RISC-V/V203/hello/pwmclass.h

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2024-08-17 14:27:07 +02:00
#ifndef PWMCLASS_H
#define PWMCLASS_H
#include "gpio.h"
#include "oneway.h"
static constexpr unsigned HALF_LEN = 24u;
static constexpr unsigned FULL_LEN = 2u * HALF_LEN;
static constexpr unsigned MAXPWM = 6000u;
/* Používá TIM1, PWM kanál 1, DMA1 kanál 5, přerušení DMA1_Channel5_IRQHandler */
class PwmClass {
uint16_t * const pL;
uint16_t * const pH;
uint16_t buffer [FULL_LEN];
OneWay * src;
public:
explicit PwmClass () noexcept;
void attach (OneWay & s) { src = & s; }
void send (const bool b) {
if (!src) return;
if (b) src->Send (pH, HALF_LEN);
else src->Send (pL, HALF_LEN);
}
uint16_t * getBuff () const { return pL; }
};
#endif // PWMCLASS_H