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ADE7978复位后状态如何?

Question asked by glen_cao on Aug 11, 2015
Latest reply on Aug 18, 2015 by hmani

        目前在使用ADE7978芯片组, 遇到的问题是ADE7978在复位之后读取到的STATUS1寄存器(0xE503)的数据为0x000001A0, 手册当中描述的位21始终为1, 是不是意味着我读出的数据是错误的?

初始化程序如下:

void init_curr_ade7978(void)

{

     init_spi0();

    I_RST_DIS;

    SysCtlDelay((40000000/300000));

    I_RST_EN;

    SysCtlDelay((40000000/300000));

    I_RST_DIS;

    SysCtlDelay((40000000/30000)); 

 

    I_SS_HIGH;

    SysCtlDelay((40000000/300000));

    I_SS_LOW;

    SysCtlDelay((40000000/300000)); 

   

    I_SS_HIGH;

    SysCtlDelay((40000000/300000));

    I_SS_LOW;

    SysCtlDelay((40000000/300000));

   

    I_SS_HIGH;

    SysCtlDelay((40000000/300000));

    I_SS_LOW;

    SysCtlDelay((40000000/300000));

   

    I_SS_HIGH;

    SysCtlDelay((40000000/300000));

 

 

    ade7978_wr_byt(ADE7978_CURR, CONFIG2, 0);

    ade7978_wr_4byt(ADE7978_CURR, MASK1, 0x8000);

}

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