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PIC32 PORTSetBits macro

Posted by Kristof Eykens on July 22, 2011
When using these peripheral macro's when initializing the board the instruction are executed. When I use theses macro's like PORTSetBits and PORTClearBits within a vTaskSupendAll code block. The motor are not started or stopped.
Am I missing some configuration?

RE: PIC32 PORTSetBits macro

Posted by Kristof Eykens on July 22, 2011
prototype of the task looks like this:

void vTaskCPanel(void *pvParameters)
{
char action;
portBASE_TYPE xStatus;
char isBusy = 0;
TaskType event;
unsigned int sensorValue;

datacontainer data;
pin_locationmotor;
pin_locationsensor;

motor.portId1 = IOPORT_F;
motor.bit1= BIT_0;
motor.portId2= IOPORT_F;
motor.bit2= BIT_1;

sensor.portId1 = IOPORT_B;
sensor.bit1= BIT_15;
sensor.portId2= IOPORT_D;
sensor.bit2= BIT_4;

data.motor = motor;
data.sensor = sensor;

for(;;)
{
// wait for action queue, to be filled by vTaskEthListener
if (isBusy == 0)
{
xStatus = xQueueReceive(xQueueCPanel, &action, portMAX_DELAY);
if ( xStatus == pdPASS)
{
isBusy = 1;
event = Start;
}
else
{
// TODO: send error
}
}

// handle action
switch (action)
{
case 0:
switch (event)
{
case Start:
vTaskSuspendAll();
{
PORTSetBits(IOPORT_F, BIT_0);
PORTClearBits(IOPORT_F, BIT_1);
}
xTaskResumeAll();

event = Running;
break;
case Running:
vTaskSuspendAll();
{
sensorValue = PORTReadBits(IOPORT_B, BIT_15);
if (sensorValue == 0)
{
InternalMotorStop(&motor);
event = Stopped;
}
}
xTaskResumeAll();

break;
case Stopped:
isBusy = 0;
break;
}
// TODO: read core timer to check for sensor errors

// Delay task
vTaskDelay(100/portTICK_RATE_MS);
break;
case 1:
switch (event)
{
case Start:
vTaskSuspendAll();
{
PORTSetBits(motor.portId2, motor.bit2);
PORTClearBits(motor.portId1, motor.bit1);
}
xTaskResumeAll();

event = Running;
break;
case Running:
vTaskSuspendAll();
{
sensorValue = PORTReadBits(sensor.portId2, sensor.bit2);
if (sensorValue == 0)
{
InternalMotorStop(&motor);
event = Stopped;
}
}
xTaskResumeAll();

break;
case Stopped:
isBusy = 0;
break;
}
// TODO: read core timer to check for sensor errors

// Delay task
vTaskDelay(100/portTICK_RATE_MS);
break;
}
}
}

RE: PIC32 PORTSetBits macro

Posted by Kristof Eykens on July 25, 2011
After rewriting the project with FreeRTOS, I forgot to enable the motor circuit...
Sorry for my stupidity!


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