W5100 Arduino Shield on STM32L496AG Discovery Board

Question

Hello, Has anyone used the Arduino Ethernet shield with a W5100 on the STM32L496 board? I have tired to follow different example and the program gets hung on the wizchip_init(bufSize, bufSize); command. I believe it cannot initialize. Also, if I am able to initialize it, can I use modbus TCP with the shield? Thank you. void wzn_select(void) { HAL_GPIO_WritePin(GPIOA, GPIO_PIN_15, GPIO_PIN_RESET); } void wzn_deselect(void) { HAL_GPIO_WritePin(GPIOA, GPIO_PIN_15, GPIO_PIN_SET); } void wzn_write_byte(uint8_t wb) { HAL_SPI_Transmit(&hspi1, &wb, 1, 0xffff); } uint8_t wzn_read_byte(void) { uint8_t rd_byte = 0; HAL_SPI_Receive(&hspi1, &rd_byte, 1, 0xffff); return rd_byte; } void wzn_write(uint8_t* pBuf, uint16_t len) { HAL_SPI_Transmit(&hspi1, pBuf, len, 0xffff); } void wzn_read(uint8_t* pBuf, uint16_t len) { HAL_SPI_Receive(&hspi1, pBuf, len, 0xffff); } void wzn_config(void) { uint8_t bufSize = {2, 2, 2, 2}; reg_wizchip_cs_cbfunc(wzn_select, wzn_deselect); reg_wizchip_spi_cbfunc(wzn_read_byte, wzn_write_byte); wizchip_init(bufSize, bufSize); wiz_NetInfo netInfo = { .mac = {0x00, 0x08, 0xdc,0x00, 0xab, 0xcd}, .ip = {192, 168, 1, 64}, .sn = {255, 255, 255, 0} }; wizchip_setnetinfo(&netInfo); wizchip_getnetinfo(&netInfo); printf(“MAC Address: %02X:%02X:%02X:%02X:%02X:%02X
”, netInfo.mac[0], netInfo.mac[1], netInfo.mac[2], netInfo.mac[3], netInfo.mac[4], netInfo.mac[5]); printf(“IP Address: %d.%d.%d.%d
”, netInfo.ip[0],netInfo.ip[1],netInfo.ip[2],netInfo.ip[3]); printf(“SUB: %d.%d.%d.%d
”, netInfo.sn[0],netInfo.sn[1],netInfo.sn[2],netInfo.sn[3]); } static void MX_GPIO_Init(void) { GPIO_InitTypeDef gpio; // SCK - PA5 gpio.Pin = GPIO_PIN_5; gpio.Mode = GPIO_MODE_AF_PP; gpio.Pull = GPIO_PULLUP; gpio.Speed = GPIO_SPEED_HIGH; gpio.Alternate = GPIO_AF5_SPI1; HAL_GPIO_Init(GPIOA, &gpio); // MISO - PB4 // MOSI - PB5 gpio.Pin = GPIO_PIN_4 | GPIO_PIN_5; gpio.Mode = GPIO_MODE_AF_PP; gpio.Pull = GPIO_PULLUP; gpio.Speed = GPIO_SPEED_HIGH; gpio.Alternate = GPIO_AF5_SPI1; HAL_GPIO_Init(GPIOB, &gpio); // CS - PA15 gpio.Pin = GPIO_PIN_15; gpio.Mode = GPIO_MODE_AF_PP; HAL_GPIO_Init(GPIOA, &gpio); } static void MX_SPI1_Init(void) { hspi1.Instance = SPI1; hspi1.Init.Mode = SPI_MODE_MASTER; hspi1.Init.Direction = SPI_DIRECTION_2LINES; hspi1.Init.DataSize = SPI_DATASIZE_8BIT; hspi1.Init.CLKPolarity = SPI_POLARITY_LOW; hspi1.Init.CLKPhase = SPI_PHASE_1EDGE; hspi1.Init.NSS = SPI_NSS_SOFT; hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_4; hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB; hspi1.Init.TIMode = SPI_TIMODE_DISABLED; hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED; hspi1.Init.CRCPolynomial = 10; hspi1.Init.CRCLength = SPI_CRC_LENGTH_DATASIZE; hspi1.Init.NSSPMode = SPI_NSS_PULSE_ENABLED; HAL_SPI_Init(&hspi1); }

Charlie Chen · Answer

Hi There, hope you fix it and I have same issue . Could you please share the reason. Thanks