Questions about freertos(ESP32-s3)

[juhua_yu]

Just started to contact ESP32 also please everyone Pointers.
I tried to create 3 tasks. But no matter how hard you try, there's always a task that's not being performed.
For example, the following code, why not print "sweetHomeTask", which is very confusing to me.
The default freertos configuration is used (idf.py menuconfig)

Code: [Select all] [Expand/Collapse]

1. #include <iostream>
2. #include "freertos/FreeRTOS.h"
3. #include "freertos/task.h"
4.  
5. #include "peripheral_init.h"
6. #include "SweetHome.h"
7. #include "mpu6050_driver.h"
8.  
9. #include <esp_system.h>
10.  
11. using namespace std;
12.  
13. static TaskHandle_t gyroTaskHandle;
14. static TaskHandle_t lifeSupportHandle;
15. static TaskHandle_t sweetHomeHandle;
16.  
17. // SemaphoreHandle_t lvglSemaphore = NULL;
18.  
19. static void gyroTask(void *pvParameters) {
20.     mpu6050_driver_init();
21.    
22.     for(;;) {
23.         mpu6050_driver_get_data();
24.         vTaskDelay(pdMS_TO_TICKS(20));
25.     }
26. }
27.  
28. static void sweetHomeTask(void *pvParameters) {
29.     printf("sweetHomeTask\n");
30.     for(;;) {
31.         vTaskDelay(pdMS_TO_TICKS(30));
32.         printf(">>>>>>>>>>>>>>>>>>>%d\n", xPortGetCoreID());
33.         // lv_timer_handler();
34.     }
35. }
36.  
37. static void lifeSupportTask(void *pvParameters) {
38.     xTaskCreate(sweetHomeTask, "sweetHome", 1024*50, NULL, 10, &sweetHomeHandle);
39.     for(;;) {
40.         vTaskDelay(pdMS_TO_TICKS(1000));
41.         // lv_timer_handler();
42.         lv_tick_inc(5);
43.         printf("================%d\n", xPortGetCoreID());
44.     }
45. }
46.  
47. extern "C" void app_main(void)
48. {
49.  
50.     peripheral_lcd_init();
51.  
52.     xTaskCreatePinnedToCore(gyroTask, "gyro", 1024*50, NULL, 5, &gyroTaskHandle, 1);
53.     xTaskCreatePinnedToCore(lifeSupportTask, "lifeSupport", 1024*50, NULL, 6, &lifeSupportHandle, 0);
54.    
55.    
56.     printf("end free heap: %ld\n", esp_get_free_heap_size()); // 8439892
57.  
58. }
59.  

GeSHi © Codebox Plus Extension

[ESP_Sprite]

Isn't it simply that you're missing the first bit of startup chatter and as such aren't seeing that printf?

[juhua_yu]

It feels like the sweetHomeTask is not being created
While trying to create a task like this in the app_main function, task1 runs normally on core 0, but task2 and task3 always run the previous one on core 1

Code: [Select all] [Expand/Collapse]

1. xTaskCreatePinnedToCore(&Task1, "Task1", 1024*50, NULL, configMAX_PRIORITIES, &task1Handle, 0);
2. xTaskCreate(&Task2, "Task2", 1024*50, NULL, configMAX_PRIORITIES, &task2Handle);
3. xTaskCreatePinnedToCore(&Task3, "Task3", 1024*50, NULL, configMAX_PRIORITIES, &task3Handle, 1);

GeSHi © Codebox Plus Extension

[ESP_Sprite]

Well, you can check that. xTaskCreate and friends give you a return code; you can check it to see if the task creation failed and why. You're simply throwing away those return codes in your code, though; I'd change that first.

[juhua_yu]

Thanks to you my friends, viewing the return value has been a great help. I have determined that the cause is a stack space allocation problem. But I have one more question.
The chip I use is ESP32-S3-WROOM-1U(N16R8), so how to check the size of DRAM and IRAM

[MicroController]

https://docs.espressif.com/projects/esp ... e8uint32_t

As a hint: Minimum permissible stack size for a task is about 1.5kb, default is about 3.5kb, which is enough for many tasks. 8-16kb is sufficient for almost all tasks if you don't use local variables/arrays excessively. Conversely, you may want to avoid using local variables/arrays of more than a few hundred bytes and consider using the heap for bigger things (buffers,...).