mirror of https://github.com/g4klx/MMDVM.git
168 lines
3.7 KiB
C++
168 lines
3.7 KiB
C++
/*
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* Copyright (C) 2016 by Jonathan Naylor G4KLX
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "Config.h"
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#include "Globals.h"
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#include "IO.h"
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#if defined(__MK20DX256__) || defined(__MK66FX1M0__)
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// A Teensy 3.1/3.2
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#if defined(__MK20DX256__)
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#define PIN_LED 13
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#define PIN_COS 52
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#define PIN_PTT 23
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#define PIN_COSLED 22
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#define PIN_DSTAR 9
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#define PIN_DMR 8
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#define PIN_YSF 7
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#define PIN_P25 6
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// A Teensy 3.6
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#elif defined(__MK66FX1M0__)
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#define PIN_LED 13
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#define PIN_COS 52
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#define PIN_PTT 23
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#define PIN_COSLED 22
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#define PIN_DSTAR 9
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#define PIN_DMR 8
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#define PIN_YSF 7
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#define PIN_P25 6
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#endif
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const uint16_t DC_OFFSET = 2048U;
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extern "C" {
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void ADC_Handler()
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{
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io.interrupt();
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}
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}
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void CIO::initInt()
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{
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// Set up the TX, COS and LED pins
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pinMode(PIN_PTT, OUTPUT);
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pinMode(PIN_COSLED, OUTPUT);
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pinMode(PIN_LED, OUTPUT);
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pinMode(PIN_COS, INPUT);
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#if defined(ARDUINO_MODE_PINS)
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// Set up the mode output pins
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pinMode(PIN_DSTAR, OUTPUT);
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pinMode(PIN_DMR, OUTPUT);
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pinMode(PIN_YSF, OUTPUT);
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pinMode(PIN_P25, OUTPUT);
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#endif
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}
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void CIO::startInt()
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{
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// Initialise ADC1 conversion to be triggered by the PDB
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// Setup interrupt on ADC1 conversion finished
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// Setup PDB for ADC1 at 24 kHz
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#if defined(SEND_RSSI_DATA)
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// Initialise ADC2 conversion to be triggered by the PDB
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// Setup interrupt on ADC2 conversion finished
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// Setup PDB for ADC2 at 24 kHz
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#endif
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// Initialise the DAC
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SIM_SCGC2 |= SIM_SCGC2_DAC0;
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DAC0_C0 = DAC_C0_DACEN; // 1.2V VDDA is DACREF_2
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digitalWrite(PIN_PTT, m_pttInvert ? HIGH : LOW);
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digitalWrite(PIN_COSLED, LOW);
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digitalWrite(PIN_LED, HIGH);
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}
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void CIO::interrupt()
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{
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if ((ADC0_SC1A & ADC_SC1_COCO) == ADC_SC1_COCO) {
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uint8_t control = MARK_NONE;
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uint16_t sample = DC_OFFSET;
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m_txBuffer.get(sample, control);
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*(int16_t *)&(DAC0_DAT0L) = sample;
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sample = ADC0_RA;
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m_rxBuffer.put(sample, control);
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#if !defined(SEND_RSSI_DATA)
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m_rssiBuffer.put(0U);
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#endif
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m_watchdog++;
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}
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#if defined(SEND_RSSI_DATA)
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if ((ADC1_SC1A & ADC_SC1_COCO) == ADC_SC1_COCO) {
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uint16_t rssi = ADC1_RA;
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m_rssiBuffer.put(rssi);
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}
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#endif
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}
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bool CIO::getCOSInt()
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{
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return digitalRead(PIN_COS) == HIGH;
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}
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void CIO::setLEDInt(bool on)
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{
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digitalWrite(PIN_LED, on ? HIGH : LOW);
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}
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void CIO::setPTTInt(bool on)
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{
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digitalWrite(PIN_PTT, on ? HIGH : LOW);
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}
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void CIO::setCOSInt(bool on)
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{
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digitalWrite(PIN_COSLED, on ? HIGH : LOW);
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}
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void CIO::setDStarInt(bool on)
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{
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digitalWrite(PIN_DSTAR, on ? HIGH : LOW);
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}
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void CIO::setDMRInt(bool on)
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{
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digitalWrite(PIN_DMR, on ? HIGH : LOW);
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}
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void CIO::setYSFInt(bool on)
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{
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digitalWrite(PIN_YSF, on ? HIGH : LOW);
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}
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void CIO::setP25Int(bool on)
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{
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digitalWrite(PIN_P25, on ? HIGH : LOW);
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}
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#endif
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