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Start adding back unowifi stuffz
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131
ATMEGA4809/Timer.h
Normal file
131
ATMEGA4809/Timer.h
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#ifndef ATMEGA328Timer_h
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#define ATMEGA328Timer_h
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#include "../VirtualTimer.h"
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#include <Arduino.h>
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// We only define behavior for timer 0 (TCA0), because TCB0 is very limited in functionality.
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class Timer : public VirtualTimer {
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private:
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int pwmPeriod;
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unsigned long timer_resolution;
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unsigned char clockSelectBits;
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int timer_num;
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unsigned long lastMicroseconds;
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public:
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void (*isrCallback)();
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Timer(int timer_num) {
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switch (timer_num)
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{
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case 0:
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timer_resolution = 65536;
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break;
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}
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this->timer_num = timer_num;
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lastMicroseconds = 0;
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}
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void initialize() {
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switch (timer_num)
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{
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case 0:
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break;
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}
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}
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void setPeriod(unsigned long microseconds) {
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if(microseconds == lastMicroseconds)
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return;
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lastMicroseconds = microseconds;
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const unsigned long cycles = (F_CPU / 1000000) * microseconds;
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switch(timer_num) {
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case 0:
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if (cycles < timer_resolution) {
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clockSelectBits = 0x0;
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pwmPeriod = cycles;
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} else
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if (cycles < timer_resolution * 2) {
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clockSelectBits = 0x1;
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pwmPeriod = cycles / 8;
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} else
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if (cycles < timer_resolution * 4) {
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clockSelectBits = 0x2;
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pwmPeriod = cycles / 32;
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} else
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if (cycles < timer_resolution * 8) {
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clockSelectBits = 0x3;
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pwmPeriod = cycles / 64;
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} else
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if (cycles < timer_resolution * 64) {
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clockSelectBits = 0x5;
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pwmPeriod = cycles / 128;
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} else
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if (cycles < timer_resolution * 256) {
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clockSelectBits = 0x6;
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pwmPeriod = cycles / 256;
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} else
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if (cycles < timer_resolution * 1024) {
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clockSelectBits = 0x7;
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pwmPeriod = cycles / 1024;
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} else {
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clockSelectBits = 0x7;
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pwmPeriod = timer_resolution - 1;
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}
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break;
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}
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switch (timer_num)
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{
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case 0:
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TCA0.SINGLE.PER = pwmPeriod;
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TCA0.SINGLE.CTRLA = clockSelectBits << 1;
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break;
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}
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}
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void start() {
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switch (timer_num)
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{
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case 0:
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bitSet(TCA0.SINGLE.CTRLA, 0);
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break;
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}
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}
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void stop() {
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switch (timer_num)
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{
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case 0:
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bitClear(TCA0.SINGLE.CTRLA, 0);
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break;
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}
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}
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void attachInterrupt(void (*isr)()) {
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isrCallback = isr;
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switch (timer_num)
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{
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case 0:
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TCA0.SINGLE.INTCTRL = 0x1;
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break;
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}
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}
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void detachInterrupt() {
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switch (timer_num)
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{
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case 0:
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TCA0.SINGLE.INTCTRL = 0x0;
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break;
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}
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}
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};
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extern Timer TimerA;
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#endif
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@ -3,16 +3,18 @@
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// The files included below come from the same source.
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// This library had been included with the DCC code to avoid issues with
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// library management for inexperienced users. "It just works (TM)"
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#ifndef ArduinoTimers_h
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#define ArduinoTimers_h
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#if defined(ARDUINO_AVR_MEGA) || defined(ARDUINO_AVR_MEGA2560)
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#include "ATMEGA2560/Timer.h"
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#include "ATMEGA2560/Timer.h"
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#elif defined(ARDUINO_AVR_UNO)
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#include "ATMEGA328/Timer.h"
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#include "ATMEGA328/Timer.h"
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#elif defined(ARDUINO_ARCH_MEGAAVR)
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#include "ATMEGA4809/Timer.h"
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#else
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#error "Cannot compile - ArduinoTimers library does not support your board, or you are missing compatible build flags."
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#error "Cannot compile - ArduinoTimers library does not support your board, or you are missing compatible build flags."
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#endif
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#endif
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2
DCC.h
2
DCC.h
@ -155,6 +155,8 @@ private:
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#define ARDUINO_TYPE "NANO"
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#elif defined(ARDUINO_AVR_MEGA2560)
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#define ARDUINO_TYPE "MEGA"
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#elif defined(ARDUINO_ARCH_MEGAAVR)
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#define ARDUINO_TYPE "UNOWIFIR2"
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#else
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#error CANNOT COMPILE - DCC++ EX ONLY WORKS WITH AN ARDUINO UNO, NANO 328, OR ARDUINO MEGA 1280/2560
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#endif
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