ARP & TCP Connection Issues with W5500: Client and Server Modes Failing to Establish Connections (W5500 does not respond to ARP reply from PC)

Question

Problem Description: I’m currently facing an issue with my project involving the W5500 Ethernet module. Specifically, I’m unable to establish a successful TCP connection, whether the W5500 is configured as a client or a server. My initial goal was to configure it to be a server, but because it did not work as a server I though to would Details: Client Mode: When the W5500 is set up as a client, it successfully sends out an ARP broadcast, and my PC responds as expected. However, after this initial exchange, the W5500 does nothing further. Initially, I suspected that the issue might be related to the MAC address, so I tried using a MAC address from a known working Microchip device, but the problem persists. Server Mode: In server mode, when I attempt to connect to the W5500 using Hercules, the connection times out with no response from the W5500. The code seems to get stuck in a do-while loop. I added several register calls to check the state of the chip, but I haven’t identified the cause of the problem. I also tried pinging the W5500 from the Command Prompt, but it didn’t respond. Disabling the firewall didn’t make a difference either. I printed out the states of the sockets to diagnose the issue, but I haven’t found anything wrong with the configurations. Summary: The W5500 is unable to establish a TCP connection in either client or server mode. Below is the code I’m using. Any insights or suggestions would be greatly appreciated. My Code // Static Network Details wiz_NetInfo gWIZNETINFO = { .mac = { 0x80, 0x34, 0x28, 0x74, 0xA5, 0xCB }, //MSB → LSB .ip ={ 192, 168, 50, 14 }, .sn = { 255, 255, 255, 0 }, .gw ={ 192, 168, 50, 254 }, .dns = { 192, 168, 50, 254 }, .dhcp = NETINFO_STATIC }; // TCP CLIENT #if TCP_CLIENT_TEST == 1 // TCP Client Test printf(“
***************** TCP CLIENT******************
”); if(socket(1, Sn_MR_TCP, 0, SF_TCP_NODELAY)==1) { printf("
Socket Created Successfully"); } else { printf("
Cannot create socket"); while(1); } // Set Block or Non-block Mode uint8_t socket_io_mode = SOCK_IO_BLOCK; ctlsocket(1, CS_SET_IOMODE, &socket_io_mode); // Set blocking IO mode printf("
Connecting to server: %d.%d.%d.%d @ TCP Port: %d",destination_ip[0],destination_ip[1],destination_ip[2],destination_ip[3],destination_port); if(connect(1, destination_ip, destination_port)==SOCK_OK) { printf("
Connected with server."); } else { //failed printf("
Cannot connect with server!"); while(1){ #if UART_DEBUG == 1 //Read the PHYCFGR register uint8_t phycfgr_value = getPHYCFGR(); //Check and print the status based on the PHYCFGR register //Print the entire PHYCFGR register value printf("
PHYCFGR Register Value: 0x%02X
", phycfgr_value); #endif } } while (1) { //Return value of the send() function is the amount of data sent if(send(1, "ICH HABE DICH!
", 16)<=SOCK_ERROR) { printf("
Sending Failed!"); while(1); } else { printf("
Sending Success!"); } HAL_Delay(1000); } #endif //TCP SERVER printf(“
***************** TCP…

Eugeny · Answer

Joshua.O: I printed out the states of the sockets to diagnose the issue, but I haven’t found anything wrong with the configurations. Is it possible to see it, as well as all the communication which includes IP 192.168.50.14 (better with wireshark log file and not screenshot). And please choose the mode to troubleshoot - either client or server.