W5500 getSn_RX_RSR always 0

Question

I am trying to do DHCP with a W5500 chip. I am able to send a DHCP discovery message and the DHCP server responds with a DHCP Offer message but the W5500 chip never receives this message (I have checked this with wireshark). I am using FreeRTOS and ESP32. The problem seems to be in getSn_RX_RSR as it always returns 0 so the software never tries to receive data from the chip. I hope you can help me. Thanks, Lorien WIZCHIP_INIT(); // This is SPI configuration gpio_pad_select_gpio(RST_ETH); // Hard reset W5500 gpio_set_direction(RST_ETH, GPIO_MODE_OUTPUT); gpio_set_level(RST_ETH, 0); vTaskDelay(500); gpio_set_level(RST_ETH, 1); vTaskDelay(500); wizchip_sw_reset(); vTaskDelay(200); uint8_t tmp; do { if(ctlwizchip(CW_GET_PHYLINK, (void*)&tmp) == -1) printf("Unknown PHY Link status.
"); } while(tmp == PHY_LINK_OFF); if(ctlnetwork(CN_SET_NETINFO, (void*) &gWIZNETINFO) < 0) { printf("FAILED TO SET NETWORK INFO
"); } xTaskCreate(W5500_timer_task, "W5500_TIMER_TASK", 1024, NULL, 3, &dhcp_timer_task_handle); if(gWIZNETINFO.dhcp == NETINFO_DHCP) { uint8_t * buffer = malloc(2048); DHCP_init(SOCK_DHCP, buffer); reg_dhcp_cbfunc(0, 0, 0); while(1) { uint8_t res = DHCP_run(); if(res != 1) printf("RES: %d
", res); switch(res) { case DHCP_IP_ASSIGN: printf("DHCP_IP_ASSIGN!
"); case DHCP_IP_CHANGED: printf("DHCP_IP_CHANGED!
"); break; case DHCP_IP_LEASED: printf("DHCP_IP_LEASED!
"); break; case DHCP_FAILED: printf("DHCP_FAILED!
"); my_dhcp_retry++; if(my_dhcp_retry > 20) { DHCP_stop(); // if restart, recall DHCP_init() #ifdef _MAIN_DEBUG_ printf(">> DHCP %d Failed
", my_dhcp_retry); #endif my_dhcp_retry = 0; return -1; } break; default: break; } } } return 0;

lorien berne · Answer

Nevermind, I had a bug in the spi communications.