Nucleo_F412_W5100S

Nucleo_F412_W5100S_Test

Nucleo_F412_W5100S send udp data

COMPONENTS Hardware components

STM - NUCLEO-F412ZG

x 1

wiznet - W5100S Ethernet Shield

x 1

PROJECT DESCRIPTION

HardWare Set

Nucleo-F412

W5100S-shield

Project Set

PIN Config

CLK Config

GPIO Config

SPI Config

Parameter Settings

DMA Settings

Program Seq

Program Diagram

SPI Config Code



  void csEnable(void)
  {
      HAL_GPIO_WritePin(SPI1_CS_GPIO_Port, SPI1_CS_Pin, GPIO_PIN_RESET);
  }

  void csDisable(void)
  {
      HAL_GPIO_WritePin(SPI1_CS_GPIO_Port, SPI1_CS_Pin, GPIO_PIN_SET);
  }

  void spiWriteByte(uint8_t tx)
  {
      uint8_t rx;
      while (HAL_SPI_GetState(&hspi1) != HAL_SPI_STATE_READY);
      HAL_SPI_TransmitReceive(&hspi1, &tx, &rx, 1, 10);
      while (HAL_SPI_GetState(&hspi1) == HAL_SPI_STATE_BUSY_TX);    
  }

  uint8_t spiReadByte(void)
  {
      uint8_t rx = 0, tx = 0xFF;
      while (HAL_SPI_GetState(&hspi1) != HAL_SPI_STATE_READY);
      HAL_SPI_TransmitReceive(&hspi1, &tx, &rx, 1, 10);
      while (HAL_SPI_GetState(&hspi1) == HAL_SPI_STATE_BUSY_RX);
      return rx;
  }

  static void wizchip_read_burst(uint8_t *pBuf, uint16_t len)
  {
      HAL_SPI_Receive_DMA(&hspi1, pBuf, len);
      while (HAL_DMA_GetState(hspi1.hdmarx) == HAL_DMA_STATE_BUSY);
      while (HAL_SPI_GetState(&hspi1) == HAL_SPI_STATE_BUSY_RX);    
      return;
  }

  static void wizchip_write_burst(uint8_t *pBuf, uint16_t len)
  {
      HAL_SPI_Transmit_DMA(&hspi1, pBuf, len);
      while (HAL_DMA_GetState(hspi1.hdmatx) == HAL_DMA_STATE_BUSY);
      while (HAL_SPI_GetState(&hspi1) == HAL_SPI_STATE_BUSY_TX);
      return;
  }

Test Config

Result

Program Log

AX2

WireShark

When transmitting 41,820 bytes using UDP, with a TX buffer allocated at 8K and an SPI clock at 20 MHz utilizing DMA, the results indicated that each transmission took approximately 25 to 35 milliseconds.

Documents

Nucleo_F412_W5100S_Test
github source code

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