slave2
Dependencies: PinDetect dsp mbed-rtos mbed
Diff: main.cpp
- Revision:
- 1:caeb5792f292
- Parent:
- 0:7ee25b048596
- Child:
- 2:919431d2e1a7
--- a/main.cpp Sun Apr 24 17:37:33 2016 +0000 +++ b/main.cpp Mon Apr 25 01:43:46 2016 +0000 @@ -2,46 +2,90 @@ #include "PinDetect.h" #include "rtos.h" -DigitalOut myled(LED1); +DigitalOut myled(LED1); //LEDS for debug purposes DigitalOut myled2(LED2); DigitalOut myled4(LED4); -AnalogOut outfunction(p18); -DigitalOut masterSignalOut(p26); -InterruptIn trigger(p25); +AnalogIn audioIn(p20);//pin for sound capture +//AnalogOut outfunction(p18); +//DigitalOut masterSignalOut(p26); +InterruptIn startButton(p21); +InterruptIn printButton(p22); +//InterruptIn trigger(p25); +Serial pc(USBTX,USBRX);//serial to computer +Serial master(p9,p10);//serial to slave 1 +#define samples 300 //how many samples to take +float* data; //set up the recording array +float* dataSlave1; //set up array for slave1's data +Timer ti; //Timer to determine sampling rate +int startTime; +int endTime; +int sampleRate; int counter; - -Timer ti; +int start; +int print; void analogScope(void const *args){ counter = 0; myled = 0; while(1){ //outfunction = (ti.read_us()%1000)*0.001; - //myled= (((ti.read_ms())>>10)%1); - outfunction = (counter%10)*0.1; + //myled = (((int)(ti.read_ms())>>10)%1); + //outfunction = (counter%10)*0.1; counter++; myled = !myled; + //Thread::wait_us(50); } } void sendinterrupt(void){ - masterSignalOut = 1; + //masterSignalOut = 1; } void interruptrecv(void){ ti.reset(); myled4 = !myled4; counter = 0; - masterSignalOut = 0; + //masterSignalOut = 0; +} +void startRecording(void){ + start = 1; + myled2 = 1; +} +void startPrint(void){ + print = 1; + myled4 = 1; } int main() { ti.reset(); + start = 0; myled2 = 0; myled4 = 0; - masterSignalOut = 0; - Thread threadanalog(analogScope); - threadanalog.set_priority(osPriorityLow); - trigger.rise(&interruptrecv); + //allocate memory to the data arrays + data = (float*) malloc(sizeof(float)*samples); + dataSlave1 = (float*) malloc(sizeof(float)*samples); + //masterSignalOut = 0; + //startButton.mode(PullUp); + startButton.fall(&startRecording); + //printButton.mode(PullUp); + printButton.fall(&startPrint); + //trigger.rise(&interruptrecv); + //Thread threadanalog(analogScope); + //threadanalog.set_priority(osPriorityLow); while(1) { - myled2 = !myled2; - Thread::wait(10000); + //myled2 = !myled2; + if(start){ //once button is pressed + startTime = ti.read_us(); //get start time + for(int i = 0;i<samples;i++){ //record 300 samples + data[i] = audioIn; + } + endTime = ti.read_us(); //get end time + sampleRate = (int)(samples*1000000/(endTime-startTime)); //calculate sample rate + start = 0; //stop + } + if(print){ + for(int i = 0;i<samples;i++){ + pc.printf("%5f ",data[i]); + } + pc.printf("\n %5d",sampleRate); + print = 0; + } } }