unsigned long ENET_Configuration(void)
{
unsigned long res=0;
unsigned short tmp;
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_ETH_MAC | RCC_AHBPeriph_ETH_MAC_Tx |
RCC_AHBPeriph_ETH_MAC_Rx, ENABLE);
ETH_DeInit();
get_mac(mac);
ETH_MACAddressConfig(ETH_MAC_Address0, mac);
GPIO_ETH_MediaInterfaceConfig(GPIO_ETH_MediaInterface_RMII);
ETH_SoftwareReset();
while(ETH_GetSoftwareResetStatus()==SET) vTaskDelayUntil( &ExLastExecutionTime, ( portTickType ) 1 / portTICK_RATE_MS );
ETH_StructInit(Ð_InitStructure);
ETH_InitStructure.ETH_AutoNegotiation = ETH_AutoNegotiation_Enable;
ETH_InitStructure.ETH_Watchdog = ETH_Watchdog_Disable;
ETH_InitStructure.ETH_Jabber = ETH_Jabber_Disable;
ETH_InitStructure.ETH_JumboFrame = ETH_JumboFrame_Disable;
ETH_InitStructure.ETH_InterFrameGap = ETH_InterFrameGap_64Bit;
ETH_InitStructure.ETH_CarrierSense = ETH_CarrierSense_Enable;
ETH_InitStructure.ETH_Speed = ETH_Speed_10M;
ETH_InitStructure.ETH_ReceiveOwn = ETH_ReceiveOwn_Disable;
ETH_InitStructure.ETH_LoopbackMode = ETH_LoopbackMode_Disable;
ETH_InitStructure.ETH_Mode = ETH_Mode_FullDuplex;
ETH_InitStructure.ETH_RetryTransmission = ETH_RetryTransmission_Disable;
ETH_InitStructure.ETH_AutomaticPadCRCStrip = ETH_AutomaticPadCRCStrip_Disable;
ETH_InitStructure.ETH_BackOffLimit = ETH_BackOffLimit_10;
ETH_InitStructure.ETH_DeferralCheck = ETH_DeferralCheck_Disable;
ETH_InitStructure.ETH_ReceiveAll = ETH_ReceiveAll_Enable;
ETH_InitStructure.ETH_PassControlFrames = ETH_PassControlFrames_ForwardPassedAddrFilter;
ETH_InitStructure.ETH_BroadcastFramesReception = ETH_BroadcastFramesReception_Disable;
ETH_InitStructure.ETH_DestinationAddrFilter = ETH_DestinationAddrFilter_Normal;
ETH_InitStructure.ETH_PromiscuousMode = ETH_PromiscuousMode_Disable;
ETH_InitStructure.ETH_MulticastFramesFilter = ETH_MulticastFramesFilter_Perfect;
ETH_InitStructure.ETH_UnicastFramesFilter = ETH_UnicastFramesFilter_Perfect;
ETH_InitStructure.ETH_RxDMABurstLength = ETH_RxDMABurstLength_32Beat;
ETH_InitStructure.ETH_TxDMABurstLength = ETH_TxDMABurstLength_32Beat;
ETH_InitStructure.ETH_FlushReceivedFrame = ETH_FlushReceivedFrame_Enable;
ETH_InitStructure.ETH_SecondFrameOperate = ETH_SecondFrameOperate_Enable;
ETH_InitStructure.ETH_FixedBurst = ETH_FixedBurst_Enable;
res = ETH_Init(Ð_InitStructure, PHY_ADDRESS);
ETH_DMAITConfig(ETH_DMA_IT_NIS | ETH_DMA_IT_R | ETH_DMA_IT_T, ENABLE);
for(tmp=0;tmp<ETH_RXBUFNB;tmp++) Rx_Buff[tmp] = (unsigned long)Ð_RX[tmp][0];
for(tmp=0;tmp<ETH_TXBUFNB;tmp++) Tx_Buff[tmp] = (unsigned long)Ð_TX[tmp][0];
ETH_DMATxDescChainInit(DMATxDscrTab, (unsigned char*)Tx_Buff, ETH_TXBUFNB);
