DRDY引脚在脉冲之后 通过检测上升沿MCU开始读取数据,在读取数据完成之后 DRDY不会拉低,以至于错过下一次的中断。但1278在下一次数据更新后会把DRDY拉低。
就是读取数据后DRDY不拉低,下次中断没有脉冲。
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