1)示波器测量DEV 管脚有输出脉冲(间隔几个 us)3个一组,但是两组间隔时间挺长。
2)VDD 示波器显示锯齿波 7V-21V,周期260mS。
3)输出总是在3.3V。
感谢帮忙解答一下。
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1)示波器测量DEV 管脚有输出脉冲(间隔几个 us)3个一组,但是两组间隔时间挺长。
2)VDD 示波器显示锯齿波 7V-21V,周期260mS。
3)输出总是在3.3V。
感谢帮忙解答一下。