sample.ino

#include "Cosa/Types.h"
#include "Cosa/AnalogPin.hh"
// #include "Cosa/AnalogPins.hh"
#include "Cosa/Periodic.hh"
#include "Cosa/Event.hh"

#include "Cosa/Board.hh"
#include "Cosa/OutputPin.hh"
#include "Cosa/Watchdog.hh"
#include "Cosa/Trace.hh"

//#include "Cosa/IOStream/Driver/UART.hh"
#include "Cosa/UART.hh"
#include "Cosa/Memory.h"

static const uint16_t SAMPLE_MS = 100;

class samplePin : public AnalogPin, Periodic {
  static const uint8_t nBuf = 10;
  uint32_t ringBuffer[nBuf];
  uint8_t pBuf;
public:
samplePin(Job::Scheduler* scheduler, Board::AnalogPin pin) :
  AnalogPin(pin),
    Periodic(scheduler, SAMPLE_MS),
    ringBuffer({0, 0, 0, 0, 0, 0, 0, 0, 0, 0}),
    pBuf(0) { 
    // trace << PSTR("hi samplePin \n");
  }

  void begin() {
    trace << PSTR("run samplePin \n");
    powerup();
    sample_request(Event::SAMPLE_COMPLETED_TYPE);
  }
  
  virtual void on_event(uint8_t type, uint16_t value) {
    UNUSED(type);
    trace << PSTR("analog on_event\n");
    ringBuffer[pBuf] = value * value;
    pBuf ++;
    if (pBuf > nBuf) {
      pBuf = 0;
    }
  }
};

Watchdog::Scheduler scheduler;

samplePin sPin(&scheduler, Board::A0);

void setup()
{
  // Start trace output stream on the serial port
  uart.begin(9600);
  trace.begin(&uart, PSTR("CosaTWISlave: started"));

  // Check amount of free memory and size of classes
  TRACE(free_memory());
  // Start the watchdog ticks counter
  trace << PSTR("watchdog began\n");
  sPin.begin();
  Watchdog::begin();
//   Watchdog::job(&scheduler);
}

void loop()
{
  Event event;
  trace << PSTR("loop\n");
  Event::queue.await(&event);
  event.dispatch();
}