SYS MONITOR

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1. Overview

The SDK built-in component system monitoring is a particularly important component in the system. It is responsible for monitoring and controlling every task that is added to the monitoring queue, in case of any exception to a task, and to avoid losses caused by failure to handle exceptions in a timely manner. This component is based on the hardware watchdog, and on this basis, it realizes the monitoring strategy of monitoring multiple tasks at the same time to ensure the normal and stable operation of the system.

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2. Source file

File name	Description
ci110x_ task_ monitor. C	Specific implementation
ci110x_ task_ monitor. H	User API

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3. Flow Chart

Figure 3-1 Flowchart

• The related macro configuration is described as follows:

/*The maximum number of monitoring tasks is 23*/
#define MONITOR_ TAST_ MAX_ COUNT (23)/* Range: 0 - 23 Reasonable setting according to the actual situation*/
/*Monitoring cycle (unit: MS)*/
#define MONITOR_ PERIOD (1000)

• Relevant API interfaces are as follows:

Function	Description
monitor_ Create	Monitoring event group creation function
join_ Monitor	Add monitoring functions to tasks
exit_ Monitor	Task exit monitoring
task_ alive	Monitored task reporting function
task_ Monitor	Monitoring task function

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4. Example:

#include "ci110x_task_monitor.h"

uint8_ t vTask_ test1_ id,vTask_ test2_ id,vTask_ test3_ id;

void vTask_ test1(void *pvParameters)
{
int count = 0;
for(;;)
{
vTaskDelay(pdMS_TO_TICKS(500));
count++;
task_ alive(vTask_test1_id);
}
}

void vTask_ test2(void *pvParameters)
{
int count = 0;
for(;;)
{
vTaskDelay(pdMS_TO_TICKS(4000));
count++;
task_ alive(vTask_test2_id);
}
}

void vTask_ test3(void *pvParameters)
{
int count = 0;
for(;;)
{
vTaskDelay(pdMS_TO_TICKS(12000));
count++;
task_ alive(vTask_test3_id);
}
}

void call_ back(void)
{
mprintf("call back func\n");
}

void iwdg_ test(void)
{
monitor_ creat(call_back);

TaskHandle_ t task1_ handle = NULL,task2_ handle = NULL,task3_ handle = NULL;

xTaskCreate(vTask_test1,"vTask_test1",256,NULL,1,&task1_handle);
join_ monitor(&vTask_test1_id,1000,task1_handle);

xTaskCreate(vTask_test2,"vTask_test2",256,NULL,2,&task2_handle);
join_ monitor(&vTask_test2_id,5000,task2_handle);

xTaskCreate(vTask_test3,"vTask_test3",256,NULL,3,&task3_handle);
join_ monitor(&vTask_test3_id,10000,task3_handle);

xTaskCreate(task_monitor,"task_monitor",256,NULL,4,NULL);
}