// Constructor GasSensor::GasSensor(char indexnumber, int pinnumber) { pin = pinnumber; #ifdef ARDUINO analogReadRes(16); analogReadAveraging(NUM_ANALOG_READS); // Check PIN voltage pinMode(pin, INPUT); #else millis_val=0; analog_val=0; #endif // Stop reading analog values to protect pin pinhigh=true; lval=0; quality=100; for (char i=0; i<QUALITY_HISTORY;i++) quality_history[i]=100; quality_history_pos=0; // Reset htmap mapresettime=MAP_RESET_TIME; for (uint8_t hum=0; hum<HT_MAP_COUNT_HUM; hum++) { for (uint8_t temp=0; temp<HT_MAP_COUNT_TEMP; temp++) { htmap_avg[hum][temp]=65535; htmap_max[hum][temp]=65535; } } }
void Interface::init(int fileSize, int channels, const Settings& settings, PlayState* state) { analogReadRes(ADC_BITS); pinMode(RESET_BUTTON, OUTPUT); pinMode(RESET_CV, settings.resetIsOutput ? OUTPUT : INPUT); // Add an interrupt on the RESET_CV pin to catch rising edges attachInterrupt(RESET_CV, resetcv, RISING); uint16_t bounceInterval = 5; resetButtonBounce.attach(RESET_BUTTON); resetButtonBounce.interval(bounceInterval); // make it backwards compatible with the old 10-bit cv and divider startCVDivider = settings.startCVDivider * (ADC_MAX_VALUE / 1024); pitchMode = settings.pitchMode; if(pitchMode) { quantiseRootCV = settings.quantiseRootCV; quantiseRootPot = settings.quantiseRootPot; float lowNote = settings.lowNote + 0.5; startCVInput.setRange(lowNote, lowNote + settings.noteRange, quantiseRootCV); startPotInput.setRange(0.0,48, quantiseRootPot); startCVInput.borderThreshold = 64; startPotInput.borderThreshold = 64; } else { D(Serial.print("Set Start Range ");Serial.println(ADC_MAX_VALUE / startCVDivider);); startPotInput.setRange(0.0, ADC_MAX_VALUE / startCVDivider, false); startCVInput.setRange(0.0, ADC_MAX_VALUE / startCVDivider, false); startPotInput.setAverage(true); startCVInput.setAverage(true); startCVInput.borderThreshold = 32; startPotInput.borderThreshold = 32; }
void AudioInputAnalogStereo::init(uint8_t pin0, uint8_t pin1) { uint32_t i, sum0=0, sum1=0; //pinMode(32, OUTPUT); //pinMode(33, OUTPUT); // Configure the ADC and run at least one software-triggered // conversion. This completes the self calibration stuff and // leaves the ADC in a state that's mostly ready to use analogReadRes(16); analogReference(INTERNAL); // range 0 to 1.2 volts #if F_BUS == 96000000 || F_BUS == 48000000 || F_BUS == 24000000 analogReadAveraging(8); ADC1_SC3 = ADC_SC3_AVGE + ADC_SC3_AVGS(1); #else analogReadAveraging(4); ADC1_SC3 = ADC_SC3_AVGE + ADC_SC3_AVGS(0); #endif // Actually, do many normal reads, to start with a nice DC level for (i=0; i < 1024; i++) { sum0 += analogRead(pin0); sum1 += analogReadADC1(pin1); } for (i = 0; i < 16; i++) { left_dc_average_hist[i] = sum0 >> 10; right_dc_average_hist[i] = sum1 >> 10; } // set the programmable delay block to trigger the ADC at 44.1 kHz //if (!