michas (12.01.2020 12:39, просмотров: 274) ответил evgeniy1294 на Запускать AutoNegotiation пробовали? Обычно пользуюсь ей, перезапускаю после потери изменения состояния линка. У меня сделано так:
Вот такой код у меня хорошо работает на другой девборде.
/*-------------------- PHY initialization and configuration ----------------*/
/* Put the PHY in reset mode */
if(!(ETH_WritePHYRegister(PHYAddress, PHY_BCR, PHY_Reset)))
{
/* Return ERROR in case of write timeout */
return ETH_ERROR;
}
/* Delay to assure PHY reset */
_eth_delay_(PHY_RESET_DELAY);
if(ETH_InitStruct->ETH_AutoNegotiation != ETH_AutoNegotiation_Disable)
{
/* We wait for linked status... */
do
{
timeout++;
} while (!(ETH_ReadPHYRegister(PHYAddress, PHY_BSR) & PHY_Linked_Status) && (timeout < PHY_READ_TO));
/* Return ERROR in case of timeout */
if(timeout == PHY_READ_TO)
{
return ETH_ERROR;
}
/* Reset Timeout counter */
timeout = 0;
/* Enable Auto-Negotiation */
if(!(ETH_WritePHYRegister(PHYAddress, PHY_BCR, PHY_AutoNegotiation)))
{
/* Return ERROR in case of write timeout */
return ETH_ERROR;
}
/* Wait until the auto-negotiation will be completed */
do
{
timeout++;
} while (!(ETH_ReadPHYRegister(PHYAddress, PHY_BSR) & PHY_AutoNego_Complete) && (timeout < (uint32_t)PHY_READ_TO));
/* Return ERROR in case of timeout */
if(timeout == PHY_READ_TO)
{
return ETH_ERROR;
}
/* Reset Timeout counter */
timeout = 0;
/* Read the result of the auto-negotiation */
RegValue = ETH_ReadPHYRegister(PHYAddress, PHY_SR);
/* Configure the MAC with the Duplex Mode fixed by the auto-negotiation process */
if((RegValue & PHY_DUPLEX_STATUS) != (uint32_t)RESET)
{
/* Set Ethernet duplex mode to Full-duplex following the auto-negotiation */
ETH_InitStruct->ETH_Mode = ETH_Mode_FullDuplex;
}
else
{
/* Set Ethernet duplex mode to Half-duplex following the auto-negotiation */
ETH_InitStruct->ETH_Mode = ETH_Mode_HalfDuplex;
}
/* Configure the MAC with the speed fixed by the auto-negotiation process */
if(RegValue & PHY_SPEED_STATUS)
{
/* Set Ethernet speed to 10M following the auto-negotiation */
ETH_InitStruct->ETH_Speed = ETH_Speed_10M;
}
else
{
/* Set Ethernet speed to 100M following the auto-negotiation */
ETH_InitStruct->ETH_Speed = ETH_Speed_100M;
}
}