mirror of
https://github.com/jhbruhn/eurorack.git
synced 2025-03-15 02:55:49 +00:00
92 lines
2.5 KiB
C++
92 lines
2.5 KiB
C++
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#include "avrlib/adc.h"
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#include "avrlib/avrlib.h"
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#include "avrlib/boot.h"
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#include "avrlib/devices/mcp492x.h"
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#include "avrlib/gpio.h"
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#include "avrlib/spi.h"
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#include "avrlib/time.h"
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#include "avrlib/watchdog_timer.h"
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#include "stereo_mix/resources.h"
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using namespace avrlib;
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using namespace stereo_mix;
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typedef SpiMaster<NumberedGpio<0>, MSB_FIRST, 2> dac1Spi;
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typedef Dac<dac1Spi, BUFFERED_REFERENCE, 1> Dac1;
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typedef SpiMaster<NumberedGpio<1>, MSB_FIRST, 2> dac2Spi;
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typedef Dac<dac2Spi, BUFFERED_REFERENCE, 1> Dac2;
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typedef SpiMaster<NumberedGpio<2>, MSB_FIRST, 2> dac3Spi;
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typedef Dac<dac3Spi, BUFFERED_REFERENCE, 1> Dac3;
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typedef SpiMaster<NumberedGpio<3>, MSB_FIRST, 2> dac4Spi;
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typedef Dac<dac4Spi, BUFFERED_REFERENCE, 1> Dac4;
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typedef SpiMaster<NumberedGpio<4>, MSB_FIRST, 2> oDac1Spi;
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typedef Dac<oDac1Spi, BUFFERED_REFERENCE, 0> oDac1;
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typedef SpiMaster<NumberedGpio<5>, MSB_FIRST, 2> oDac2Spi;
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typedef Dac<oDac2Spi, BUFFERED_REFERENCE, 0> oDac2;
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typedef SpiMaster<NumberedGpio<6>, MSB_FIRST, 2> oDac3Spi;
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typedef Dac<oDac3Spi, BUFFERED_REFERENCE, 0> oDac3;
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typedef SpiMaster<NumberedGpio<7>, MSB_FIRST, 2> oDac4Spi;
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typedef Dac<oDac4Spi, BUFFERED_REFERENCE, 0> oDac4;
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typedef AdcInputScanner AnalogInputs;
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#define NUM_CHANNELS 4
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uint32_t volume[NUM_CHANNELS];
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uint16_t pan[NUM_CHANNELS * 2];
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int main(void)
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{
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Boot(true);
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Dac1::Init();
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Dac2::Init();
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Dac3::Init();
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Dac4::Init();
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oDac1::Init();
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oDac2::Init();
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oDac3::Init();
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oDac4::Init();
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AnalogInputs::Init();
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AnalogInputs::set_num_inputs(8);
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#define WRITE(DAC, ODAC, N) \
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DAC::Write((volume[N] * pan[N * NUM_CHANNELS]) >> 12, 0); \
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ODAC::Write((volume[N] * pan[N * NUM_CHANNELS]) >> 12, 0); \
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DAC::Write((volume[N] * pan[N * NUM_CHANNELS + 1]) >> 12, 1); \
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ODAC::Write((volume[N] * pan[N * NUM_CHANNELS + 1]) >> 12, 1);
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while (true) {
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ResetWatchdog();
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int i = AnalogInputs::current_pin() % NUM_CHANNELS;
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volume[i] = pgm_read_word_near(lut_res_linear_to_exp + (AnalogInputs::Read(i) >> 1));
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pan[i * NUM_CHANNELS] = pgm_read_word(lut_res_left_sin_pan + (AnalogInputs::Read(i + NUM_CHANNELS) >> 1));
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pan[i * NUM_CHANNELS + 1] = pgm_read_word(lut_res_right_cos_pan + (AnalogInputs::Read(i + NUM_CHANNELS) >> 1));
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switch (i) {
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case 0:
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WRITE(Dac1, oDac1, i);
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break;
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case 1:
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WRITE(Dac2, oDac2, i);
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break;
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case 2:
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WRITE(Dac3, oDac3, i);
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break;
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case 3:
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WRITE(Dac4, oDac4, i);
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break;
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}
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AnalogInputs::Scan();
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}
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}
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TIMER_0_TICK
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{
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TickSystemClock();
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}
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