FreeRTOSQueue EXAMPLE

DESCRIPTION

This is a FreeRTOS queue demo applciation which creates:

• 2 Tasks
• 2 Queues

Task A: Task A is implemented by the doInputOutputTask() function in this file. It reads the console input and echoes every character back. Meanwhile monitors if "delay X\n" received in the console input where X must be a digit. When detected extracts the number and sends that number to Queue 1 (delay Queue). If delay command received without a number following it is not submitted to queue and an ERROR is printed. Also monitors Queue 2 (Message Queue) and prints everything received to console output.

Task B: The queue receive task is implemented by the updateDelayTask() function in this file. updateDelayTask() waits for data to arrive on the queue 1 (delay queue). It keeps a local task delay rate variable and when data is received, extracts the number from the queue and updates its local task delay rate. This delay rates adds a wait to the task in milliseconds. In addition sends "Delayed by: X" String back to TASK A using Queue 2(Message Queue).

ENVIRONMENT

Developed and Tested using following configuration:

-Intel 5820k -Ubuntu 20.04.4 LTS 5.15.0-52 Kernel -gcc 9.4.0 -FreeRTOS Linux Simulator

BUILD INSTRUCTIONS

1. Download and install FreeRTOS as described in FreeRTOS Linux Simulator instructions
2. Clone the repository
3. Update Makefile variable FREERTOS_DIR_REL to point to local FreeRTOS root directory (Where Source folder is located).
4. Inside repository root directory run make.
5. To run the application :

$REPO_ROOT/cd build

$REPO_ROOT/build/queue_demo