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Datasheet: `3 R1 X* g4 g& m; T5 V5 s; c7 R1 g3 ^
数据表
" E* y1 O! b3 u' p8 v- R/ q0 ABosch Sensortec" r8 Q3 F, b0 ]4 f
博世传感器
u9 r% {7 N8 q; }% jSMB380 型: C5 u4 p9 I& T: ^7 p" a# `
Three-axis-accelerometer( ?: H( Q9 \. _0 s3 O
三轴加速度计(陀螺仪,数字信号输出)
8 ^1 |. D, F! m: n6 g这款陀螺仪是民用品中比较流行的,体积2*8*10mm
5 p7 Q( f- K& ?4 k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:4 c3 N4 s, l1 u3 @- l" N
(............ % d, M2 h' K9 I
3.2 INTERRUPT SETTINGS 3 @" }/ F! E8 o) j5 q9 e1 {
Five different types of interrupts can be programmed. When the corresponding criterion
# ?- B! y/ s% r: h; bbecomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined
, K: {1 B& x6 R* K; jand drive the interrupt pad with an Boolean <OR> condition.
1 D2 B; k5 b, e3 m3.2中断设置
, ^% ]6 q7 n, ?7 p3 |) F5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。* h% R' T) L, i: D! f2 ~ M. j
3 [2 o8 p# U# }Interrupt generations may be disturbed by changes of EEPROM, image or other control bits 8 W6 T4 |3 f% k K
because some of these bits influence the interrupt calculation. As a consequence, no write
- z5 @: F* |" l+ j/ o& ?0 R3 \sequence should occur when microprocessor is triggered by interrupt or the interrupt should be / j0 S# S) ~9 ]1 Y+ Z
deactivated on the microprocessor side when write sequences are operated. ' U" f% H* ~5 J, }7 `6 o
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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Interrupt criteria are using digital code coming from digital filter output. As a consequence all
3 n& t& }4 ]4 ?* vthresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration 7 \) m+ T% e7 b! |
and low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers % z6 ` \; Q' @! ~/ F
corresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%),
; {. |2 l% h& t9 P/ ethus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert 1 }7 d7 ~& a+ L5 n7 q2 x1 q. ^
detection are proportional to bandwidth settings (section 3.1.3). 7 n5 P/ J, M. o ~1 s
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 )4 w) x' y) \/ F5 f( e- [
)
- l# Q! d i4 O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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