ETH_DMARxDescChainInit(DMARxDscrTab, (unsigned char*)Rx_Buff, ETH_RXBUFNB);
for(tmp=0;tmp<ETH_RXBUFNB;tmp++){ETH_DMARxDescReceiveITConfig(DMARxDscrTab+tmp, ENABLE);}
ETH_Start();
ETH_ResumeDMAReception();
return(res);
}
/**
* @brief Configures the Ethernet Interface
* @param None
* @retval None
*/
void Ethernet_Configuration(void)
{
ETH_InitTypeDef ETH_InitStructure;
GPIO_ETH_MediaInterfaceConfig(GPIO_ETH_MediaInterface_MII);
/* Reset ETHERNET on AHB Bus */
ETH_DeInit();
/* Software reset */
ETH_SoftwareReset();
/* Wait for software reset */
while(ETH_GetSoftwareResetStatus()==SET);
/* ETHERNET Configuration ------------------------------------------------------*/
/* Call ETH_StructInit if you don't like to configure all ETH_InitStructure parameter */
ETH_StructInit(Ð_InitStructure);
/* Fill ETH_InitStructure parametrs */
/*------------------------ MAC -----------------------------------*/
ETH_InitStructure.ETH_AutoNegotiation = ETH_AutoNegotiation_Enable ;
//ETH_InitStructure.ETH_Speed = ETH_Speed_100M;
ETH_InitStructure.ETH_LoopbackMode = ETH_LoopbackMode_Disable;
//ETH_InitStructure.ETH_Mode = ETH_Mode_FullDuplex;
ETH_InitStructure.ETH_RetryTransmission = ETH_RetryTransmission_Disable;
ETH_InitStructure.ETH_AutomaticPadCRCStrip = ETH_AutomaticPadCRCStrip_Disable;
ETH_InitStructure.ETH_ReceiveAll = ETH_ReceiveAll_Enable;
ETH_InitStructure.ETH_BroadcastFramesReception = ETH_BroadcastFramesReception_Disable;
ETH_InitStructure.ETH_PromiscuousMode = ETH_PromiscuousMode_Disable;
ETH_InitStructure.ETH_MulticastFramesFilter = ETH_MulticastFramesFilter_Perfect;
ETH_InitStructure.ETH_UnicastFramesFilter = ETH_UnicastFramesFilter_Perfect;
/* Configure ETHERNET */
ETH_Init(Ð_InitStructure, PHY_ADDRESS);
ETH_DMAITConfig(ETH_DMA_IT_NIS | ETH_DMA_IT_R, ENABLE);
}
/**
* @brief Configures the Ethernet Interface
* @param None
* @retval None
*/
void Ethernet_Configuration(void)
{
ETH_InitTypeDef ETH_InitStructure;
/* MII/RMII Media interface selection ------------------------------------------*/
#ifdef MII_MODE /* Mode MII with STM3210C-EVAL */
GPIO_ETH_MediaInterfaceConfig(GPIO_ETH_MediaInterface_MII);
/* Get HSE clock = 25MHz on PA8 pin (MCO) */
RCC_MCOConfig(RCC_MCO_HSE);
#elif defined RMII_MODE /* Mode RMII with STM3210C-EVAL */
GPIO_ETH_MediaInterfaceConfig(GPIO_ETH_MediaInterface_RMII);
// /* Set PLL3 clock output to 50MHz (25MHz /5 *10 =50MHz) */
// RCC_PLL3Config(RCC_PLL3Mul_10);
// /* Enable PLL3 */
// RCC_PLL3Cmd(ENABLE);
// /* Wait till PLL3 is ready */
// while (RCC_GetFlagStatus(RCC_FLAG_PLL3RDY) == RESET)
// {}
//
// /* Get PLL3 clock on PA8 pin (MCO) */
// RCC_MCOConfig(RCC_MCO_PLL3CLK);
#endif
/* Reset ETHERNET on AHB Bus */
