Nucleo_F412_W5100S_Test
Nucleo_F412_W5100S send udp data
0
Components
Hardware componentsSTMicroelectronics - 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.
