23 lines
380 B
C++
23 lines
380 B
C++
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#pragma once
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#include "util.hpp"
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namespace dac {
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constexpr int BITMASK_B = 0x07;
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constexpr int BITMASK_D = 0xf8;
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inline void init() {
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DDRB |= BITMASK_B;
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DDRD |= BITMASK_D;
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}
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inline void set(float v_f) {
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uint8_t v = clamp((int)(v_f * -128) + 127, 0, 255);
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PORTB = (PORTB & ~BITMASK_B) | (v & BITMASK_B);
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PORTD = (PORTD & ~BITMASK_D) | (v & BITMASK_D);
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}
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};
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