when I load this onto my board, I get a pinmap not found for peripheral error. I did some research on this problem (One of the pages I visited) and I think I understand the problem, however the pins I'm using all support exactly what I'm asking them to do. This problem has only arisen since I converted my code from procedural to object orientated (I need to do this to implement scheduling properly).
I have a feeling it's to do with how I'm initializing them in the constructor member initialiser list as i don't fully understand how it works (I'm fairly new to C++).
there are other classes to my program however they follow the same structure as my UpdateOutput class.
Thanks in advance for any advice.
int main() {
printf("inside main");
DigitalOut led1(LED1);
AnalogOut Vout(A0);
UpdateOutput wave;
SensorData inputs;
Timer time;
enum waves {OFF = 0, SINE, TRIANGLE, SAW, SQUARE};
int waveType = OFF;
float sonarCorrection = inputs.calibrateSonar();//makes a measurement of the acatual run time of the sonar code
float topFrequency = 1047.0f; //the highest frequency the synth will play
float upperSonarThreshold = 1000.0f; //the furthest distance the sonar will register
float lowerSonarThreshold = 100.0f; //the closest distance the sonar will measure
float period = 2272.73f;
//replace with:
//float period = inputs.getFrequency(float lowerThreshold, float upperThreshold, int correction, float topFrequency);
//after bug fixes have been applied
led1 = 1; //turn on led1 to show code is running properly
time.reset();
time.start();
int tmr = time.read_us();
//test loop before thredding is applied
while(true)
{
waveType = SINE; //keep synth producing a sine wave for testing
tmr = time.read_us();
switch(waveType)
{
case OFF:
Vout = 0.0f;
break;
case SINE:
Vout = wave.sinWave(tmr , period);
break;
case TRIANGLE:
Vout = wave.triangleWave(tmr , period);
break;
case SAW:
Vout = wave.sawWave(tmr, period);
break;
case SQUARE:
Vout = wave.squareWave(tmr, period);
break;
default:
waveType = TRIANGLE;
break;
}//end of wave type switch case
}
}
Update Output class:
class UpdateOutput{
public:
//constructor for class, with member initializer list
UpdateOutput(): runLed(LED2), clipLed(LED3), dac(D13)
{}
float sinWave(int tmr, float period);
float sawWave(int tmr, float period);
float triangleWave(int tmr, float period);
float squareWave(int tmr, float period);
private:
//class attributes
DigitalOut runLed;
DigitalOut clipLed;
AnalogOut dac;
//extern float frequency(float lowerThreshold, float upperThreshold, int correction);
bool waveState = 0;
//float lastVout;
};
example of function within UpdateOutputs class
float UpdateOutput::squareWave(int tmr, float period){
float Vout = 0.0f;
//float period5 = period/1.587401052;
float resultingWave;
float x = (float)(tmr % (int)period)/period;
if (x > 0.5f){
resultingWave = 1.0f;
}
else{
Vout = 0.0f;
}
Vout = (resultingWave/WAVE_DEVIDOR)+(0.25f); //translate wave to work between 0 and 1 rather than -1 and 1
if (Vout > 1){
clipLed = 1;
Vout = 1.0f;
}
else if (Vout < 0.0f){
clipLed = 1;
Vout = 0.0f;
}
//printf("Vout = %5.3f\n\r", Vout);
return Vout;
}//end of squareWave
You are using AnalogOut Vout(A0);
as your DAC output in main()
. Perhaps you intended to update UpdateOutput::dac
directly in the class>
A0
is assigned PA_3
in PinNames.h while PeripheralPinMaps.h has:
//*** DAC *** MSTD_CONSTEXPR_OBJ_11 PinMap PinMap_DAC[] = { {PA_4, DAC_1, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 1, 0)}, // DAC_OUT1 {PA_5, DAC_1, STM_PIN_DATA_EXT(STM_MODE_ANALOG, GPIO_NOPULL, 0, 2, 0)}, // DAC_OUT2 {NC, NC, 0} };
So it is the AnalogOut Vout(A0);
is invalid. D13
assigned to UpdateOutput::dac
and which is an alias for PA_5
however is correct.
You might change AnalogOut Vout(A0)
to AnalogOut Vout(D13);
, but I suspect that your either are, or intended to update UpdateOutput::dac
in the waveform generator functions themselves rather then assigning their return value.