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Datasheet , }: n# W8 ^ |1 j0 R m数据表 7 |) Q& D! q0 b! @; b. _Bosch Sensortec2 I7 N- o( L) S' d4 R 博世传感器) u5 {, X# h- o; Q5 m SMB380 型 ~2 W2 x, t: Z6 ?Three-axis-accelerometer) L2 L1 F! @; q 三轴加速度计(陀螺仪,数字信号输出)5 Q8 Q- A4 Y/ @$ F7 e 这款陀螺仪是民用品中比较流行的,体积2*8*10mm$ `0 M" U: h* p/ s/ S( r 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: : _) E" @* d; u6 F2 k(............ / c/ a( z0 P8 q3 O* z' h. D2 n3.2 INTERRUPT SETTINGS ! v _2 t$ a8 G, s% ZFive different types of interrupts can be programmed. When the corresponding criterionD5 M; I" S' v0 E$ l( r becomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined 5 _9 x+ k: W" Iand drive the interrupt pad with an Boolean condition./ R7 w6 h: y/ f, c$ a6 K 3.2中断设置 ( v- ^9 Z8 A/ G2 M4 |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),而且可以用布尔条件来(Boolean condition)驱动中断缓冲器。 ; R: x) v) n, M1 y1 ` ( A3 r. O6 R' U' d7 ~" JInterrupt generations may be disturbed by changes of EEPROM, image or other control bits) l0 C3 x/ j) t1 F% I; H/ ^ because some of these bits influence the interrupt calculation. As a consequence, no write8 n' J5 C6 s, a' p0 `/ H! f- e sequence should occur when microprocessor is triggered by interrupt or the interrupt should be) }8 Y5 L% i0 ?9 M8 k4 s6 Y deactivated on the microprocessor side when write sequences are operated. 8 r4 `9 g6 u8 `" ? J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。 ; {$ J' S6 l% O5 n9 x6 D ; z3 h' u3 E+ sInterrupt criteria are using digital code coming from digital filter output. As a consequence all 0 ?( W# r: t/ H/ K+ }1 r7 \thresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration0 A# p0 j# t3 t" e and low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers + d$ D) a- u$ c. ], g5 C) v- r6 K$ u3 qcorresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%), " j3 r+ e5 T5 e r3 b' Fthus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert / i# e- W$ s1 f3 R) n7 q2 c. }4 vdetection are proportional to bandwidth settings (section 3.1.3). 7 u1 r( R, n! L2 T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)" G4 @9 W# B# J8 I3 B )/ k" s3 l9 M) ~( U 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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