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charan
Associate
August 11, 2020
Solved

Can somebody provide any tutorial to use the ethernet peripheral on STM32F439 to send raw ethernet frames with no lwIP involved .

  • August 11, 2020
  • 2 replies
  • 946 views

I am trying to learn ether net programming , but i find it very difficult to acquire resources online for ether net programming on stm32 .Please help me out

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Best answer by Tesla DeLorean

LwIP simply layers on top of the underlying transport code.

Look at how it dispatches frames.

Most of the HAL library is considered self-documenting

STM32Cube_FW_F4_V1.25.0\Drivers\STM32F4xx_HAL_Driver\Src\stm32f4xx_hal_eth.c

HAL_ETH_TransmitFrame()

STM32Cube_FW_F4_V1.25.0\Projects\STM324x9I_EVAL\Applications\LwIP\LwIP_IAP\Src\ethernetif.c

low_level_output(struct netif *netif, struct pbuf *p)

>>.. i find it very difficult to acquire resources online

Unfortunately support has no perceived value anymore..

2 replies

Tesla DeLorean
Tesla DeLoreanBest answer
Guru
August 11, 2020

LwIP simply layers on top of the underlying transport code.

Look at how it dispatches frames.

Most of the HAL library is considered self-documenting

STM32Cube_FW_F4_V1.25.0\Drivers\STM32F4xx_HAL_Driver\Src\stm32f4xx_hal_eth.c

HAL_ETH_TransmitFrame()

STM32Cube_FW_F4_V1.25.0\Projects\STM324x9I_EVAL\Applications\LwIP\LwIP_IAP\Src\ethernetif.c

low_level_output(struct netif *netif, struct pbuf *p)

>>.. i find it very difficult to acquire resources online

Unfortunately support has no perceived value anymore..

Tips, Buy me a coffee, or three.. PayPal Venmo (See Profile) Up vote any posts that you find helpful, it shows what's working..
Pavel A.
August 11, 2020

Find a ST eval. board which has LwIP examples in its Cube package. Pick an example, build it, run it.

When it works, throw LwIP out.

Also, get proper tools: wireshark or something better.

-- pa