CubeMX what are expected steps for F767ZIT for FreeRTOS+LwIP+ETH ?

[Sebastian Gniazdowski]

Posted on March 24, 2018 at 02:19

I enable Ethernet in RMII mode, tried PHY address 0 and 1, Ienable FreeRTOS, automatically configure clock, etc. I set breakpoints (SW4STM32) and program waits in lwip's 'accept' function, the one that waits for connection. So it looks like some problem with ETH configuration, as I should see the board under local IP, I point browser to port 80, etc. (I'm using simple http server code from here:

https://www.carminenoviello.com/2016/01/22/getting-started-stm32-nucleo-f746zg/

).

I just want few basic directions on this. Otherwise I doubt if I receive answer. I'm sure my actions are close to correct, I just need to catch some wrong action, probably on ETH hardware.

Best regards,

Sebastian

#freertos+tcp

[Joerg Wagner]

Posted on March 25, 2018 at 00:43

Use more heap space (the example uses 128 only, it's not enough).

I would recommend at least the size like you find in ST example code in file

~/STM32Cube/Repository/STM32Cube_FW_F7_V1.11.0/Projects/STM32F767ZI-Nucleo/Applications/LwIP/LwIP_HTTP_Server_Netconn_RTOS/Src/main.c:

#if defined(__GNUC__)

  osThreadDef(Start, StartThread, osPriorityNormal, 0, configMINIMAL_STACK_SIZE * 5);

#else

...

I would recommend 1024 at least when you want to do more in the thread.

Do not forget to verify the total heap space in FreeRTOS settings.

[Sebastian Gniazdowski]

Posted on March 26, 2018 at 07:15

Thanks for pointers about heap size. It wasn't the direct cause, however, I managed to catch minimal changes needed to CubeMX generated project in order to make the board respond to ping and serve on port 80. It's GPIO initialization! Original CubeMX code:

void HAL_ETH_MspInit(ETH_HandleTypeDef* ethHandle)

{

  GPIO_InitTypeDef GPIO_InitStruct;

  if(ethHandle->Instance==ETH)

  {

  /* USER CODE BEGIN ETH_MspInit 0 */

  /* USER CODE END ETH_MspInit 0 */

    /* Enable Peripheral clock */

    __HAL_RCC_ETH_CLK_ENABLE();

 

    /**ETH GPIO Configuration    

    PC1     ------> ETH_MDC

    PA1     ------> ETH_REF_CLK

    PA2     ------> ETH_MDIO

    PA7     ------> ETH_CRS_DV

    PC4     ------> ETH_RXD0

    PC5     ------> ETH_RXD1

    PB11     ------> ETH_TX_EN

    PB12     ------> ETH_TXD0

    PB13     ------> ETH_TXD1

    */

    GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5;

    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;

    GPIO_InitStruct.Pull = GPIO_NOPULL;

    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;

    GPIO_InitStruct.Alternate = GPIO_AF11_ETH;

    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_7;

    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;

    GPIO_InitStruct.Pull = GPIO_NOPULL;

    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;

    GPIO_InitStruct.Alternate = GPIO_AF11_ETH;

    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13;

    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;

    GPIO_InitStruct.Pull = GPIO_NOPULL;

    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;

    GPIO_InitStruct.Alternate = GPIO_AF11_ETH;

    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

    /* Peripheral interrupt init */

    HAL_NVIC_SetPriority(ETH_IRQn, 5, 0);

    HAL_NVIC_EnableIRQ(ETH_IRQn);

  /* USER CODE BEGIN ETH_MspInit 1 */

    __HAL_RCC_ETH_CLK_ENABLE();

    /* Output HSE clock (25MHz) on MCO pin (PA8) to clock the PHY */

    HAL_RCC_MCOConfig(RCC_MCO1, RCC_MCO1SOURCE_PLLCLK, RCC_MCODIV_4);

  /* USER CODE END ETH_MspInit 1 */

  }

}

First change:

    GPIO_InitStruct.Pin = GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13;

into:

    GPIO_InitStruct.Pin = GPIO_PIN_13;

Second change: add GPIOG configuration:

    /* Configure PG2, PG11, PG13 and PG14 */

    GPIO_InitStruct.Pin =  GPIO_PIN_2 | GPIO_PIN_11 | GPIO_PIN_13;

    HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);

Then also add __HAL_RCC_GPIOG_CLK_ENABLE() into MX_GPIO_Init().

Could someone explain those changes? The comment on GPIO config in `Applications/...` example matches the one generated by CubeMX, but the code differs, as it is shown (above changes makes CubeMX code match the `Applications/...` one).

[Joerg Wagner]

Posted on March 26, 2018 at 08:31

Are you using the latest CubeMX 4.25 with FW_F7_V1.11.0 ?