50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
#include "gpio.h"
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#include "usartclass.h"
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#include "print.h"
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#include "adcclass.h"
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#include "oneway.h"
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//////////////////////////////////////
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class Process : public OneWay {
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GpioClass led;
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UsartClass serial;
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Print cout;
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FIFO<uint16_t, 8> data;
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int pass_cnt;
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public:
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explicit Process () noexcept : OneWay (),
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led (GPIOD, 4), serial (115200u), cout (DEC), data(), pass_cnt (0) {
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cout += serial;
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}
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unsigned Send (uint16_t * const ptr, const unsigned len) override {
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unsigned sum = 0u;
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for (unsigned n=0; n<len; n++) sum += ptr [n];
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sum >>= 4;
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data.Write (static_cast<uint16_t> (sum));
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return len;
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}
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void pass () {
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uint16_t avg;
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if (!data.Read (avg)) return;
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cout << "pass: " << pass_cnt << ", avg = " << static_cast<int>(avg) << EOL;
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pass_cnt += 1;
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const bool b = pass_cnt & 1;
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led << b;
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}
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};
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//////////////////////////////////////
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/* Tohle DEMO je složitější. ADC má
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* pevnou frekvenci vzorkování 1kHz,
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* vzorky se průměrují v přerušení a
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* vypisují (v jiném přerušení) na
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* sériový port.
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* */
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//////////////////////////////////////
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static AdcClass adc;
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static Process out;
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int main () {
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adc.attach(out);
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for (;;) {
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out.pass();
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}
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return 0;
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}
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