| LPCOpen Platform v1.03 LPCOpen Platform for NXP LPC Microcontrollers

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Modules | Macros | Functions
BOARD: Board specific PHY drivers
BOARD: Common board components used with board drivers

## Detailed Description

The simple PHY function API provides simple non-blocking PHY status monitoring and initialization support for various Ethernet PHYs. To initialize the PHY, call lpc_phy_init() once. lpc_phy_init() requires several standard functions from the MAC driver for interfacing to the PHY via a MII link (Chip_ENET_StartMIIWrite(), Chip_ENET_IsMIIBusy(), Chip_ENET_StartMIIRead(), and Chip_ENET_ReadMIIData()).

Once initialized, just preiodically call the lpcPHYStsPoll() function from the background loop or a thread and monitor the returned status to determine if the PHY state has changed and the current PHY state.

## Modules
| BOARD: PHY status and control driver for the DP83848
| BOARD: PHY status and control driver for the SMSC 87x0

## Macros
#define | PHY_LINK_ERROR (1 << 0)
#define | PHY_LINK_BUSY (1 << 1)
#define | PHY_LINK_CHANGED (1 << 2)
#define | PHY_LINK_CONNECTED (1 << 3)
#define | PHY_LINK_SPEED100 (1 << 4)
#define | PHY_LINK_FULLDUPLX (1 << 5)

## Functions
uint32_t | lpcPHYStsPoll (void)
| Phy status update state machine.
uint32_t | lpc_phy_init (bool rmii, p_msDelay_func_t pDelayMsFunc)
| Initialize the PHY.

## Macro Definition Documentation

#define PHY_LINK_BUSY (1 << 1)

PHY status bit for MII link busy

Definition at line 57 of file lpc_phy.h.

#define PHY_LINK_CHANGED (1 << 2)

PHY status bit for changed state (not persistent)

Definition at line 58 of file lpc_phy.h.

#define PHY_LINK_CONNECTED (1 << 3)

PHY status bit for connected state

Definition at line 59 of file lpc_phy.h.

#define PHY_LINK_ERROR (1 << 0)

PHY status bit for link error

Definition at line 56 of file lpc_phy.h.

#define PHY_LINK_FULLDUPLX (1 << 5)

PHY status bit for full duplex mode

Definition at line 61 of file lpc_phy.h.

#define PHY_LINK_SPEED100 (1 << 4)

PHY status bit for 100Mbps mode

Definition at line 60 of file lpc_phy.h.

## Function Documentation

uint32_t lpc_phy_init | ( | bool | rmii,
|  | p_msDelay_func_t | pDelayMsFunc
| ) |  |

Initialize the PHY.

Parameters

  rmii | : Initializes PHY for RMII mode if true, MII if false
  pDelayMsFunc | : Delay function (in mS) used for this driver

Returns
  PHY_LINK_ERROR or 0 on success

Note
  This function initializes the PHY. It will block until complete. It will not wait for the PHY to detect a connected cable and remain busy. Use lpcPHYStsPoll to detect cable insertion.

Definition at line 187 of file lpc_phy_dp83848.c.

uint32_t lpcPHYStsPoll | ( | void |  | ) |

Phy status update state machine.

Returns
  An Or'ed value of PHY_LINK_* statuses

Note
  This function can be called at any rate and will poll the the PHY status. Multiple calls may be needed to determine PHY status.

Definition at line 253 of file lpc_phy_dp83848.c.