Comments (3)
gleefish
commented on August 15, 2024
查看pcb文件发现两个引脚未接地，修改后mpu正常工作，设备iic地址也正常显示为0x68，供大家参考。
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stig3
commented on August 15, 2024
同样的问题，数据只传输一组后保持不变，看到PCB上fsync那块是死铜，然后飞了跟线，让fsync接地，ad0悬空不影响，地址设置成0x69, 然后就工作正常了。
看了一下datasheet, 这个是同步信号，工作模式应该是收到低电平再更新数据
如果悬空的话，那就不更新数据的，所以这个数据只传输一组后保持不变的问题应该就是fsync悬空导致的。
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peng-zhihui
commented on August 15, 2024
新版已经加上了。
…------------------ 原始邮件 ------------------
发件人: "peng-zhihui/ESP32-PicoDK" ***@***.***>;
发送时间: 2021年7月22日(星期四) 上午10:54
***@***.***>;
***@***.***>;
主题: Re: [peng-zhihui/ESP32-PicoDK] MPU的AD0和FSYNC引脚未接地 (#10)
同样的问题，数据只传输一组后保持不变，看到PCB上fsync那块是死铜，然后飞了跟线，让fsync接地，ad0悬空不影响，地址设置成0x69, 然后就工作正常了。
看了一下datasheet, 这个是同步信号，工作模式应该是收到低电平再更新数据
如果悬空的话，那就不更新数据的，所以这个数据只传输一组后保持不变的问题应该就是fsync悬空导致的。
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Related Issues (20)
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