I was trying to learn about freeRtos but I've encountered a problem so I've decided to put up a program.
I am using platform IO
What I intend to do is this:
- We have 2 one-shot timers (I actually wanted to use more but tried with 2 after trying with 1)
- I wanted to define them as static.
- We have an eventhandler to specify when they should work (state = 1 for timer 1, state = 2 for timer 2)
- I want these timers to be stoppable at anytime (even if it doesn't reach the callback function) from another program
If I don't include the 2nd timer, the code works fine but when I include it some sort of problem occur
And also I haven't been able to use TaskScheduler the program always crashes.
Would be grateful if anybody guided me though this, thanks in advance.
What I've done so far is like below:
Code: Untitled.c Select all
#include <Arduino.h>
#include "freertos/queue.h"
#include "freertos/task.h"
#include "freertos/timers.h"
// The buffer used to hold the software timer's data structure.
// Defining one second in ticks of time
#define pdSECOND pdMS_TO_TICKS(1000)
#define staticDONT_BLOCK ( ( TickType_t ) 0 )
bool progState = 0;
bool relay1Control = 0;
uint8_t state = 0;
int j = 0;
int k = 0;
static StaticTimer_t xTimerBuffer1;
static StaticTimer_t xTimerBuffer2;
// Define a timer handle
TimerHandle_t progTimer1;
TimerHandle_t progTimer2;
StackType_t progTimer1Started;
StackType_t progTimer2Started;
TickType_t remainingTime1;
TickType_t remainingTime2;
TickType_t remTimeDisplay1;
TickType_t remTimeDisplay2;
// The callback function upon timer exit
void progTimerCallBack1( TimerHandle_t progTimer1)
{
xTimerStop(progTimer1, 0);
Serial.println("Timer 1 has Ended");
progState = 0;
relay1Control = 0;
state = 0; // If the callback function is called, the timer has ended, state should return to neutral
j = 0;
}
// The callback function upon timer exit
void progTimerCallBack2( TimerHandle_t progTimer2)
{
xTimerStop(progTimer2, 0);
Serial.println("Timer 2 has Ended");
progState = 0;
relay1Control = 0;
state = 0; // If the callback function is called, the timer has ended, state should return to neutral
j = 0;
}
// The event handler for timer start
void progTimerEventHandler(uint8_t state)
{
// State == 1 conditions
if (state == 1)
{
if (progState == 0)
{
if( progTimer1 != NULL ) // If the timer has been created
{
progTimer1Started = xTimerStart(progTimer1, 10); // Starts the timer
Serial.println("The Timer 1 has been issued");
remTimeDisplay1 = ((xTimerGetExpiryTime(progTimer1) - xTaskGetTickCount())/pdSECOND);
}
if (progTimer1Started == pdPASS)
{
progState = 1;
Serial.println("Prog 1 Timer has been scheduled !");
}
}
if (progState != 0)
{
remainingTime1 = ((xTimerGetExpiryTime(progTimer1) - xTaskGetTickCount())/pdSECOND);
if (remTimeDisplay1 != remainingTime1)
{
remTimeDisplay1 = remainingTime1;
Serial.print("Time Remaining: ");
Serial.println((int)remainingTime1 + 1);
}
}
}
// State == 2 conditions
if (state == 2)
{
if (progState == 0)
{
if( progTimer2 != NULL ) // If the timer has been created
{
progTimer2Started = xTimerStart(progTimer2, 10); // Starts the timer
Serial.println("The Timer has been issued");
remTimeDisplay2 = ((xTimerGetExpiryTime(progTimer2) - xTaskGetTickCount())/pdSECOND);
}
if (progTimer2Started == pdPASS)
{
progState = 1;
Serial.println("Prog 2 Timer has been scheduled !");
}
}
if (progState != 0)
{
remainingTime2 = ((xTimerGetExpiryTime(progTimer2) - xTaskGetTickCount())/pdSECOND);
if (remTimeDisplay2 != remainingTime2)
{
remTimeDisplay2 = remainingTime2;
Serial.print("Time Remaining: ");
Serial.println((int)remainingTime2 + 1);
}
}
}
if (state == 0) {progState = 0;}
if (state != 1 && progTimer1Started == pdPASS)
{ xTimerStop(progTimer1, 100); progState = 0;}
if (state != 2 && progTimer2Started == pdPASS)
{ xTimerStop(progTimer2, 100); progState = 0;}
}
// Timer with the the time info given by seconds
void progTimerSet(uint16_t time1, uint16_t time2)
{
progTimer1 = xTimerCreateStatic("progTimer1", // Text name
(pdSECOND * (time1)), // Timer period converted from ticks to seconds
pdFALSE, // State that the timer is one-shot
(void*) 1, // ID of the timer
progTimerCallBack1, // The callback func upon exit
&xTimerBuffer1 // The buffer that will hold software timer
);
Serial.println("The initialiser of the software timer 1");
progTimer2 = xTimerCreateStatic("progTimer2", // Text name
(pdSECOND * (time2)), // Timer period converted from ticks to seconds
pdFALSE, // State that the timer is one-shot
(void*) 2, // ID of the timer
progTimerCallBack2, // The callback func upon exit
&xTimerBuffer2 // The buffer that will hold software timer
);
Serial.println("The initialiser of the software timer 2");
}[/code]
and the main file is as follows:
[Codebox=cpp file=Untitled.cpp] #include <Arduino.h>
#include "DMD_initializer.h"
#include "programTimers.h"
uint16_t timeVacuum = 14;
uint16_t timeAir = 10;
uint8_t relay1Pin = 2;
void setup() {
while (!Serial){}
Serial.begin(115200);
pinMode(relay1Pin, OUTPUT);
// DmdTimeStart();
progTimerSet(timeVacuum, timeAir); // Setting up the FreeRtos Software Timers
}
void loop() {
if (state == 1 || state == 2) {relay1Control = 1; digitalWrite(relay1Pin, HIGH);}
else if (state == 0) {relay1Control = 0; digitalWrite(relay1Pin, LOW);}
if (state == 0)
{
vTaskDelay(pdSECOND);
Serial.print ("j: ");
Serial.print (j);
Serial.print (" ,progstate: ");
Serial.print (progState);
Serial.print (" ,state: ");
Serial.println (state);
j++;
k++;
}
if (j == 5)
{
j++;
Serial.print ("j: ");
Serial.print (j);
Serial.print ("k: ");
Serial.print (k);
state = 2;
}
if (k == 7)
{
j++;
Serial.print ("j: ");
Serial.print (j);
k++;
Serial.print ("k: ");
Serial.print (k);
state = 1;
}
progTimerEventHandler(state);
}
