Ethernet

Driver Implementations

The ARM::CMSIS-Driver Pack contains implementations of CMSIS-Ethernet drivers for the following devices:

Driver	Description
KSZ8851SNL/SNLI	Ethernet PHY and MAC interfaces for KSZ8851.
LAN9220	Ethernet PHY and MAC interfaces for LAN9220.
DP83848C	Ethernet PHY interface for DP83848C.
KSZ8061RNB	Ethernet PHY interface for KSZ8061.
KSZ8081RNA	Ethernet PHY interface for KSZ8081.
LAN8710A	Ethernet PHY interface for LAN8710A.
LAN8720	Ethernet PHY interface for LAN8720.
LAN8742A	Ethernet PHY interface for LAN8742A.
ST802RT1	Ethernet PHY interface for ST802RT1.

Multiple Driver Instances

CMSIS-Driver API supports multiple driver instances. The Ethernet drivers are implemented within a single C module and several driver instances of the same type can be used in a project as follows:

• Add the first driver instance to the project. In IDEs with CMSIS-pack management support this can be done from the Run-Time Environment (RTE).
• Create a copy of the driver's .c file with a different file name and add it to the project. This will be the second driver instance. For example, copy ETH_LAN9220.c file as ETH2_LAN9220.c.
• Copy the driver's .h file to the project or add the driver's folder to the compiler include search path.
• Specify the driver parameters for the second instance. For example, in ETH2_LAN9220.c new values to the following parameters are needed instead of default ones:

  #define ETH_MAC_NUM             1
  #define ETH_PHY_NUM             1
  #define LAN9220_BASE            (0x53000000UL)

• Now both Ethernet instances can be accessed from the application. For example:

  #include "Driver_ETH_MAC.h"
  #include "Driver_ETH_PHY.h"
   
  extern ARM_DRIVER_ETH_MAC Driver_ETH_MAC0;
  extern ARM_DRIVER_ETH_MAC Driver_ETH_MAC1;
   
  extern ARM_DRIVER_ETH_PHY Driver_ETH_PHY0;
  extern ARM_DRIVER_ETH_PHY Driver_ETH_PHY1;
   
  #define eth0    (&Driver_ETH_MAC0)
  #define eth1    (&Driver_ETH_MAC1)
   
  #define phy0    (&Driver_ETH_PHY0)
  #define phy1    (&Driver_ETH_PHY1)