[问答]

有人能告诉我在哪里弄乱了这个传感器的配置吗？

1360 传感器

问答对人有帮助，内容完整，我也想知道答案0 你好，我设置H3LIS331DL加速度计在超过编程阈值时触发中断时遇到麻烦。我可以将器件配置为在INT1和INT2焊盘上准备好新数据时触发中断（用示波器确认）。但是，阈值中断永远不会触发。我使用了以下配置： - 低功耗模式@ 10Hz，X / Y / Z轴使能：0b1100 0111用CTRL_REG1写入 - 没有高通滤波器 - 没有睡眠唤醒功能 - INT2焊盘上的阈值中断，中断未锁存 - ＆gt; CTRL_REG3 = 0 - 满量程范围+ -100g，块数据更新：0b1000 0000用CTRL_REG4写入 - 或3轴中断的组合：用INT2_CFG写入的0b0010 1010 - 阈值设定为~2g（49mg / LSB @ + -100g） - > 0b0010 1000用INT2_THS编写 - 没有最短持续时间不同的参数很好地写入传感器（读取它们和示波器测量）。通过这种配置，我在静止时读取INT2_SRC中的0b0001 0101（阈值下的X / Y / Z），但摇动它不会改变。由于阈值是在7位上定义的，我假设，在这种情况下，低于阈值低于-2g并且不低于2g，这是正确的（那么为什么我在INT2_SRC中设置了“低于阈值”标志）？将阈值降低到1g并摇动传感器会产生相同的结果，不会触发中断。有人能告诉我在哪里弄乱了这个传感器的配置吗？干杯以上来自于谷歌翻译以下为原文 Hello, I have troubles set ting the H3LIS331DL accelerometer to trigger an interrupt when a programmed threshold is crossed. I can configure the device to trigger an interrupt when new data is ready on both INT1 and INT2 pad (confirmed with an oscilloscope). However, the threshold interrupt never fires. I used the following configuration : - Low power mode @ 10Hz, X/Y/Z axis enable : 0b1100 0111 written in CTRL_REG1 - No high pass filter - No sleep to wake function - Threshold interrupt on INT2 pad, interrupt not latched -->CTRL_REG3 = 0 - Full scale range +-100g, block data update : 0b1000 0000 written in CTRL_REG4 - OR combination of interrupt on the 3 axis : 0b0010 1010 written in INT2_CFG - Threshold value set to ~2g (49mg/LSB @ +-100g) --> 0b0010 1000 written in INT2_THS - No minimum duration The different parameters are well written to the sensor (reading them back and oscilloscope measurement). With this configuration, I read 0b0001 0101 in INT2_SRC (X/Y/Z under threshold) at rest, but shaking it doesn t change. Since the threshold is defined on 7bits, I assume, that lower than threshold is lower than -2g in this case and not lower than 2g, is this correct (so why do I have 'lower than threshold' flags set in INT2_SRC)? Decreasing the threshold to 1g and shaking the sensor give the same result, no interrupt are triggered. Can someone tell me where I messed the configuration of this sensor please? Cheers 0
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答案对人有帮助，有参考价值0 你好，我认为，问题在于阈值设置。我认为，你的假设不正确。阈值定义为7位，满量程= 100g，1LSB为100g / 128 = 0.781g。因此，要将阈值设置为2g，INT2_THS值应为0x03。请注意典型的零克水平，即1克。对于低阈值，可以在没有任何移动的情况下触发中断（1g重力+ ~1g零-g级别）。我检查了你的配置，除了 INT2_THS设置。如果我设置INT2_THS = 0x05，当我强烈震动传感器时会触发中断。以上来自于谷歌翻译以下为原文 Hello, I think, the problem is in threshold setting. I think, your assumption is not correct. The threshold is defined on 7bits, for full scale = 100g, the 1LSB will be 100g/128 = 0.781g. So to set the threshold to 2g the INT2_THS value should be 0x03. Please be aware of the typical zero-g level which is 1g. For a low threshold the interrupt can be triggered without any movement (1g of gravity + ~1g of zero-g level). I have checked your configuration and it works fine except the INT2_THS setting . If I set the INT2_THS = 0x05, the interrupt is triggered when I strongly shake with the sensor.

2019-6-4 12:11:16 评论举报曾玲娟