(SIM_SCGC6 & SIM_SCGC6_PDB) //|| (PDB0_SC & PDB_CONFIG) != PDB_CONFIG //|| PDB0_MOD != PDB_PERIOD //|| PDB0_IDLY != 1 //|| PDB0_CH0C1 != 0x0101) { SIM_SCGC6 |= SIM_SCGC6_PDB; PDB0_IDLY = 1; PDB0_MOD = PDB_PERIOD; PDB0_SC = PDB_CONFIG | PDB_SC_LDOK; PDB0_SC = PDB_CONFIG | PDB_SC_SWTRIG; PDB0_CH0C1 = 0x0101; PDB0_CH1C1 = 0x0101; //} // enable the ADC for hardware trigger and DMA ADC0_SC2 |= ADC_SC2_ADTRG | ADC_SC2_DMAEN; ADC1_SC2 |= ADC_SC2_ADTRG | ADC_SC2_DMAEN; // set up a DMA channel to store the ADC data dma0.begin(true); dma1.begin(true); // ADC0_RA = 0x4003B010 // ADC1_RA = 0x400BB010 dma0.TCD->SADDR = &ADC0_RA; dma0.TCD->SOFF = 0; dma0.TCD->ATTR = DMA_TCD_ATTR_SSIZE(1) | DMA_TCD_ATTR_DSIZE(1); dma0.TCD->NBYTES_MLNO = 2; dma0.TCD->SLAST = 0; dma0.TCD->DADDR = left_buffer; dma0.TCD->DOFF = 2; dma0.TCD->CITER_ELINKNO = sizeof(left_buffer) / 2; dma0.TCD->DLASTSGA = -sizeof(left_buffer); dma0.TCD->BITER_ELINKNO = sizeof(left_buffer) / 2; dma0.TCD->CSR = DMA_TCD_CSR_INTHALF | DMA_TCD_CSR_INTMAJOR; dma1.TCD->SADDR = &ADC1_RA; dma1.TCD->SOFF = 0; dma1.TCD->ATTR = DMA_TCD_ATTR_SSIZE(1) | DMA_TCD_ATTR_DSIZE(1); dma1.TCD->NBYTES_MLNO = 2; dma1.TCD->SLAST = 0; dma1.TCD->DADDR = right_buffer; dma1.TCD->DOFF = 2; dma1.TCD->CITER_ELINKNO = sizeof(right_buffer) / 2; dma1.TCD->DLASTSGA = -sizeof(right_buffer); dma1.TCD->BITER_ELINKNO = sizeof(right_buffer) / 2; dma1.TCD->CSR = DMA_TCD_CSR_INTHALF | DMA_TCD_CSR_INTMAJOR; dma0.triggerAtHardwareEvent(DMAMUX_SOURCE_ADC0); //dma1.triggerAtHardwareEvent(DMAMUX_SOURCE_ADC1); dma1.triggerAtTransfersOf(dma0); dma1.triggerAtCompletionOf(dma0); update_responsibility = update_setup(); dma0.enable(); dma1.enable(); dma0.attachInterrupt(isr0); dma1.attachInterrupt(isr1); }
void AudioInputAnalog::begin(unsigned int pin) { uint32_t i, sum=0; // pin must be 0 to 13 (for A0 to A13) // or 14 to 23 for digital pin numbers A0-A9 // or 34 to 37 corresponding to A10-A13 if (pin > 23 && !(pin >= 34 && pin <= 37)) return; //pinMode(2, OUTPUT); //pinMode(3, OUTPUT); //digitalWriteFast(3, HIGH); //delayMicroseconds(500); //digitalWriteFast(3, LOW); // Configure the ADC and run at least one software-triggered // conversion. This completes the self calibration stuff and // leaves the ADC in a state that's mostly ready to use analogReadRes(16); analogReference(INTERNAL); // range 0 to 1.2 volts //analogReference(DEFAULT); // range 0 to 3.3 volts analogReadAveraging(8); // Actually, do many normal reads, to start with a nice DC level for (i=0; i < 1024; i++) { sum += analogRead(pin); } dc_average = sum >> 10; // testing only, enable adc interrupt //ADC0_SC1A |= ADC_SC1_AIEN; //while ((ADC0_SC1A & ADC_SC1_COCO) == 0) ; // wait //NVIC_ENABLE_IRQ(IRQ_ADC0); // set the programmable delay block to trigger the ADC at 44.1 kHz SIM_SCGC6 |= SIM_SCGC6_PDB; PDB0_MOD = PDB_PERIOD; PDB0_SC = PDB_CONFIG | PDB_SC_LDOK; PDB0_SC = PDB_CONFIG | PDB_SC_SWTRIG; PDB0_CH0C1 = 0x0101; // enable the ADC for hardware trigger and DMA ADC0_SC2 |= ADC_SC2_ADTRG | ADC_SC2_DMAEN; // set up a DMA channel to store the ADC data SIM_SCGC7 |= SIM_SCGC7_DMA; SIM_SCGC6 |= SIM_SCGC6_DMAMUX; DMA_CR = 0; DMA_TCD2_SADDR = &ADC0_RA; DMA_TCD2_SOFF = 0; DMA_TCD2_ATTR = DMA_TCD_ATTR_SSIZE(1) | DMA_TCD_ATTR_DSIZE(1); DMA_TCD2_NBYTES_MLNO = 2; DMA_TCD2_SLAST = 0; DMA_TCD2_DADDR = analog_rx_buffer; DMA_TCD2_DOFF = 2; DMA_TCD2_CITER_ELINKNO = sizeof(analog_rx_buffer) / 2; DMA_TCD2_DLASTSGA = -sizeof(analog_rx_buffer); DMA_TCD2_BITER_ELINKNO = sizeof(analog_rx_buffer) / 2; DMA_TCD2_CSR = DMA_TCD_CSR_INTHALF | DMA_TCD_CSR_INTMAJOR; DMAMUX0_CHCFG2 = DMAMUX_DISABLE; DMAMUX0_CHCFG2 = DMAMUX_SOURCE_ADC0 | DMAMUX_ENABLE; update_responsibility = update_setup(); DMA_SERQ = 2; NVIC_ENABLE_IRQ(IRQ_DMA_CH2); }