ETH_DeInit();
/* Software reset */
ETH_SoftwareReset();
/* Wait for software reset */
while (ETH_GetSoftwareResetStatus() == SET);
/* ETHERNET Configuration ------------------------------------------------------*/
/* Call ETH_StructInit if you don't like to configure all ETH_InitStructure parameter */
ETH_StructInit(Ð_InitStructure);
/* Fill ETH_InitStructure parametrs */
/*------------------------ MAC -----------------------------------*/
ETH_InitStructure.ETH_AutoNegotiation = ETH_AutoNegotiation_Enable ;
ETH_InitStructure.ETH_LoopbackMode = ETH_LoopbackMode_Disable;
ETH_InitStructure.ETH_RetryTransmission = ETH_RetryTransmission_Disable;
ETH_InitStructure.ETH_AutomaticPadCRCStrip = ETH_AutomaticPadCRCStrip_Disable;
ETH_InitStructure.ETH_ReceiveAll = ETH_ReceiveAll_Disable;
ETH_InitStructure.ETH_BroadcastFramesReception = ETH_BroadcastFramesReception_Enable;
ETH_InitStructure.ETH_PromiscuousMode = ETH_PromiscuousMode_Disable;
ETH_InitStructure.ETH_MulticastFramesFilter = ETH_MulticastFramesFilter_Perfect;
ETH_InitStructure.ETH_UnicastFramesFilter = ETH_UnicastFramesFilter_Perfect;
#ifdef CHECKSUM_BY_HARDWARE
ETH_InitStructure.ETH_ChecksumOffload = ETH_ChecksumOffload_Enable;
#endif
/*------------------------ DMA -----------------------------------*/
/* When we use the Checksum offload feature, we need to enable the Store and Forward mode:
the store and forward guarantee that a whole frame is stored in the FIFO, so the MAC can insert/verify the checksum,
if the checksum is OK the DMA can handle the frame otherwise the frame is dropped */
ETH_InitStructure.ETH_DropTCPIPChecksumErrorFrame = ETH_DropTCPIPChecksumErrorFrame_Enable;
ETH_InitStructure.ETH_ReceiveStoreForward = ETH_ReceiveStoreForward_Enable;
ETH_InitStructure.ETH_TransmitStoreForward = ETH_TransmitStoreForward_Enable;
ETH_InitStructure.ETH_ForwardErrorFrames = ETH_ForwardErrorFrames_Disable;
ETH_InitStructure.ETH_ForwardUndersizedGoodFrames = ETH_ForwardUndersizedGoodFrames_Disable;
ETH_InitStructure.ETH_SecondFrameOperate = ETH_SecondFrameOperate_Enable;
ETH_InitStructure.ETH_AddressAlignedBeats = ETH_AddressAlignedBeats_Enable;
ETH_InitStructure.ETH_FixedBurst = ETH_FixedBurst_Enable;
ETH_InitStructure.ETH_RxDMABurstLength = ETH_RxDMABurstLength_32Beat;
ETH_InitStructure.ETH_TxDMABurstLength = ETH_TxDMABurstLength_32Beat;
ETH_InitStructure.ETH_DMAArbitration = ETH_DMAArbitration_RoundRobin_RxTx_2_1;
/* Configure Ethernet */
ETH_Init(Ð_InitStructure, PHY_ADDRESS);
/* Enable the Ethernet Rx Interrupt */
ETH_DMAITConfig(ETH_DMA_IT_NIS | ETH_DMA_IT_R, ENABLE);
}
/**
* @brief Configures the DP83848V : Ethernet RMII Interface.
