Hi Dialog,
Failed to allocate memory after integrating algorithm library。
Our algorithm only need total ram 9kBytes(data 1.5k bss 7.5k).
After setting the following two parameters, the issue still exists: Malloc fail.
- Set theconfigTOTAL_HEAP_SIZE from 11200 to25*1024.
- When OS_TASK_CREATE, set stack from 756 to 1024*22.
I attached my analysis, pls help me check more.
Thanks.
Attachment:
Device:
Hi xuguodong,
The vApplicationMallocFailedHook() is a hook to the FreeRTOS. This hoot notifies the application when there is not enough continuous heap available for the attempted memory allocation. I would recommend increasing the size of the FreeRTOS heap (configTOTAL_HEAP_SIZE in custom_config_XXXX.h file) to the max number the code compiles.
Thanks, PM_Dialog
Hi Dialog,
what is the max size of the FreeRTOS heap (configTOTAL_HEAP_SIZE)?
what is the max size of task stack size ?
Thanks.
Hi xuguodong,
You could use heap size as big as you want. If the system is running out of RAM, the linker will issue an error. Please refer tohttps://freertos.org/for more information on FreeRTOS.
Thanks, PM_Dialog
Hi Dialog,
Set task stack size to >1024*10, error: Failed to allocate memory will occur.
Thanks.
Hi xuguodong,
Can you please attach a screenshot? What is the configTOTAL_HEAP_SIZE that you are using?
Thanks, PM_Dialog
As follow, if task stack > 10*1024, memory failed to allocate.
/*************************************************************************************************\
* Memory specific config
*/
#德fine dg_configQSPI_CACHED_OPTIMAL_RETRAM_0_SIZE_AE ( 64 * 1024)
#德fine dg_configQSPI_CACHED_RAM_SIZE_AE ( 32 * 1024)
#德fine dg_configQSPI_CACHED_RETRAM_0_SIZE_AE ( 96 * 1024)
#德fine dg_configQSPI_CACHED_RAM_SIZE ( 56 * 1024)
#德fine dg_configQSPI_CACHED_RETRAM_0_SIZE ( 72 * 1024)
#德fine dg_configQSPI_CODE_SIZE ( 256 * 1024)
OS_TASK_CREATE("PXP Reporter", /* The text name assigned to the task, for
debug only; not used by the kernel. */
pxp_reporter_task, /* The function that implements the task. */
NULL, /* The parameter passed to the task. */
#if (dg_configDISABLE_BACKGROUND_FLASH_OPS == 1)
512年,/ *分配的字节数
stack of the task. */
#else
#if ZSENS_FUSION_ALGO
1024*10, /* The number of bytes to allocate to the
stack of the task. */
#else
756,
#endif
#endif
/*************************************************************************************************\
* Memory specific config
*/
#德fine dg_configQSPI_CACHED_OPTIMAL_RETRAM_0_SIZE_AE ( 64 * 1024)
#德fine dg_configQSPI_CACHED_RAM_SIZE_AE ( 32 * 1024)
#德fine dg_configQSPI_CACHED_RETRAM_0_SIZE_AE ( 96 * 1024)
#德fine dg_configQSPI_CACHED_RAM_SIZE ( 56 * 1024)
#德fine dg_configQSPI_CACHED_RETRAM_0_SIZE ( 72 * 1024)
#德fine dg_configQSPI_CODE_SIZE ( 256 * 1024)
/*************************************************************************************************\
* FreeRTOS specific config
*/
#德fine OS_FREERTOS /* Define this to use FreeRTOS */
#if (dg_configUSE_SOC)
#if defined(DEBUG_SOC)
#德fine configTOTAL_HEAP_SIZE 12300 /* This is the FreeRTOS Total Heap Size */
#else
// #define configTOTAL_HEAP_SIZE 11200 /* This is the FreeRTOS Total Heap Size */
#德fine configTOTAL_HEAP_SIZE 20*1024 /* This is the FreeRTOS Total Heap Size */
#endif
#else
#德fine configTOTAL_HEAP_SIZE 11000 /* This is the FreeRTOS Total Heap Size */
#endif
Hi xuguodong,
Does the system still run out of heap?
Thanks, PM_Dialog