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Driver for PHY LAN8740A?

John Morgan

Is there a driver for LAN8740A Ethernet PHY?
If not, is there any How-to for creating new driver for Network Component Ethernet PHY?
I would like to use this driver with STM32F207

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  • 0 in reply to Paolo Signorelli

    Try to change code for 100M register setting in following way:

    /* Check the link status. */
    for (tout = 0; tout < 0x10000; tout++) {
      regv = read_PHY (PHY_REG_BSR);
      if (regv & 0x0004) {
        /* Link is on, get connection info */
        regv = read_PHY (PHY_REG_PSCSR);
        if (regv & 0x0010) {
          /* Full-duplex connection */
          conn |= PHY_CON_SET_FULLD;
        }
        if ((regv & 0x0004) == 0) {
          /* 100Mb/s mode */
          conn |= PHY_CON_SET_100M;
        }
        break;
      }
    }

    Georg

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  • 0 in reply to Paolo Signorelli

    Try to change code for 100M register setting in following way:

    /* Check the link status. */
    for (tout = 0; tout < 0x10000; tout++) {
      regv = read_PHY (PHY_REG_BSR);
      if (regv & 0x0004) {
        /* Link is on, get connection info */
        regv = read_PHY (PHY_REG_PSCSR);
        if (regv & 0x0010) {
          /* Full-duplex connection */
          conn |= PHY_CON_SET_FULLD;
        }
        if ((regv & 0x0004) == 0) {
          /* 100Mb/s mode */
          conn |= PHY_CON_SET_100M;
        }
        break;
      }
    }

    Georg

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