vTaskList() for task status dump in FreeRTOS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare a buffer for vTaskList output.

FreeRTOS

char [1][512];

Drag options to blanks, or click blank then click option'

AtaskListBuffer

BstatusBuffer

CtaskStatus

Dbuffer

Attempts:

3 left

💡 Hint

Common Mistakes

Using an integer array instead of char array.

Not declaring a buffer at all.

The buffer taskListBuffer is declared to hold the task list output.

2fill in blank

medium

Complete the code to call vTaskList with the buffer.

FreeRTOS

vTaskList([1]);

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AstatusBuffer

BtaskListBuffer

CtaskStatus

Dbuffer

Attempts:

3 left

💡 Hint

Common Mistakes

Passing an uninitialized or wrong variable.

Passing a pointer to an integer instead of char array.

The function vTaskList requires a character buffer to write the task status list. Here, taskListBuffer is passed.

3fill in blank

hard

Fix the error in printing the task list buffer.

FreeRTOS

printf("[1]", taskListBuffer);

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A%s

B%d

C%f

D%c

Attempts:

3 left

💡 Hint

Common Mistakes

Using %d or %f which are for numbers.

Using %c which is for single characters.

The printf format specifier for strings is %s. Using %s correctly prints the task list buffer.

4fill in blank

hard

Fill both blanks to declare and initialize the buffer size for vTaskList.

FreeRTOS

char [1][[2]];

Drag options to blanks, or click blank then click option'

AtaskListBuffer

B512

C256

DstatusBuffer

Attempts:

3 left

💡 Hint

Common Mistakes

Using too small buffer size like 256.

Using generic names like 'buffer' or 'statusBuffer'.

The buffer taskListBuffer is declared with size 512 to hold the task list output safely.

5fill in blank

hard

Fill all three blanks to declare buffer, call vTaskList, and print the result.

FreeRTOS

char [1][[2]];
vTaskList([3]);
printf("%s", [3]);

Drag options to blanks, or click blank then click option'

AtaskListBuffer

B512

DstatusBuffer

Attempts:

3 left

💡 Hint

Common Mistakes

Using different variable names for buffer and printing.

Using incorrect buffer size.

The buffer taskListBuffer is declared with size 512. It is passed to vTaskList and then printed using printf.