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Datasheet+ W# U: b" t' d5 ?9 b/ V
数据表
7 k2 M0 L& q$ uBosch Sensortec
" L9 I: {2 @6 Z! Y博世传感器
( l/ k. Y& D% M: A1 @SMB380 型/ e& L2 m7 q; ^* \+ r7 v
Three-axis-accelerometer
' U' f' E; ~* R6 Z三轴加速度计(陀螺仪,数字信号输出)$ G7 O6 |0 P6 u4 u F* k9 g4 A9 z% K
这款陀螺仪是民用品中比较流行的,体积2*8*10mm( y; B) d5 L, y0 C; N9 z' _, L
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:
; A, X. y" u: ^ y: T4 N(............
2 R& b6 z1 v6 t3.2 INTERRUPT SETTINGS 9 h3 E; X' f) b5 @) q6 Z# y# v
Five different types of interrupts can be programmed. When the corresponding criterion ( z: ~* o) z( s7 j: |3 S! I
becomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined / l8 @% P ~% @ ]( d0 d9 E
and drive the interrupt pad with an Boolean <OR> condition.
, u6 R ?/ {0 {/ z9 z6 I5 Y5 s' X3.2中断设置$ c7 v$ e2 N, Q+ O* s6 c% N2 u
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。; w1 b r5 l3 L+ p- W$ s+ g
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Interrupt generations may be disturbed by changes of EEPROM, image or other control bits 2 A! c/ ~) S5 q$ a. b6 x5 M
because some of these bits influence the interrupt calculation. As a consequence, no write " I7 i; K: L' p
sequence should occur when microprocessor is triggered by interrupt or the interrupt should be - h: Q, U: r, K# E5 n g w0 s
deactivated on the microprocessor side when write sequences are operated.
' y' T$ G+ R. x l3 X E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。- o8 l% a+ c" d" B
8 R) g% S e) _% W! K( GInterrupt criteria are using digital code coming from digital filter output. As a consequence all 5 g7 A D B9 ]) ~
thresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration ( X* f* Y$ q& f8 R7 E, ~6 n
and low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers
9 l: G# }: G* h, B( ?2 |3 mcorresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%), 3 d. i' F2 C- `& Y* q p" v
thus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert
' S2 Z( [% W8 l; x8 @detection are proportional to bandwidth settings (section 3.1.3). % Q2 Q) h; z( [0 l7 ^/ F
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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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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