W5500 Sn_IMR and Sn_IR Issues

Mobius1 · 2024-09-13T15:10:19+09:00

Hello friends, I seem to be having an issue where on W5500 TCP Server when I attempt to connect with telnet connection nothing happens. I have check the ports and IP address and code and things seem to be correct logically. I tested the connection via wireshark and the client seems to be attempting to connect as it shows a SYN packet is present. wireshark test1182×554 26 KB It is to my understanding that once the SYN packet is detected that the Sn_SR should change to SOCK_SYNRECV and then transmits a SYN/ACK packet. This is not happening on my device and I was wonder what I need to do to fix it. Any help is appreciated! printf(“\r\nSOCKET IS NOW LISTENING\r\n”); uint8_t srData; while(WIZCHIP_SOCKET_READ(Sn_SR(3) | 0x68) == SOCK_LISTEN) { printf("\r\nWAITNG FOR CONNECTION\r\n"); //CHECK STATUS OF SR IN BEGINNING printf("\r\nTHIS IS THE VALUE OF SOCKET 3 SR: %02X\r\n", WIZCHIP_SOCKET_READ(Sn_SR(3) | 0x68)); //Check IMR AND IR printf("\r\nTHIS IS THE VALUE OF SOCKET 3 IMR: %02X\r\n", WIZCHIP_SOCKET_READ(Sn_IMR(3) | 0x68)); printf("\r\nTHIS IS THE VALUE OF SOCKET 3 IR: %02X\r\n", WIZCHIP_SOCKET_READ(Sn_IR(3) | 0x68)); //CHECK STATUS OF SR AT END printf("\r\nTHIS IS THE VALUE OF SOCKET 3 SR: %02X\r\n", WIZCHIP_SOCKET_READ(Sn_SR(3) | 0x68)); if (WIZCHIP_SOCKET_READ(Sn_IR(3) | 0x68) == 0x01) { printf("\r\nSOCKET IS WELLFORMED\r\n"); } if (WIZCHIP_SOCKET_READ(Sn_SR(3) | 0x68) == SOCK_ESTABLISHED) { printf("\r\nSOCKET ESTABLISHED\r\n"); break; } delay_ms(5000); } waiting for connection test864×811 10.1 KB

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