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器件型号：DP83826E 您好！
使用 LWIP 将 DP83826与 STM32H74连接时遇到问题。
- 我在 RMII 基本模式下运行、
- 虽然某些具有相同软件的电路板(Web 服务器、TCP、UDP 等)工作正常、但许多电路板仍面临相同的问题。
- 我正在调试模式下使用 PC 的 IP 和 MAC 地址、在 ARP 过程中观察传入的 RX 信号。 不过、我只是偶尔在 TX_D0和 TX_EN 中看到信号。
- 我已根据寄存器读数确认 MDIO 和 MDC 信号工作正常。 此外、焊接似乎没有问题。
- 输出时钟频率50MHz 正常(源自25MHz 输入)、并建立链路。
- 电路板上 Wireshark 没有任何 ARP 或 IP 请求
您能帮助我调试这个问题吗？ RX 然后 TX
另外、我想知道是否有办法测试 PHY 层、或许可以通过回送测试？ 如果是、您会建议使用哪种环回方法？
Dev addr 0x1 =>REG :0x467 value 0x97 151 0000000010010111 Dev addr 0x1 =>REG :0x468 value 0x195 405 0000000110010101 Dev addr 0x1 =>REG :0x0 value 0x3000 12288 0011000000000000 Dev addr 0x1 =>REG :0x1 value 0x786d 30829 0111100001101101 Dev addr 0x1 =>REG :0x2 value 0x2000 8192 0010000000000000 Dev addr 0x1 =>REG :0x3 value 0xa111 41233 1010000100010001 Dev addr 0x1 =>REG :0x4 value 0x1e1 481 0000000111100001 Dev addr 0x1 =>REG :0x5 value 0x4de1 19937 0100110111100001 Dev addr 0x1 =>REG :0x6 value 0x7 7 0000000000000111 Dev addr 0x1 =>REG :0x7 value 0x2001 8193 0010000000000001 Dev addr 0x1 =>REG :0x8 value 0x0 0 0000000000000000 Dev addr 0x1 =>REG :0x9 value 0x0 0 0000000000000000 Dev addr 0x1 =>REG :0xA value 0x102 258 0000000100000010 Dev addr 0x1 =>REG :0xB value 0x9 9 0000000000001001 Dev addr 0x1 =>REG :0xC value 0x0 0 0000000000000000 Dev addr 0x1 =>REG :0xD value 0x401f 16415 0100000000011111 Dev addr 0x1 =>REG :0xE value 0x195 405 0000000110010101 Dev addr 0x1 =>REG :0xF value 0x0 0 0000000000000000 Dev addr 0x1 =>REG :0x10 value 0x215 533 0000001000010101 Dev addr 0x1 =>REG :0x11 value 0x10b 267 0000000100001011 Dev addr 0x1 =>REG :0x12 value 0x6400 25600 0110010000000000 Dev addr 0x1 =>REG :0x13 value 0x2800 10240 0010100000000000 Dev addr 0x1 =>REG :0x14 value 0x0 0 0000000000000000 Dev addr 0x1 =>REG :0x15 value 0x0 0 0000000000000000 Dev addr 0x1 =>REG :0x16 value 0x100 256 0000000100000000 Dev addr 0x1 =>REG :0x17 value 0x65 101 0000000001100101 Dev addr 0x1 =>REG :0x18 value 0x400 1024 0000010000000000 Dev addr 0x1 =>REG :0x19 value 0x8c01 35841 1000110000000001 Dev addr 0x1 =>REG :0x1A value 0x0 0 0000000000000000 Dev addr 0x1 =>REG :0x1B value 0x7d 125 0000000001111101 Dev addr 0x1 =>REG :0x1C value 0x5ee 1518 0000010111101110 Dev addr 0x1 =>REG :0x1D value 0x0 0 0000000000000000 Dev addr 0x1 =>REG :0x1E value 0x102 258 0000000100000010 Dev addr 0x1 =>REG :0x1F value 0x0 0 0000000000000000 Dev addr 0x1 =>REG :0x20 value 0x3000 12288 0011000000000000 Dev addr 0x1 =>REG :0x21 value 0x786d 30829 0111100001101101 Dev addr 0x1 =>REG :0x22 value 0x2000 8192 0010000000000000 Dev addr 0x1 =>REG :0x23 value 0xa111 41233 1010000100010001 Dev addr 0x1 =>REG :0x24 value 0x1e1 481 0000000111100001 Dev addr 0x1 =>REG :0x25 value 0x4de1 19937 0100110111100001 Dev addr 0x1 =>REG :0x26 value 0x5 5 0000000000000101 Dev addr 0x1 =>REG :0x27 value 0x2001 8193 0010000000000001 Dev addr 0x1 =>REG :0x28 value 0x0 0 0000000000000000 Dev addr 0x1 =>REG :0x29 value 0x0 0 0000000000000000 [low_level_init:377] ETH_MOD FULL DUPLEX [low_level_init:378] ETH_SPEED 100M [low_level_init:420]LINK Up ! [ethernetif_input:540]----------STARTING ETHERNETIF_INPUT-----etharp_request: sending ARP request. etharp_raw: sending raw ARP packet. ethernet_output: sending packet 0x1002000c [low_level_output:462]Sendig !! etharp_timer MX_LWIP_Init done [tcp_server_init:105]create TCP [tcp_server_init:108]create TCP PCB done [tcp_server_init:115]tcp_bind done 0 [tcp_server_init:121]start tcp listening for _pcb [tcp_server_init:125]initialize LwIP tcp_accept callback functionethernet_input: dest:0hx:0hx:0hx:0hx:0hx:0hx, src:0hx:0hx:0hx:0hx:0hx:0hx, type:ff etharp_update_arp_entry: 192.168.1.1 - "MY PC MAC ADDRESS HERE" etharp_find_entry: found empty entry 0 etharp_find_entry: no empty entry found and not allowed to recycle etharp_input: incoming ARP request etharp_input: ARP request was not for us.
