你好
我正在使用LSM330DL并且两个传感器数据都具有400Hz ODR，并使用SPI协议将此数据读取到PIC MCU。
我当前正在使用STATUS_REG寄存器并轮询ZYXDA位以确定新数据是否可用，然后我读取OUT_寄存器。这个解决方案的问题是我不断轮询传感器，这会耗费大量电流。
我需要的是保持传感器和MCU处于低功耗/睡眠模式，并有一个中断（DRDY？）向MCU发出可用的新数据信号，因此MCU将唤醒，并从OUT_寄存器读取数据，然后继续回到睡眠模式。
在我看来，LSM的两个传感器读数都是对齐的（如果我错了，请纠正我），所以我认为我只需要一个中断信号用于任一传感器，然后从两者读取数据。
我应该如何设置和配置LSM以获得中断，以通知MCU新数据可用？
请注意，应用程序不是运动检测，而是400Hz采样，无论是否发生运动
＃lsm330dl #sampling #ddy-interrupt
以上来自于谷歌翻译
以下为原文
Hello
I'm using a LSM330DL and have at 400Hz ODR of the both sensors data, and read this data to a PIC MCU using SPI protocol.
I'm currently using the STATUS_REG register and poll the ZYXDA bit to determine if new data is available, and then I read the OUT_ registers. The problem of this solu
tion is I'm continously polling the sensor and this consumes a lot of current.
What I need is to keep both sensors and MCU in low power / sleepmode, and have a interrupt (DRDY?) to signal the MCU of new data available, so MCU will wake up, and read the data from the OUT_ registers, and go back to sleep mode.
It seems to me that both sensors readings of the LSM are aligned (correct me if I'm wrong), so I thought that I only need one interrupt signal for either sensor, and then read the data from both.
How should I setup and configure the LSM in order to get an interrupt to signal the MCU that new data is available?
Please note that the application is NOT motion detection, but 400Hz sampling, regardless motion occurred or not
#lsm330dl #sampling #drdy-interrupt
举报
