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Datasheet
( d5 B1 h7 Z: W$ C6 D数据表 8 Y3 ]; d7 b- A! m, \/ P
Bosch Sensortec
8 n P8 z' Q8 V/ n, a9 z博世传感器: N/ ?+ Z0 x, e+ f O# E, b
SMB380 型 p5 x7 x9 E6 z8 Q2 T) n
Three-axis-accelerometer
8 _. R0 w- L5 O" N# B' l* c, @7 C三轴加速度计(陀螺仪,数字信号输出)
' l/ Y, p' c5 _7 d这款陀螺仪是民用品中比较流行的,体积2*8*10mm. p1 j/ r7 H9 _9 V' b
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 C9 I6 }: X: Z, W1 k
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+ S: ?$ k2 b9 H6 E( x3.2 INTERRUPT SETTINGS
0 m% J3 z# R( x6 m# F6 RFive different types of interrupts can be programmed. When the corresponding criterion ( \# s( ?1 r" J/ ^) v, p3 J6 _
becomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined / d$ W" r0 [! J8 E
and drive the interrupt pad with an Boolean <OR> condition. ) q9 f! Y! y6 I; h" G
3.2中断设置( K' D2 X) X' \; N( K. X% ?' f) S+ q
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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" ?) X; m) `; f( d$ WInterrupt generations may be disturbed by changes of EEPROM, image or other control bits
/ R$ A( N0 [( n) [3 Fbecause some of these bits influence the interrupt calculation. As a consequence, no write
5 E$ J# ?7 L, H' Esequence should occur when microprocessor is triggered by interrupt or the interrupt should be
' k5 _ J" \" U$ g8 Ddeactivated on the microprocessor side when write sequences are operated.
2 H8 m) V# D) G8 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。8 O9 \) T; j* W' j$ c" g
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Interrupt criteria are using digital code coming from digital filter output. As a consequence all
9 E3 v7 n& D# m4 F0 Othresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration : O U! w- F& z/ W
and low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers 9 f! s0 h0 k+ ~" Z0 o3 n
corresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%), ) b' T) D; @, G9 L1 G$ K
thus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert % E: Z X5 z4 ]& a8 r
detection are proportional to bandwidth settings (section 3.1.3).
4 g6 P: {1 p$ a+ k2 q: J O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 ): y" S5 b4 N/ Q" c# s4 J* T0 ]
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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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