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。