LSM303DLH X轴总是溢出显示-4096 由+-2.5gauss改为+-4gauss 就不溢出了，大家遇上过吗
采到的数据，以下是以 +-2.5gauss量程http://cache.amobbs.com/bbs_upload782111/files_44/ourdev_669971U7Z5BD.jpg
(原文件名:aaaa.jpg) http://cache.amobbs.com/bbs_upload782111/files_44/ourdev_669972JXTOYU.jpg
(原文件名:bb.jpg)
大家看上一楼我发的数据，结合本楼图，采样到的X轴数据还是远小于635*2.5=1587的。为什么就溢出了呢？ 转动板子，在+x 或-x最大的时候，就显示-4096了。 转一圈的采到的X轴数据 量程为+-2.5gauss
MAG_X:26 MAG_Y:104 MAG_Z:-256
MAG_X:28 MAG_Y:104 MAG_Z:-263
MAG_X:24 MAG_Y:104 MAG_Z:-257
MAG_X:27 MAG_Y:105 MAG_Z:-265
MAG_X:26 MAG_Y:103 MAG_Z:-261
MAG_X:26 MAG_Y:107 MAG_Z:-261
MAG_X:30 MAG_Y:101 MAG_Z:-257
MAG_X:27 MAG_Y:101 MAG_Z:-261
MAG_X:25 MAG_Y:104 MAG_Z:-262
MAG_X:26 MAG_Y:107 MAG_Z:-259
MAG_X:26 MAG_Y:107 MAG_Z:-263
MAG_X:22 MAG_Y:108 MAG_Z:-260
MAG_X:15 MAG_Y:112 MAG_Z:-260
MAG_X:4 MAG_Y:147 MAG_Z:-253
MAG_X:-7 MAG_Y:170 MAG_Z:-245
MAG_X:-33 MAG_Y:191 MAG_Z:-239
MAG_X:-40 MAG_Y:195 MAG_Z:-234
MAG_X:-51 MAG_Y:196 MAG_Z:-238
MAG_X:-59 MAG_Y:196 MAG_Z:-235
MAG_X:-68 MAG_Y:198 MAG_Z:-233
MAG_X:-73 MAG_Y:202 MAG_Z:-228
MAG_X:-78 MAG_Y:202 MAG_Z:-226
MAG_X:-94 MAG_Y:199 MAG_Z:-229
MAG_X:-100 MAG_Y:207 MAG_Z:-220
MAG_X:-101 MAG_Y:208 MAG_Z:-219
MAG_X:-105 MAG_Y:205 MAG_Z:-217
MAG_X:-112 MAG_Y:207 MAG_Z:-219
MAG_X:-118 MAG_Y:208 MAG_Z:-209
MAG_X:-118 MAG_Y:203 MAG_Z:-213
MAG_X:-121 MAG_Y:204 MAG_Z:-209
MAG_X:-131 MAG_Y:203 MAG_Z:-205
MAG_X:-4096 MAG_Y:200 MAG_Z:-213
MAG_X:-4096 MAG_Y:191 MAG_Z:-209
MAG_X:-4096 MAG_Y:195 MAG_Z:-214
MAG_X:-4096 MAG_Y:188 MAG_Z:-210
MAG_X:-4096 MAG_Y:186 MAG_Z:-210
MAG_X:-4096 MAG_Y:183 MAG_Z:-208
MAG_X:-4096 MAG_Y:177 MAG_Z:-209
MAG_X:-4096 MAG_Y:170 MAG_Z:-210
MAG_X:-4096 MAG_Y:164 MAG_Z:-214
MAG_X:-4096 MAG_Y:157 MAG_Z:-206
MAG_X:-4096 MAG_Y:139 MAG_Z:-207
MAG_X:-4096 MAG_Y:123 MAG_Z:-207
MAG_X:-4096 MAG_Y:109 MAG_Z:-212
MAG_X:-4096 MAG_Y:104 MAG_Z:-209
MAG_X:-4096 MAG_Y:84 MAG_Z:-204
MAG_X:-4096 MAG_Y:75 MAG_Z:-211
MAG_X:-4096 MAG_Y:73 MAG_Z:-205
