Hi,
i am having problems with TouchGFX generated Project and LWIP/Ethernet
My Software setup:
STMCubeIDE Version: 1.9.0
TouchGFX Version: 4.19.1
STM32Cube_FW_H7_V1.10.0
My Hardware setup:
STM32H747I-DISCO
I have followed the steps in the ST-article How-to-create-project-for-STM32H7-with-Ethernet-and-LwIP-stack-working (can't add link) but can't ping the board. There is no Ethernet interrupt or RX callback, but GPIOs are set to high speed and ETH global interrupt is enabled and set to priorty 5 - preemption and 0 - subpriority.
Ping works in the attached example from the article, even when I migrate to the new H7-FW (after using the steps under 10. STM32Cube_FW_H7_V1.10.0 (and newer) specific issues).
I think there might be a problem with the MPU region, since I read somewhere that the M4 core is accessing the 0x30040000 with 0x10040000 and I have setup the same address there (sorry i am new to dualcore and mpu configs - see region 4 to 7 in my config). here is my config:
void MPU_Config(void)
{
MPU_Region_InitTypeDef MPU_InitStruct = {0};
/* Disables the MPU */
HAL_MPU_Disable();
/** Initializes and configures the Region and the memory to be protected
*/
MPU_InitStruct.Enable = MPU_REGION_ENABLE;
MPU_InitStruct.Number = MPU_REGION_NUMBER0;
MPU_InitStruct.BaseAddress = 0x90000000;
MPU_InitStruct.Size = MPU_REGION_SIZE_256MB;
MPU_InitStruct.SubRegionDisable = 0x0;
MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
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);
/** Initializes and configures the Region and the memory to be protected
*/
MPU_InitStruct.Number = MPU_REGION_NUMBER1;
MPU_InitStruct.Size = MPU_REGION_SIZE_128MB;
HAL_MPU_ConfigRegion(&MPU_InitStruct);
/** Initializes and configures the Region and the memory to be protected
*/
MPU_InitStruct.Number = MPU_REGION_NUMBER2;
MPU_InitStruct.BaseAddress = 0xD0000000;
MPU_InitStruct.Size = MPU_REGION_SIZE_32MB;
MPU_InitStruct.IsCacheable = MPU_ACCESS_CACHEABLE;
HAL_MPU_ConfigRegion(&MPU_InitStruct);
/** Initializes and configures the Region and the memory to be protected
*/
MPU_InitStruct.Number = MPU_REGION_NUMBER3;
MPU_InitStruct.BaseAddress = 0x24000000;
MPU_InitStruct.Size = MPU_REGION_SIZE_512KB;
MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_ENABLE;
HAL_MPU_ConfigRegion(&MPU_InitStruct);
/** Initializes and configures the Region and the memory to be protected
*/
MPU_InitStruct.Number = MPU_REGION_NUMBER4;
MPU_InitStruct.BaseAddress = 0x10000000;
MPU_InitStruct.Size = MPU_REGION_SIZE_256KB;
HAL_MPU_ConfigRegion(&MPU_InitStruct);
/** Initializes and configures the Region and the memory to be protected
*/
MPU_InitStruct.Number = MPU_REGION_NUMBER5;
MPU_InitStruct.BaseAddress = 0x10040000;
MPU_InitStruct.Size = MPU_REGION_SIZE_32KB;
MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE;
HAL_MPU_ConfigRegion(&MPU_InitStruct);
/** Initializes and configures the Region and the memory to be protected
*/
MPU_InitStruct.Number = MPU_REGION_NUMBER6;
MPU_InitStruct.BaseAddress = 0x30040000;
MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL1;
MPU_InitStruct.AccessPermission = MPU_REGION_NO_ACCESS;
MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;
HAL_MPU_ConfigRegion(&MPU_InitStruct);
/** Initializes and configures the Region and the memory to be protected
*/
MPU_InitStruct.Number = MPU_REGION_NUMBER7;
MPU_InitStruct.Size = MPU_REGION_SIZE_256B;
MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
MPU_InitStruct.IsShareable = MPU_ACCESS_SHAREABLE;
MPU_InitStruct.IsBufferable = MPU_ACCESS_BUFFERABLE;
HAL_MPU_ConfigRegion(&MPU_InitStruct);
/* Enables the MPU */
HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);
}Another clue I got is this: in the ethernetif.h there is this complete section grayes out, but i am using the GNU Compiler:
#if defined ( __ICCARM__ ) /*!< IAR Compiler */
#pragma location = 0x30000260
extern u8_t memp_memory_RX_POOL_base[];
#elif defined ( __CC_ARM ) /* MDK ARM Compiler */
__attribute__((at(0x30000260)) extern u8_t memp_memory_RX_POOL_base[];
#elif defined ( __GNUC__ ) /* GNU Compiler */
__attribute__((section(".Rx_PoolSection"))) extern u8_t memp_memory_RX_POOL_base[];
#endifSo I think the problem could be the structure of the TouchGFX generated Project.
On the left is the TouchGFX generated Project, which links only some files to the CM7 Subproject and on the right is the example project which has the files directly included in the CM7 subproject
Thank you for any help and hints!
1. In the linker file .._FLASH.ld I already had added the .lwip section:
.lwip_sec (NOLOAD):
{
. = ABSOLUTE(0x30040000);
*(.RxDescripSection)
. = ABSOLUTE(0x30040060);
*(.TxDescripSection)
. = ABSOLUTE(0x30040200);
*(.Rx_PoolSection)
} > RAM_D22. in ethernetif.c DMARxDscrTab[] and DMATxDscrTab[] arrays also seem to be inactive. So I think this could be the error. I noticed before that some defines can't be found because only c files are linked into the project.
3. in main.c these are the regions I had added. Access Permission was set to ALL ACCESS NOT PERMITTED. I changed it, but still can't ping the board.
Rebuilding the index does not solve the problem. I checked the comiler flag: it is set to __GNUC__ in the project, but the ethernetif.h and .c files are not linked in the project. They are located in the CM7/LWIP/Target/ folder and the STM32H747I-DISCO_CM7 Project has only linked the LwIP files from the Middlewares/Third_Party/LwIP/ folder.
Any advice whats the best way to handle the TouchGFX generated Project? I think it is very unhandy that only some files get linked to the project. For example defines in main.h are not known to files in the project which include main.h. Do I have to add new .c and .h files in the CM7/Core/ folder and link them to the project?
Here is my project structure:
