Code for Task RT-2. More...

#include <Arduino_FreeRTOS.h>

Macros
#define	Note_D4 3400
	294Hz frequeny to play More...

#define	Note_E4 3038
	329Hz frequency to play More...

#define	Note_C4 3830
	261Hz frequency to play More...

#define	Note_C3 7692
	130Hz frequency to play More...

#define	Note_G3 5102
	196Hz frequencys to play More...

#define	Note_R 0
	slience frequency More...

#define	SOUND_DUR 500
	define the duration for each note/sound the speaker play More...

#define	SLEEP_DUR 3000UL
	define sleep time More...

#define	REPEAT_TIMES 3
	Numbers of times to repeat the tune. More...

Functions
void	TaskTheme (void *pvParameters)
	Play "Close Encounters" on an external speaker Three times. More...

void	setup ()
	Funciton to setup RtOS tasks. More...

void	loop ()
	loop though different funcitons, not in use for this lab More...

Variables
int	melody [] = { Note_D4, Note_R, Note_E4, Note_R, Note_C4, Note_R, Note_C3, Note_R, Note_G3, Note_R }
	the "Close Encounter" tune going to play More...

int	tuneLen = sizeof(melody) / 2
	define tune array length More...

Detailed Description

Code for Task RT-2.

Author: Fusco Li, Eric Yu

Date: 10-June-2022

The program to use FreeRTOS library to play "Close Encounters" theme song

Macro Definition Documentation

◆ Note_C3

#define Note_C3 7692

130Hz frequency to play

◆ Note_C4

#define Note_C4 3830

261Hz frequency to play

◆ Note_D4

#define Note_D4 3400

294Hz frequeny to play

◆ Note_E4

#define Note_E4 3038

329Hz frequency to play

◆ Note_G3

#define Note_G3 5102

196Hz frequencys to play

◆ Note_R

#define Note_R 0

slience frequency

◆ REPEAT_TIMES

#define REPEAT_TIMES 3

Numbers of times to repeat the tune.

◆ SLEEP_DUR

#define SLEEP_DUR 3000UL

define sleep time

◆ SOUND_DUR

#define SOUND_DUR 500

define the duration for each note/sound the speaker play

Function Documentation

◆ loop()

void loop ( )

loop though different funcitons, not in use for this lab

This program uses RTOS so this function is not in use. Things are done in Tasks.

◆ setup()

void setup ( )

Funciton to setup RtOS tasks.

Setup serial communication method and creat RTOS tasks. Set the priority of each task as well as its size.

◆ TaskTheme()

void TaskTheme ( void * pvParameters )

Play "Close Encounters" on an external speaker Three times.

First it setup the registers and timers for the speaker. Then loop thought the task three times. Within the loop there is another for loop that increment through melody array to use the correct note freqencies to play sounds. Use vTaskDelay to wait in between notes and songs. Use vTaskSuspend to stop the task.

Parameters

pvParameters parameters that FreeRTOS can pass in

Variable Documentation

◆ melody

int melody[] = { Note_D4, Note_R, Note_E4, Note_R, Note_C4, Note_R, Note_C3, Note_R, Note_G3, Note_R }

the "Close Encounter" tune going to play

◆ tuneLen

int tuneLen = sizeof(melody) / 2

define tune array length

Macros

Functions

Variables