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DP83822IF: ZYNQ的RGMII与DP83822IF通信问题

Part Number: DP83822IF

硬件上,采用ZYNQ的RGMII接口,与DP83822IFRHBR连接。在板卡调试中,ZYNQ可以与DP83822通信,寄存器状态也能读到:

IEEE reg[0] = 3100
IEEE reg[0] = 3100
IEEE reg[1] = 7849
IEEE reg[2] = 2000
IEEE reg[3] = A240
IEEE reg[4] = DE1
IEEE reg[5] = 0
IEEE reg[6] = 4
IEEE reg[7] = 2001
IEEE reg[8] = 0
IEEE reg[9] = 0
IEEE reg[10] = 100
reg[F] = 0
reg[10] = 2
reg[11] = 108
reg[12] = 0
reg[13] = 800
reg[14] = 0
reg[15] = 0
reg[16] = 100
reg[17] = 12C1
reg[18] = 400
reg[19] = A01F
reg[1A] = 0
reg[1B] = 7D
reg[1C] = 5EE
reg[1D] = 0
reg[1E] = 102
reg[1F] = 0

问题是:RJ45不能与PHY建立连接。

  • 您好,

    为更加有效地解决您的问题,我已将您的问题发布在E2E英文技术论坛上,请更了解这款芯片的TI资深工程师为您解答,一旦得到回复后我会立即回复给您。帖子链接如下,您也可以关注帖子,以方便查看或追问后续疑问。

    英文论坛对应子论坛链接:

    https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1218444/dp83822if-rj45-cannot-establish-a-link-with-phy

  • E2E工程师已回复:

    我可以问几个问题以便进一步调试吗:

    •我不确定我的理解是否正确,如果我错了,请纠正我:您是在RJ45侧面临连接问题。RGMII在您的电路板上运作良好。

    •如果我的理解是正确的,那么您用于连接DP83822的链接合作伙伴是什么?

    •如果可能的话,你能画一个关于您设置的框图吗

    May I ask couple question for further debug:

    • I am not sure if my understand is correct, please correct me if I am wrong.
      • Customer is facing an issue on the link up on the RJ45 side. RGMII works fine in customer's board
    • If my understand is correct, what is the link partner that customer is using to link up the DP83822?
    • If possible, could you also draw a block diagram on what is customer's setup?
  • 您好,您的问题是否解决,没有的话请反馈以上信息

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