w5500 halted in send or receive socket

Question

Hi! I use iolibrary from wiznet and approximately one time a week code halted in send or receive routines i suppouse socket state does not change bu why? while(1) { freesize = getSn_TX_FSR(sn); tmp = getSn_SR(sn); if ((tmp != SOCK_ESTABLISHED) && (tmp != SOCK_CLOSE_WAIT)) { close(sn); return SOCKERR_SOCKSTATUS; } if( (sock_io_mode & (1<<sn)) && (len > freesize) ) return SOCK_BUSY; if(len <= freesize) break; } My payload have 50 bytes maximum size. I cant understand what happened. I suppouse connection broke when socket begin send o receive data.

louis · Answer

Hi, May I know how the socket doesn’t change? First of all, I’ll attach the WIZnet library we’re providing. This code works well without errors. The chords might be tangled, so I recommend you porting the io library again. Thank you.