用原子的HAL库将lan8720部分修改为dp83848，有大神调通过吗

这件事有空再说 · 发表于 2019-1-30 16:03:29

H743开发板，HAL库的例程中用的是LAN8720，
由于我们硬件要使用DP83848，
所以对原子例程做了修改，对应DP83848的管脚定义和寄存器配置，
可是修改后，寄存器读出来的值始终是0XFFFF，这可能会是什么情况。

以下均是在原子例程上做的修改，

#define DP83848_PHY_ADDRESS    0x01 /* Relative to STM322xG-EVAL Board */

void HAL_ETH_MspInit_dp83848(ETH_HandleTypeDef *heth)
{
GPIO_InitTypeDef GPIO_Initure;
__HAL_RCC_GPIOA_CLK_ENABLE(); //开启GPIOA时钟
__HAL_RCC_GPIOB_CLK_ENABLE(); //开启GPIOB时钟
__HAL_RCC_GPIOC_CLK_ENABLE(); //开启GPIOC时钟
__HAL_RCC_GPIOG_CLK_ENABLE(); //开启GPIOG时钟
__HAL_RCC_ETH1MAC_CLK_ENABLE();       //使能ETH1 MAC时钟
__HAL_RCC_ETH1TX_CLK_ENABLE();       //使能ETH1发送时钟
__HAL_RCC_ETH1RX_CLK_ENABLE();       //使能ETH1接收时钟

GPIO_Initure.Pin = GPIO_PIN_8;
GPIO_Initure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_Initure.Mode = GPIO_MODE_AF_PP;
GPIO_Initure.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA,&GPIO_Initure);
//PA1,2,7
GPIO_Initure.Pin=GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_7;
GPIO_Initure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_Initure.Mode = GPIO_MODE_AF_PP;
  GPIO_Initure.Pull = GPIO_NOPULL;
GPIO_Initure.Alternate = GPIO_AF11_ETH;
HAL_GPIO_Init(GPIOA,&GPIO_Initure);

//PC1,4,5
GPIO_Initure.Pin=GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5;
GPIO_Initure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_Initure.Mode = GPIO_MODE_AF_PP;
GPIO_Initure.Pull = GPIO_NOPULL;
GPIO_Initure.Alternate = GPIO_AF11_ETH;
HAL_GPIO_Init(GPIOC,&GPIO_Initure);
//PB11,12,13
GPIO_Initure.Pin=GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13;
GPIO_Initure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_Initure.Mode = GPIO_MODE_AF_PP;
GPIO_Initure.Pull = GPIO_NOPULL;
GPIO_Initure.Alternate = GPIO_AF11_ETH;
HAL_GPIO_Init(GPIOB,&GPIO_Initure);
HAL_NVIC_SetPriority(ETH_IRQn,1,0);       //网络中断优先级应该高一点
HAL_NVIC_EnableIRQ(ETH_IRQn);
}

int32_t DP83848_Init(void)
{
u8 macaddress[6];
u32 timeout=0;
u32 regval=0;
u32 phylink=0;
int32_t status=DP83848_STATUS_OK;

//硬件复位
INTX_DISABLE();                      //关闭所有中断，复位过程不能被打断！
DP83848_Phy_Rest();
INTX_ENABLE();                         //开启所有中断

NETMPU_Config();                      //MPU保护设置
macaddress[0]=lwipdev.mac[0];
macaddress[1]=lwipdev.mac[1];
macaddress[2]=lwipdev.mac[2];
macaddress[3]=lwipdev.mac[3];
macaddress[4]=lwipdev.mac[4];
macaddress[5]=lwipdev.mac[5];

DP83848_ETHHandle.Instance=ETH;                            //ETH
DP83848_ETHHandle.Init.MACAddr=macaddress;                //mac地址
DP83848_ETHHandle.Init.MediaInterface=HAL_ETH_RMII_MODE; //RMII接口
DP83848_ETHHandle.Init.RxDesc=DMARxDscrTab;                //发送描述符
DP83848_ETHHandle.Init.TxDesc=DMATxDscrTab;                //接收描述如
DP83848_ETHHandle.Init.RxBuffLen=ETH_MAX_PACKET_SIZE;    //接收长度
HAL_ETH_Init(&DP83848_ETHHandle);                         //初始化ETH
HAL_ETH_SetMDIOClockRange(&DP83848_ETHHandle);

if(DP83848_WritePHY(DP83848_PHY_BCR,DP83848_PHY_Reset)>=0) //DP83848软件复位
{
      //等待软件复位完成
      if(DP83848_ReadPHY(DP83848_PHY_BCR,®val)>=0)
      {
         while(regval & DP83848_PHY_Reset)
         {
            if(DP83848_ReadPHY(DP83848_PHY_BCR,®val)<0)
            {
                  status=DP83848_STATUS_READ_ERROR;
                  break;
            }
            delay_ms(10);
            timeout++;
            if(timeout>=DP83848_TIMEOUT) break; //超时跳出,5S
         }

      }
      else
      {
         status=DP83848_STATUS_READ_ERROR;
      }
}
else
{
      status=DP83848_STATUS_WRITE_ERROR;
}
DP83848_StartAutoNego();             //开启自动协商功能

if(status== DP83848_STATUS_OK)          //如果前面运行正常就延时1s
      delay_ms(1000);                   //等待1s

//等待网络连接成功
timeout=0;
while(DP83848_GetLinkState()<= DP83848_STATUS_LINK_DOWN)
{
      delay_ms(10);
      timeout++;
      if(timeout>= DP83848_TIMEOUT)
      {
         status= DP83848_STATUS_LINK_DOWN;
         break; //超时跳出,5S
      }
}
phylink=LAN8720_GetLinkState();
if(phylink==DP83848_STATUS_100MBITS_FULLDUPLEX)
      printf("DP83848:100Mb/s FullDuplex\r\n");
else if(phylink==DP83848_STATUS_100MBITS_HALFDUPLEX)
      printf("DP83848:100Mb/s HalfDuplex\r\n");
else if(phylink==DP83848_STATUS_10MBITS_FULLDUPLEX)
      printf("DP83848:10Mb/s FullDuplex\r\n");
else if(phylink==DP83848_STATUS_10MBITS_HALFDUPLEX)
      printf("DP83848:10Mb/s HalfDuplex\r\n");
return status;
}