are using digital code coming from digital filter output. As a consequence all
! O+ v% o7 I/ U/ jthresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration
& L2 Z! _5 c4 b c( wand low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers ' b5 l1 Y' x: j# G, P
corresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%),
* ^0 h# d, K# q* w( Z8 q' W+ ithus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert " W2 K1 s8 j7 C" V2 M4 _4 h
detection are proportional to bandwidth settings (section 3.1.3). . F6 s$ d4 _- s( B) {5 ~ A( [
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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# V% H/ z& Z, A* w4 [# J$ ^% W# `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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