void AudioInputAnalogStereo::init(uint8_t pin0, uint8_t pin1) { uint32_t tmp; //pinMode(32, OUTPUT); //pinMode(33, OUTPUT); // Configure the ADC and run at least one software-triggered // conversion. This completes the self calibration stuff and // leaves the ADC in a state that's mostly ready to use analogReadRes(16); analogReference(INTERNAL); // range 0 to 1.2 volts #if F_BUS == 96000000 || F_BUS == 48000000 || F_BUS == 24000000 analogReadAveraging(8); ADC1_SC3 = ADC_SC3_AVGE + ADC_SC3_AVGS(1); #else analogReadAveraging(4); ADC1_SC3 = ADC_SC3_AVGE + ADC_SC3_AVGS(0); #endif // Note for review: // Probably not useful to spin cycles here stabilizing // since DC blocking is similar to te external analog filters tmp = (uint16_t) analogRead(pin0); tmp = ( ((int32_t) tmp) << 14); hpf_x1[0] = tmp; // With constant DC level x1 would be x0 hpf_y1[0] = 0; // Output will settle here when stable tmp = (uint16_t) analogReadADC1(pin1); tmp = ( ((int32_t) tmp) << 14); hpf_x1[1] = tmp; // With constant DC level x1 would be x0 hpf_y1[1] = 0; // Output will settle here when stable // set the programmable delay block to trigger the ADC at 44.1 kHz //if (!(SIM_SCGC6 & SIM_SCGC6_PDB) //|| (PDB0_SC & PDB_CONFIG) != PDB_CONFIG //|| PDB0_MOD != PDB_PERIOD //|| PDB0_IDLY != 1 //|| PDB0_CH0C1 != 0x0101) { SIM_SCGC6 |= SIM_SCGC6_PDB; PDB0_IDLY = 1; PDB0_MOD = PDB_PERIOD; PDB0_SC = PDB_CONFIG | PDB_SC_LDOK; PDB0_SC = PDB_CONFIG | PDB_SC_SWTRIG; PDB0_CH0C1 = 0x0101; PDB0_CH1C1 = 0x0101; //} // enable the ADC for hardware trigger and DMA ADC0_SC2 |= ADC_SC2_ADTRG | ADC_SC2_DMAEN; ADC1_SC2 |= ADC_SC2_ADTRG | ADC_SC2_DMAEN; // set up a DMA channel to store the ADC data dma0.begin(true); dma1.begin(true); // ADC0_RA = 0x4003B010 // ADC1_RA = 0x400BB010 dma0.TCD->SADDR = &ADC0_RA; dma0.TCD->SOFF = 0; dma0.TCD->ATTR = DMA_TCD_ATTR_SSIZE(1) | DMA_TCD_ATTR_DSIZE(1); dma0.TCD->NBYTES_MLNO = 2; dma0.TCD->SLAST = 0; dma0.TCD->DADDR = left_buffer; dma0.TCD->DOFF = 2; dma0.TCD->CITER_ELINKNO = sizeof(left_buffer) / 2; dma0.TCD->DLASTSGA = -sizeof(left_buffer); dma0.TCD->BITER_ELINKNO = sizeof(left_buffer) / 2; dma0.TCD->CSR = DMA_TCD_CSR_INTHALF | DMA_TCD_CSR_INTMAJOR; dma1.TCD->SADDR = &ADC1_RA; dma1.TCD->SOFF = 0; dma1.TCD->ATTR = DMA_TCD_ATTR_SSIZE(1) | DMA_TCD_ATTR_DSIZE(1); dma1.TCD->NBYTES_MLNO = 2; dma1.TCD->SLAST = 0; dma1.TCD->DADDR = right_buffer; dma1.TCD->DOFF = 2; dma1.TCD->CITER_ELINKNO = sizeof(right_buffer) / 2; dma1.TCD->DLASTSGA = -sizeof(right_buffer); dma1.TCD->BITER_ELINKNO = sizeof(right_buffer) / 2; dma1.TCD->CSR = DMA_TCD_CSR_INTHALF | DMA_TCD_CSR_INTMAJOR; dma0.triggerAtHardwareEvent(DMAMUX_SOURCE_ADC0); //dma1.triggerAtHardwareEvent(DMAMUX_SOURCE_ADC1); dma1.triggerAtTransfersOf(dma0); dma1.triggerAtCompletionOf(dma0); update_responsibility = update_setup(); dma0.enable(); dma1.enable(); dma0.attachInterrupt(isr0); dma1.attachInterrupt(isr1); }