MAG_X:-4096 MAG_Y:60 MAG_Z:-204
MAG_X:-4096 MAG_Y:39 MAG_Z:-203
MAG_X:-4096 MAG_Y:28 MAG_Z:-196
MAG_X:-4096 MAG_Y:7 MAG_Z:-200
MAG_X:-4096 MAG_Y:-2 MAG_Z:-195
MAG_X:-4096 MAG_Y:-10 MAG_Z:-199
MAG_X:-4096 MAG_Y:-26 MAG_Z:-198
MAG_X:-4096 MAG_Y:-35 MAG_Z:-187
MAG_X:-4096 MAG_Y:-39 MAG_Z:-191
MAG_X:-4096 MAG_Y:-35 MAG_Z:-190
MAG_X:-4096 MAG_Y:-55 MAG_Z:-188
MAG_X:-4096 MAG_Y:-69 MAG_Z:-183
MAG_X:-4096 MAG_Y:-81 MAG_Z:-178
MAG_X:-4096 MAG_Y:-91 MAG_Z:-188
MAG_X:-132 MAG_Y:-105 MAG_Z:-182
MAG_X:-128 MAG_Y:-107 MAG_Z:-178
MAG_X:-116 MAG_Y:-111 MAG_Z:-180
MAG_X:-107 MAG_Y:-113 MAG_Z:-180
MAG_X:-96 MAG_Y:-120 MAG_Z:-183
MAG_X:-87 MAG_Y:-121 MAG_Z:-184
MAG_X:-76 MAG_Y:-122 MAG_Z:-187
MAG_X:-64 MAG_Y:-123 MAG_Z:-190
MAG_X:-59 MAG_Y:-127 MAG_Z:-193
MAG_X:-54 MAG_Y:-129 MAG_Z:-190
MAG_X:-54 MAG_Y:-129 MAG_Z:-187
MAG_X:-58 MAG_Y:-128 MAG_Z:-186
MAG_X:-51 MAG_Y:-133 MAG_Z:-179
MAG_X:-36 MAG_Y:-126 MAG_Z:-186
MAG_X:-27 MAG_Y:-127 MAG_Z:-187
MAG_X:-35 MAG_Y:-129 MAG_Z:-184
MAG_X:-30 MAG_Y:-129 MAG_Z:-185
MAG_X:-22 MAG_Y:-135 MAG_Z:-186
MAG_X:-7 MAG_Y:-128 MAG_Z:-181
MAG_X:4 MAG_Y:-128 MAG_Z:-188
MAG_X:25 MAG_Y:-128 MAG_Z:-185
MAG_X:41 MAG_Y:-120 MAG_Z:-182
MAG_X:54 MAG_Y:-118 MAG_Z:-180
MAG_X:71 MAG_Y:-109 MAG_Z:-182
MAG_X:79 MAG_Y:-98 MAG_Z:-186
MAG_X:80 MAG_Y:-92 MAG_Z:-185
MAG_X:92 MAG_Y:-93 MAG_Z:-187
MAG_X:97 MAG_Y:-78 MAG_Z:-188
MAG_X:103 MAG_Y:-63 MAG_Z:-194
MAG_X:104 MAG_Y:-61 MAG_Z:-196
MAG_X:115 MAG_Y:-50 MAG_Z:-186
MAG_X:118 MAG_Y:-44 MAG_Z:-198
MAG_X:125 MAG_Y:-34 MAG_Z:-194
MAG_X:129 MAG_Y:-30 MAG_Z:-192
MAG_X:125 MAG_Y:-27 MAG_Z:-195
MAG_X:127 MAG_Y:-28 MAG_Z:-192
MAG_X:132 MAG_Y:-14 MAG_Z:-198
MAG_X:137 MAG_Y:-5 MAG_Z:-191
MAG_X:-4096 MAG_Y:0 MAG_Z:-195
MAG_X:-4096 MAG_Y:12 MAG_Z:-197
MAG_X:-4096 MAG_Y:16 MAG_Z:-194
MAG_X:-4096 MAG_Y:24 MAG_Z:-195
MAG_X:-4096 MAG_Y:35 MAG_Z:-193
MAG_X:-4096 MAG_Y:58 MAG_Z:-201
MAG_X:-4096 MAG_Y:68 MAG_Z:-200
