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我有STM32f103c8t6 mcu和LSM330 6DOF imu传感器。我尝试从LSM330TR imu传感器读取。我有个问题。 当我从imu读取陀螺仪数据时，一切都还可以。我可以阅读它们，但是当我尝试从imu读取acc数据时，我无法阅读它们。我认为问题在于传感器，或者有些东西看不见。你能帮我解决这个问题吗？问题的原因是什么？ 以上来自于谷歌翻译 以下为原文 Hi; I have stm32f103c8t6 mcu and LSM330 6DOF imu sensor. I try to read from LSM330TR imu sensor. I have a problem. When I read gyro datas from imu, everything is OK. I can read them, but when I tried to read acc datas from imu, I can't read them. I think problem is in sensor or there is something out of sight. Could you help me solve this problem? What could the cause of the problem? 
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9个回答
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使用I2C或SPI 3或4线模式？
在数据表中，每个函数都有不同的I2C从地址： 如果使用I2C，请检查您是否可以读取通常位于@ 0x0F周围的每个功能WHO_AM_I寄存器 以上来自于谷歌翻译 以下为原文 Using I2C or SPI 3 or 4 wire mode? In the datasheet, each function has different I2C slave address: If using I2C, check if you can read each function WHO_AM_I register usually located around @0x0F |
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我正在使用I2C intarface。在电路中，SDO_A引脚连接到VDD。所以我使用0x1D作为地址。当我阅读WHO_AM_I注册时，没有任何改变。再说一遍，我什么都看不懂。我为注册设置编写了BW，Scale，ODR，axis和BDU。
我在寄存器设置中丢失某些内容的概率是多少？ 以上来自于谷歌翻译 以下为原文 I'm using I2C intarface. In the circuit, SDO_A pin connect to VDD. So I use the 0x1D as address. When I read WHO_AM_I register, there is nothing changed. Again, I can't read anything. I wrote BW, Scale, ODR, axis and BDU for register settings. What is the probability that I am missing something in the register settings? |
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通常唯一可能的缺陷是子地址位7应设置为1以使用自动增量，然后读取多于一个字节。如果WHO_AM_I读数不起作用，则不知道。
以上来自于谷歌翻译 以下为原文 Usually the only typical possible pitfall is that the sub address bit 7 should be set to 1 to use autoincrement and then read more than a single byte. If the WHO_AM_I reading is not working, then don't know. |
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有谁知道如何解决这个问题？还是有人可以提供帮助？
以上来自于谷歌翻译 以下为原文 Does anyone know how to solve this problem? Or someone who can help? |
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你有CS_A和CS_G都连接到'1'（Vdd_IO）？你能分享一下原理图吗？
如果您甚至无法读取WHO_AM_I寄存器，则问题可能出在I2C配置或HW连接中。从逻辑分析仪捕获I2C通信也很有帮助。 以上来自于谷歌翻译 以下为原文 Do you have CS_A and CS_G both connected to '1' (Vdd_IO)? Can you share you schematic? If you are not able to read even WHO_AM_I register the problem would be probably in I2C configuration or in the HW connection. Also capture of I2C communication from a logic analyzer would be helpful. |
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是的，我有，我可以分享我的原理图。如果问题来自i2c配置，我认为我不能读取陀螺仪数据，或者问题是来自HW conncetion，它应该在LSM330中。在这种状态下，我该怎么办？我该如何解决这个问题？
。 以上来自于谷歌翻译 以下为原文 Yes,I have and I could share my schematic. If the problem was from the i2c configuration, I do not think I could read gyroscope data or if the problem was from the HW conncetion, it should be in LSM330. In this status, what should I do ? How can i solve this issue ? . |
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我打算用逻辑分析仪看一下。我检查了两个地址，软件正在返回一个确认失败错误。关于这个传感器，有源代码还是有不同的数据表文件？你能和我分享一下吗？问题可能出在我的加速度计软件中。
以上来自于谷歌翻译 以下为原文 I'm going to look with logic analyzer. I checked both of the addresses and the software is returning an Acknowledge Failure Error. Well about this sensor, are there a source code or are there different document from datasheet ? Can you share with me ? The problem might be in my software of accelerometer. |
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我分享了从逻辑分析仪观察i2c通信时获得的结果图像。它总是给我NAK。
以上来自于谷歌翻译 以下为原文 I share the image of the result I obtained when I observed the i2c communication from the logic analyzer. It's always giving me NAK. |
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此外，scl和sda连接用4.7k电阻上拉至3.3V。
注意：原始帖子包含大量线程对话，只能迁移到第9级 以上来自于谷歌翻译 以下为原文 In addition, the scl and sda connections were pulled up with a 4.7k resistor to 3.3V. Note: the original post contained a large number of threaded conversations and was only able to be migrated to the 9th level |
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