W5500 read interrupt re-triggering

Question

I am not sure what I am doing wrong here, but my socket rcv interrupt is re-triggering after clearing socket interrupt and common reg socket interrupt. Sequence is: Poll for SIR status Check Sn_IR status clear Sn_IR interrupt (tried writing 0xff) clear SIR interrupt. read both IR gives 0 res After that I read the rx buffer and send sock_RECV. Is that correct sequence ? or should I first read and send RECV and then clear the interrupts ?

dkay · Answer

Hi, gossamer. If RX data is remained in RX memory, recv interrupt is not cleared. So, Clear IR after sock_RECV command. Thanks.