IP setup - Ping

Question

Greetings! I’m starting off with the WIZ850io module and want to configure a custom IP to communicate with my network. I’m setting it up through a SPI connection with CC3220sf chip from Texas Instruments and I’m not able to ping the module afterwards. The code to configure the module is the following: void configW5500(){ SPI_Transaction spiTransaction; bool transferOK = 0; uint8_t wBuff[30], aux = 0; //Common Register Block wBuff[aux++] = 0; //Common Register Block Address wBuff[aux++] = MODE_OFFSET; wBuff[aux++] = (COMMON_REGISTER_BLOCK << 3) + (ETHERNET_WRITE << 2) + CS_MODE; //Control Byte wBuff[aux++] = 0b00000000; //Mode.-(7)RST|(6)RESERVED|(5)WOL|(4)PING BLOCK|(3)PPPoE|(2)RESERVED|(1)FARP|(0)RESERVED wBuff[aux++] = 192; //Gateway IP Address wBuff[aux++] = 168; wBuff[aux++] = 1; wBuff[aux++] = 65; wBuff[aux++] = 255; //Gateway Subnet Mask wBuff[aux++] = 255; wBuff[aux++] = 255; wBuff[aux++] = 0; wBuff[aux++] = 0xCC; //Source HW Offset wBuff[aux++] = 0x48; wBuff[aux++] = 0x3A; wBuff[aux++] = 0x44; wBuff[aux++] = 0xAD; wBuff[aux++] = 0xE0; wBuff[aux++] = 192; //Source IP Address wBuff[aux++] = 168; wBuff[aux++] = 1; wBuff[aux++] = 50; wBuff[aux++] = 0; //Interrupt Low Level Timer wBuff[aux++] = 0; wBuff[aux++] = 0xFF; //Interrupt Register (read only, initializing here) wBuff[aux++] = 0b11110000; //Interrupt Mask.- Habilito las 4 que hay spiTransaction.count = aux; //Tamanho del mensaje a transmitir por SPI spiTransaction.txBuf = (void *)wBuff; //Buffer a enviar spiTransaction.rxBuf = NULL; //Buffer de recepcion. Solamente se envia, por lo que es NULL spiTransaction.arg = NULL; aux = 0; gSPIMaster = SPI_open(CONFIG_SPI_Master, &spiParams); //Apertura del canal SPI GPIO_write(GPIO_CS_ETHERNET, CS_ETHERNET_ENABLE); transferOK = SPI_transfer(gSPIMaster, &spiTransaction); //Transferencia por SPI, con parametro 1 el handle del SPI y 2 el mensaje GPIO_write(GPIO_CS_ETHERNET, CS_ETHERNET_DISABLE); wBuff[aux++] = 0; wBuff[aux++] = SOCKET_INTERRUPT_MASK_OFFSET; wBuff[aux++] = (COMMON_REGISTER_BLOCK << 3) + (ETHERNET_WRITE << 2) + CS_MODE; //Control Byte wBuff[aux++] = 0b11111111; //Socket Interrupt Mask wBuff[aux++] = 0x07; //Retransmision Timeout Period (0x07D0 = 2000 aka 200 ms) wBuff[aux++] = 0xD0; wBuff[aux++] = 9; //Retransmision Count.- (9 + 1)x200 ms = 2 seg wBuff[aux++] = 200; //PPP Link Control Protocol Request Timer.- 200x25 ms = 5 seg wBuff[aux++] = 0x01; //PPP Link Control Protocol Magic Number wBuff[aux++] = 0x00; //Destination Hardware Address Register in PPPoE mode (PPPoE disabled???????) wBuff[aux++] = 0x00; wBuff[aux++] = 0x00; wBuff[aux++] = 0x00; wBuff[aux++] = 0x00; wBuff[aux++] = 0x00; wBuff[aux++] = 0x00; //Session ID Register in PPPoE Mode (PPPoE disabled???????) wBuff[aux++] = 0x00; wBuff[aux++] = 0x00; //Maximum Receive Unit in PPPoE Mode (PPPoE disabled???????) wBuff[aux++] = 0x00; wBuff[aux++] = 192; //Unreachable IP Address wBuff[aux++] = 168; wBuff[aux++] = 1; wBuff[aux++] = 40; wBuff[aux++] = 0x12; //Unreachable Port…

Eugeny · Answer

Read written register values back to prove the correct values.

Eugeny · Answer

I would start with the following: ensure proper hardware reset with the W5500 reset pin after power up. perform software reset using MR pin after hardware reset. I am more than sure it is redundant to hardware reset, but would do it anyway. write only required information for the ping: SHAR, SIP, GAR, leaving everything else as default. use direct connect to PC with Wireshark running, turn on W5500, ensure there’s a link up, wait a minute and perform ping, and then see if there’s anything from W5500 in the Wireshark log.