mirror of https://github.com/rusefi/rusefi.git
64 lines
1.5 KiB
C++
64 lines
1.5 KiB
C++
#include "dac.h"
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#include <rusefi/math.h>
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#if EFI_DAC
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static DACConfig dacConfig = {
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.init = 4095U, /* full VCC */
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.datamode = DAC_DHRM_12BIT_RIGHT,
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.cr = 0
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};
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Dac::Dac(DACDriver& driver)
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: m_driver(&driver)
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{
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}
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void Dac::Start(DACConfig& p_config)
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{
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dacStart(m_driver, &p_config);
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}
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void Dac::SetVoltage(int channel, float voltage) {
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voltage = clampF(0, voltage, engineConfiguration->adcVcc);
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m_voltageFloat[channel] = voltage;
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dacPutChannelX(m_driver, channel, voltage / engineConfiguration->adcVcc * ((1 << 12) - 1));
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}
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float Dac::GetLastVoltage(int channel)
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{
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return m_voltageFloat[channel];
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}
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static Dac dacs[] {
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/** ChibiOS magic: if not dual mode DAC1 CH1 driver identifier.*/
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Dac(DACD1),
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/** ChibiOS magic: if not dual mode DAC1 CH2 driver identifier.*/
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Dac(DACD2)
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};
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void initDac() {
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bool dacIsUsed = false;
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for (size_t i = 0;i<DAC_OUTPUT_COUNT;i++) {
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Gpio pin = engineConfiguration->dacOutputPins[i];
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if (isBrainPinValid(pin)) {
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// setting up the output pin as analog as suggested by the Reference Manual.
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efiSetPadMode("dac", pin, PAL_MODE_INPUT_ANALOG);
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dacIsUsed = true;
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}
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}
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if (dacIsUsed) {
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// DAC peripheral changes associated pin behaviour regardless of actual pin mode
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dacs[0].Start(dacConfig);
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dacs[1].Start(dacConfig);
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}
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}
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void setDacVoltage(int channel, float voltage) {
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dacs[channel].SetVoltage(0, voltage);
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}
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#endif // EFI_DAC
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