MAG_X:-4096 MAG_Y:73 MAG_Z:-197
MAG_X:-4096 MAG_Y:82 MAG_Z:-197
MAG_X:-4096 MAG_Y:94 MAG_Z:-200
MAG_X:-4096 MAG_Y:106 MAG_Z:-197
MAG_X:138 MAG_Y:112 MAG_Z:-196
MAG_X:132 MAG_Y:119 MAG_Z:-203
MAG_X:133 MAG_Y:123 MAG_Z:-204
MAG_X:137 MAG_Y:127 MAG_Z:-188
MAG_X:-4096 MAG_Y:128 MAG_Z:-194
MAG_X:129 MAG_Y:139 MAG_Z:-195
MAG_X:122 MAG_Y:144 MAG_Z:-191
MAG_X:125 MAG_Y:155 MAG_Z:-193
MAG_X:115 MAG_Y:166 MAG_Z:-192
MAG_X:117 MAG_Y:175 MAG_Z:-196
MAG_X:111 MAG_Y:177 MAG_Z:-197
MAG_X:100 MAG_Y:189 MAG_Z:-193
MAG_X:95 MAG_Y:193 MAG_Z:-191
MAG_X:98 MAG_Y:193 MAG_Z:-192
MAG_X:89 MAG_Y:201 MAG_Z:-192
MAG_X:85 MAG_Y:201 MAG_Z:-184
MAG_X:77 MAG_Y:208 MAG_Z:-195
MAG_X:72 MAG_Y:214 MAG_Z:-191
MAG_X:65 MAG_Y:213 MAG_Z:-194
MAG_X:60 MAG_Y:222 MAG_Z:-196
MAG_X:49 MAG_Y:224 MAG_Z:-198
MAG_X:44 MAG_Y:234 MAG_Z:-193
MAG_X:31 MAG_Y:226 MAG_Z:-195
MAG_X:28 MAG_Y:233 MAG_Z:-196
MAG_X:21 MAG_Y:242 MAG_Z:-199
MAG_X:3 MAG_Y:241 MAG_Z:-195
MAG_X:3 MAG_Y:240 MAG_Z:-200
MAG_X:0 MAG_Y:240 MAG_Z:-199
MAG_X:-11 MAG_Y:240 MAG_Z:-204
MAG_X:-9 MAG_Y:236 MAG_Z:-207
MAG_X:-15 MAG_Y:237 MAG_Z:-201
MAG_X:-24 MAG_Y:238 MAG_Z:-204
MAG_X:-27 MAG_Y:233 MAG_Z:-204
MAG_X:-32 MAG_Y:243 MAG_Z:-200
MAG_X:-38 MAG_Y:242 MAG_Z:-205
MAG_X:-43 MAG_Y:239 MAG_Z:-211
MAG_X:-58 MAG_Y:239 MAG_Z:-207
MAG_X:-64 MAG_Y:240 MAG_Z:-204
MAG_X:-69 MAG_Y:239 MAG_Z:-211
MAG_X:-79 MAG_Y:238 MAG_Z:-210
MAG_X:-79 MAG_Y:227 MAG_Z:-211
MAG_X:-91 MAG_Y:227 MAG_Z:-206
MAG_X:-91 MAG_Y:218 MAG_Z:-216 回复【3楼】TM2010
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你的数据很正常，必须选择不会溢出的量程才可以。 回复【4楼】TADLAW
回复【3楼】tm2010
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你的数据很正常，必须选择不会溢出的量程才可以。
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看数据,X轴的最大数据才138 ,然后就跳到溢出了,远没达到超出量程的值,不能理解为什么突然就溢出了. 回复【楼主位】TM2010
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为什么你的spec里sensitivity和我的不一样啊！！！汗死
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