* @param None
* @retval None
*/
void ET_STM32_ETH_Configuration(void)
{
vu32 Value = 0;
GPIO_InitTypeDef GPIO_InitStructure;
ETH_InitTypeDef ETH_InitStructure;
/* Enable ETHERNET Clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_ETH_MAC |
RCC_AHBPeriph_ETH_MAC_Tx |
RCC_AHBPeriph_ETH_MAC_Rx, ENABLE);
// Start Initial GPIO For Interface DP83848V
// Initial ET-STM32F ARM KIT Ethernet Interface = RMII Mode
// PA1 <- ETH_RMII_REF_CLK(Default)
// PA2 -> ETH_RMII_MDIO(Default)
// PA8 -> MCO(Default)
// PB11 -> ETH_RMII_TXEN(Default)
// PB12 -> ETH_RMII_TXD0(Default)
// PB13 -> ETH_RMII_TXD1(Default)
// PC1 -> ETH_RMII_MDC(Default)
// PD8 <- ETH_RMII_RXDV(Remap)
// PD9 <- ETH_RMII_RXD0(Remap)
// PD10 <- ETH_RMII_RXD1(Remap)
// Configure PA2 as alternate function push-pull
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2; //PA2 = ETH_RMII_MDIO
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// Configure PC1 as alternate function push-pull
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1; //PC1 = ETH_RMII_MDC
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
// Configure PB11, PB12 and PB13 as alternate function push-pull
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | //PB11 = ETH_RMII_TXEN
GPIO_Pin_12 | //PB12 = ETH_RMII_TXD0
GPIO_Pin_13; //PB13 = ETH_RMII_TXD1
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
// Configure PA1 as input
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1; //PA1 = ETH_RMII_REF_CLK
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// ETHERNET pins remapp in ET-STM32F ARM KIT board: RX_DV and RxD[1:0]
// PD8=CRS_DV(RMII Remap)
// PD9=RXD0(RMII Remap)
// PD10=RXD1(RMII Remap)
GPIO_PinRemapConfig(GPIO_Remap_ETH, ENABLE);
// Configure PD8, PD9, PD10 as input
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | //PD8 = ETH_RMII_RX_DV
GPIO_Pin_9 | //PD9 = ETH_RMII_RXD0
GPIO_Pin_10; //PD10 = ETH_RMII_RXD1
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOD, &GPIO_InitStructure);
/* Start of Config MCO Clock = 50MHz on PA8 */
// Configure MCO (PA8) as alternate function push-pull
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8; //PA8 = MCO
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// set PLL3 clock output to 50MHz (25MHz / 5 * 10 = 50MHz)
RCC_PLL3Config(RCC_PLL3Mul_10);
// Enable PLL3
RCC_PLL3Cmd(ENABLE);
// Wait till PLL3 is ready
while (RCC_GetFlagStatus(RCC_FLAG_PLL3RDY) == RESET){}
// Get clock PLL3 clock on PA8 pin
RCC_MCOConfig(RCC_MCO_PLL3CLK);
/*End of Initial MCO Clock = 50MHz on PA8 */
//Initial Ethernet Interface = RMII Mode
GPIO_ETH_MediaInterfaceConfig(GPIO_ETH_MediaInterface_RMII);
/* Reset ETHERNET on AHB Bus */
ETH_DeInit();
/* Software reset */
ETH_SoftwareReset();
/* Wait for software reset */
while(ETH_GetSoftwareResetStatus()==SET);
/* ETHERNET Configuration ------------------------------------------------------*/
/* Call ETH_StructInit if you don't like to configure all ETH_InitStructure parameter */
ETH_StructInit(Ð_InitStructure);
/* Fill ETH_InitStructure parametrs */
/*------------------------ MAC -----------------------------------*/
ETH_InitStructure.ETH_AutoNegotiation = ETH_AutoNegotiation_Enable ;
//ETH_InitStructure.ETH_Speed = ETH_Speed_100M; //Test 100 MHz
ETH_InitStructure.ETH_LoopbackMode = ETH_LoopbackMode_Disable;
//ETH_InitStructure.ETH_Mode = ETH_Mode_FullDuplex; //Test
ETH_InitStructure.ETH_RetryTransmission = ETH_RetryTransmission_Disable;
ETH_InitStructure.ETH_AutomaticPadCRCStrip = ETH_AutomaticPadCRCStrip_Disable;
ETH_InitStructure.ETH_ReceiveAll = ETH_ReceiveAll_Enable;
ETH_InitStructure.ETH_BroadcastFramesReception = ETH_BroadcastFramesReception_Disable;
ETH_InitStructure.ETH_PromiscuousMode = ETH_PromiscuousMode_Disable;
ETH_InitStructure.ETH_MulticastFramesFilter = ETH_MulticastFramesFilter_Perfect;
ETH_InitStructure.ETH_UnicastFramesFilter = ETH_UnicastFramesFilter_Perfect;
/* Configure ETHERNET */
Value = ETH_Init(Ð_InitStructure, PHY_ADDRESS);
}
void stm32f107EthInitGpio(NetInterface *interface)
{
GPIO_InitTypeDef GPIO_InitStructure;
//STM3210C-EVAL evaluation board?
