TouchGfx and LWIP Implemention on STM32H750DK

[PushparajAdka]

Hey Team,

I want to make LWIP and TouchGfx to work together for our next product. I have taken reference from here:

https://community.st.com/t5/stm32-mcus/how-to-create-a-project-for-stm32h7-with-ethernet-and-lwip-stack/ta-p/49308

1. Touchgfx is working as expected

2. I am not able to ping using etherenet. I am not sure the issue here.

Please let me know what needs to be done here.

Thanks.

(Reposting this question as my previous post closed by mistake)

[PushparajAdka]

Hey Team,

   I want to make LWIP and TouchGfx to work together for our next product. I have taken reference from here:

https://community.st.com/t5/stm32-mcus/how-to-create-a-project-for-stm32h7-with-ethernet-and-lwip-stack/ta-p/49308

1. Touchgfx is working as expected

2. I am not able to ping using etherenet. I am not sure the issue here. 

Please let me know what needs to be done here.

Thanks 

[jumman_JHINGA]

@PushparajAdka  does  you board supports Ethernet MII interface? if not then try RMII interface, and double check your CubeMx Pin mapping with yours board data sheet/ schematic.

if your board supports MII then check this ioc file. i have made some changes in yours ioc file.

[MOBEJ]

Hello @PushparajAdka ,

Did you try the example from the STM32H7-LwIP-Examples repository for the STM32H750 Discovery Ethernet? You can find it here:
https://github.com/stm32-hotspot/STM32H7-LwIP-Examples/tree/main/STM32H750_Disco_ETH

Br

[PushparajAdka]

Hey ,

   Yes i took this example as reference and made it work for the first time. Now I am using touchgfx and Ethernet combined and it is giving me trouble. I really do not know why it is failing,

[PushparajAdka]

I am not able to share the entire project due to size issues. Let me know if you want to verify any certain configuration.

[PushparajAdka]

The given examples are separate code and they do work. But my issue is combined code with touchgfx. 

[PushparajAdka]

Could you please provide some support? Otherwise I may have to stop using STM and move on to some other devices as I have to confirm the working of the device asap.

[Saket_Om]

Hello @PushparajAdka 

What tests/investigations/debugging have you done to find out what's going on?

[PushparajAdka]

Hey Saket,

    I have made MPU configurations and Initialized LWIP as static config. Let me share all my observations.

1. Code starts and reaches till LWIP Init. Inside that tcp_init does not get executed.
2.  I have display code running and that works without any issue. 
3. My goal is to send display slider value over a UDP message.
4. Right now i stuck at the point that LWIP is not initialized.

MPU for LWIP heap:

*/

MPU_InitStruct.Enable = MPU_REGION_ENABLE;

MPU_InitStruct.Number = MPU_REGION_NUMBER0;

MPU_InitStruct.BaseAddress = 0x30020000;

MPU_InitStruct.Size = MPU_REGION_SIZE_128KB;

MPU_InitStruct.SubRegionDisable = 0x0;

MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL1;

MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;

MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE;

MPU_InitStruct.IsShareable = MPU_ACCESS_NOT_SHAREABLE;

MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;

MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;

HAL_MPU_ConfigRegion(&MPU_InitStruct);

MPU for Eth Buffers:  

/** Initializes and configures the Region and the memory to be protected

*/

MPU_InitStruct.Number = MPU_REGION_NUMBER5;

MPU_InitStruct.BaseAddress = 0x30040000;

MPU_InitStruct.Size = MPU_REGION_SIZE_32KB;

MPU_InitStruct.IsShareable = MPU_ACCESS_SHAREABLE;

MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;

MPU_InitStruct.IsBufferable = MPU_ACCESS_BUFFERABLE;

HAL_MPU_ConfigRegion(&MPU_InitStruct);

/* Enables the MPU */

HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);

Flash:

/* Modification start */

.lwip_sec (NOLOAD) :

{

. = ABSOLUTE(0x30040000);

*(.RxDecripSection)



. = ABSOLUTE(0x30040100);

*(.TxDecripSection)



. = ABSOLUTE(0x30040200);

*(.Rx_PoolSection)

} >RAM_D2

/* Modification end */

etherenetif.c

static uint8_t RxAllocStatus;

#if defined ( __ICCARM__ ) /*!< IAR Compiler */

#pragma location=0x30040000

ETH_DMADescTypeDef DMARxDscrTab[ETH_RX_DESC_CNT]; /* Ethernet Rx DMA Descriptors */

#pragma location=0x30040100

ETH_DMADescTypeDef DMATxDscrTab[ETH_TX_DESC_CNT]; /* Ethernet Tx DMA Descriptors */

#elif defined ( __CC_ARM ) /* MDK ARM Compiler */

__attribute__((at(0x30040000))) ETH_DMADescTypeDef DMARxDscrTab[ETH_RX_DESC_CNT]; /* Ethernet Rx DMA Descriptors */

__attribute__((at(0x30040100))) ETH_DMADescTypeDef DMATxDscrTab[ETH_TX_DESC_CNT]; /* Ethernet Tx DMA Descriptors */

#elif defined ( __GNUC__ ) /* GNU Compiler */

ETH_DMADescTypeDef DMARxDscrTab[ETH_RX_DESC_CNT] __attribute__((section(".RxDecripSection"))); /* Ethernet Rx DMA Descriptors */

ETH_DMADescTypeDef DMATxDscrTab[ETH_TX_DESC_CNT] __attribute__((section(".TxDecripSection"))); /* Ethernet Tx DMA Descriptors */

#endif

#if defined ( __ICCARM__ ) /*!< IAR Compiler */

#pragma location = 0x30040200

extern u8_t memp_memory_RX_POOL_base[];

#elif defined ( __CC_ARM ) /* MDK ARM Compiler */

__attribute__((section(".Rx_PoolSection"))) extern u8_t memp_memory_RX_POOL_base[];

#elif defined ( __GNUC__ ) /* GNU */

__attribute__((section(".Rx_PoolSection"))) extern u8_t memp_memory_RX_POOL_base[];

#endif

/

* USER CODE END Header_StartDefaultTask */

void StartDefaultTask(void *argument)

{

/* init code for LWIP */

printf("LWIP Started!\r\n");

MX_LWIP_Init();

printf("LWIP Working !\r\n");

/* USER CODE BEGIN 5 */

/* Infinite loop */

for(;;)

{

osDelay(100);

}

/* USER CODE END 5 */

}

Please let me know if you need anymore details. I am not understanding why code does not initialize LWIP