ETH Buffers setting

Defines
#define	ETH_MAX_PACKET_SIZE   1524U
#define	ETH_HEADER   14U
#define	ETH_CRC   4U
#define	ETH_EXTRA   2U
#define	ETH_VLAN_TAG   4U
#define	ETH_MIN_ETH_PAYLOAD   46U
#define	ETH_MAX_ETH_PAYLOAD   1500U
#define	ETH_JUMBO_FRAME_PAYLOAD   9000U

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Define Documentation

#define ETH_CRC   4U

Ethernet CRC

Definition at line 680 of file stm32f4xx_hal_eth.h.

#define ETH_EXTRA   2U

Extra bytes in some cases

Definition at line 681 of file stm32f4xx_hal_eth.h.

#define ETH_HEADER   14U

6 byte Dest addr, 6 byte Src addr, 2 byte length/type

Definition at line 679 of file stm32f4xx_hal_eth.h.

#define ETH_JUMBO_FRAME_PAYLOAD   9000U

Jumbo frame payload size

Definition at line 685 of file stm32f4xx_hal_eth.h.

#define ETH_MAX_ETH_PAYLOAD   1500U

Maximum Ethernet payload size

Definition at line 684 of file stm32f4xx_hal_eth.h.

#define ETH_MAX_PACKET_SIZE   1524U

ETH_HEADER + ETH_EXTRA + ETH_VLAN_TAG + ETH_MAX_ETH_PAYLOAD + ETH_CRC

Definition at line 678 of file stm32f4xx_hal_eth.h.

#define ETH_MIN_ETH_PAYLOAD   46U

Minimum Ethernet payload size

Definition at line 683 of file stm32f4xx_hal_eth.h.

#define ETH_VLAN_TAG   4U

optional 802.1q VLAN Tag

Definition at line 682 of file stm32f4xx_hal_eth.h.