Part Number:TMS320F280049
你好:
下图中黄线为VDDIO,绿线为XRSn
按照对BOR的理解,When the VDDIO voltage drops below the BOR threshold, the device is forced into reset, and XRSn is pulled low. XRSn will remain in reset until the voltage returns to the operational range.
只有恢复到operational range,否则应该一直就是remain in reset ,如果是这样的话就不应该打嗝,实测出现打嗝,能不能帮忙分析一下,多谢
Green Deng:
你好,这个问题我可能要咨询一下芯片电源方面的工程师,还请耐心等待一下。
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Green Deng:
你好,这个是正常的“不正常”现象,勘误表里有说明:BOR: VDDIO Between 2.45 V and 3.0 V can Result in Multiple XRSn Pulses