#if defined(USE_STM3210C_EVAL)
//Enable AFIO clock
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
//Enable GPIO clocks
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |
RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD, ENABLE);
//Configure MCO (PA8) as an output
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//Configure MCO pin to output the HSE clock (25MHz)
RCC_MCOConfig(RCC_MCO_HSE);
//Select MII interface mode
GPIO_ETH_MediaInterfaceConfig(GPIO_ETH_MediaInterface_MII);
//Configure MII_MDIO (PA2)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//Configure MII_PPS_OUT (PB5), ETH_MII_TXD3 (PB8), MII_TX_EN (PB11),
//MII_TXD0 (PB12) and MII_TXD1 (PB13)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_8 | GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
//Configure MII_MDC (PC1) and MII_TXD2 (PC2)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
//Configure ETH_MII_CRS (PA0), ETH_MII_RX_CLK (PA1) and ETH_MII_COL (PA3)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_3;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//Configure ETH_MII_RX_ER (PB10)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOB, &GPIO_InitStructure);
//Configure ETH_MII_TX_CLK (PC3)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOC, &GPIO_InitStructure);
//Configure ETH_MII_RX_DV (PD8), ETH_MII_RXD0 (PD9), ETH_MII_RXD1 (PD10),
//ETH_MII_RXD2 (PD11) and ETH_MII_RXD3 (PD12)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOD, &GPIO_InitStructure);
//Remap Ethernet pins
GPIO_PinRemapConfig(GPIO_Remap_ETH, ENABLE);
//STM32-P107 evaluation board?
#elif defined(USE_STM32_P107)
//Enable AFIO clock
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
//Enable GPIO clocks
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA |
RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOC, ENABLE);
//Configure MCO (PA8) as an output
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//Configure PLL3 to output a 50MHz clock
RCC_PLL3Config(RCC_PLL3Mul_10);
//Enable PLL3
RCC_PLL3Cmd(ENABLE);
//Wait for the PLL3 to lock
while(RCC_GetFlagStatus(RCC_FLAG_PLL3RDY) == RESET);
//Configure MCO pin to output the PLL3 clock
RCC_MCOConfig(RCC_MCO_PLL3CLK);
//Select RMII interface mode
GPIO_ETH_MediaInterfaceConfig(GPIO_ETH_MediaInterface_RMII);
//Configure ETH_MDIO (PA2)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//Configure ETH_RMII_TX_EN (PB11), ETH_RMII_TXD0 (PB12) and ETH_RMII_TXD1 (PB13)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11 | GPIO_Pin_12 | GPIO_Pin_13;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
//Configure ETH_MDC (PC1)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
//Configure ETH_RMII_REF_CLK (PA1) and ETH_RMII_CRS_DV (PA7)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//Configure ETH_RMII_RXD0 (PC4) and ETH_RMII_RXD1 (PC5)
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOC, &GPIO_InitStructure);
//Do not remap Ethernet pins
GPIO_PinRemapConfig(GPIO_Remap_ETH, DISABLE);
#endif
}
