|
Datasheet
3 m: W2 o/ E7 t2 E7 T/ l数据表
0 B; p: G3 O6 A" _0 n S; BBosch Sensortec
2 y6 |2 k* {! N- N; ]/ H, m& ?博世传感器; A; K3 k$ P! I4 k) ^
SMB380 型
/ J, b& k+ ~- h; ^. i" rThree-axis-accelerometer
7 R6 \3 o# \6 {, [7 I: G三轴加速度计(陀螺仪,数字信号输出)
! V0 w# {1 H2 H& } |; R/ B这款陀螺仪是民用品中比较流行的,体积2*8*10mm
) o+ u* r# @8 v8 }% u0 s9 r* c/ y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:
( \ Y% |* V' T/ |2 `(............
* ^2 V+ y, h8 C2 J+ u2 U1 x& h3.2 INTERRUPT SETTINGS ! @4 `1 T' i7 G. F- _# l
Five different types of interrupts can be programmed. When the corresponding criterion
3 v5 s0 d; I7 @8 Q) k8 F- F7 ibecomes valid, the interrupt pin is triggered to a high level. All interrupt criteria are combined
( @- P6 E1 M# d) |* f" `8 M0 Q& Iand drive the interrupt pad with an Boolean <OR> condition.
: Q( k! G3 ^2 }, l9 k' @3.2中断设置' ]; u) Z2 |2 W I
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。3 X1 ` f& I+ z" g' Z# c
; N8 a( D( E9 d8 u1 W! m
Interrupt generations may be disturbed by changes of EEPROM, image or other control bits
3 }- i5 R7 {. q# \9 ?because some of these bits influence the interrupt calculation. As a consequence, no write
4 C) z/ J/ V9 O- r5 ~- {sequence should occur when microprocessor is triggered by interrupt or the interrupt should be
4 J* A, b$ ?: D0 {* Ydeactivated on the microprocessor side when write sequences are operated. ! |+ ~- g% ?: `& p' n! S
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 [% T2 e7 m6 e4 i4 _
9 H) U3 T5 h1 S0 X$ t+ \
Interrupt criteria are using digital code coming from digital filter output. As a consequence all * R: q; a! P Q3 O1 W8 w2 g; r! W4 E
thresholds are scaled with range selection (section 3.1.3.2). Timings used for high acceleration + z. o9 N2 U/ T9 ^ U" I
and low acceleration debouncing are absolute values (1 LSB of HG_dur and LG_dur registers / S! J: }& a- h" C" a
corresponds to 1 millisecond, timiming accuracy is proportional to oscillator accuracy = +/-10%), 1 B9 Y0 ~# i9 `5 y8 k
thus it does not depend on selected bandwidth. Timings used for any motion interrupt and alert
! l" a: r: ]# V7 y# c8 Wdetection are proportional to bandwidth settings (section 3.1.3).
$ h& b# k! E1 W0 ]- `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 )
6 F6 O! O7 N* M$ r) M1 O' t6 L. ~: a
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!!! |
本帖子中包含更多资源
您需要 登录 才可以下载或查看,没有账号?注册会员
×
|