c720cc76e2
Added execution for highVoltage and signalOutput Added highVoltage boosting Added signal output
146 lines
3.5 KiB
C
146 lines
3.5 KiB
C
/*
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* geigerzaehler.c
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*
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* Created : 28.02.2019 09:07:22
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* Author : John Ditgens, Alexander Brandscheidt
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* Git-Repository : https://gitea.Railduction.eu/JohnD/Geigerzaehler.git
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*
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* MController : AtMega328P
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* Board : Arduino Nano
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*/
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#define F_CPU 20000000UL // Clock speed: 20 MHz - Maximum of AtMega328P
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// Macros
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#define bit_get(p,m) ((p) & (m))
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#define bit_set(p,m) ((p) |= (m))
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#define bit_clear(p,m) ((p) &= ~(m))
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#define bit_flip(p,m) ((p) ^= (m))
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#define bit_write(c,p,m) (c ? bit_set(p,m) : bit_clear(p,m))
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#define BIT(x) (0x01 << (x))
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#define LONGBIT(x) ((unsigned long)0x00000001 << (x))
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// Imports
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <stdint.h>
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// Global variable declaration
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uint32_t currTick = 0;
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bool enable_boost = false;
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bool boost_highVoltage_nextHigh = true;
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uint32_t boost_highVoltage_nextTick = 0;
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bool enable_signalOutput = false;
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bool signal_Output_nextHigh = true;
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uint32_t signal_Output_nextTick = 0;
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int main()
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{
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DDRD &= ~(1<<2); // Activate PD2
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DDRD &= ~(1<<3); // Activate PD3
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PORTD |= (1<<2); // Enable pull-up-resistor Pin-D2
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PORTD |= (1<<3); // Enable pull-up-resistor Pin-D3
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// Interrupt for INT0 Pin-D2 High-voltage check
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EICRA |= (0 << ISC01)|(1 << ISC00); // Only at any edge [0|1]
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EIMSK |= (1 << INT0); // Activate Interrupt INT0
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// Interrupt for INT1 Pin-D3 Counter-click
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EICRA |= (1 << ISC11)|(1 << ISC10); // Only at rising edge [1|1]
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EIMSK |= (1 <<INT1); // Activate Interrupt INT1
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sei(); // Activate global interrupts
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// Endless loop
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while (1)
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{
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// HighVoltage boosting
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if(enable_boost)
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{
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if(currTick >= boost_highVoltage_nextTick) // If we are on or after the tick it should be executed
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{
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// Set pin according to next exec
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if(boost_highVoltage_nextHigh) // Set it high
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{
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bit_set(PD4, 1);
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boost_highVoltage_nextHigh = false; // Next is low
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}
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else // Set it low
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{
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bit_set(PD4, 0);
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boost_highVoltage_nextHigh = true; // Next is high
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}
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// Calculate when next high/low should be set
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boost_highVoltage_nextTick = currTick + 101 // Todo: Add calculation for pin high/low time
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}
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}else
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{
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if(boost_highVoltage_nextTick > 0) // If boosting is deactivated, but the nextTick was not reset yet
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{
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// Reset boost-state
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bit_set(PD4, 0);
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boost_highVoltage_nextHigh = true;
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boost_highVoltage_nextTick = 0;
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}
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}
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// Signal output
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if(enable_signalOutput)
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{
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if(currTick >= signal_Output_nextTick) // If we are on or after the tick it should be executed
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{
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// Set pin according to next exec
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if(boost_highVoltage_nextHigh) // Set it high
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{
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bit_set(PD5, 1);
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bit_set(PD6, 1);
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boost_highVoltage_nextHigh = false; // Next is low
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}
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else // Set it low
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{
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bit_set(PD5, 0);
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bit_set(PD6, 0);
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boost_highVoltage_nextHigh = true; // Next is high
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}
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// When the signal should stop
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boost_highVoltage_nextTick = currTick + 101 // Todo: Add calculation for pin high/low time
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}
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}
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}
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}
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/*
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* Interrupt-handler
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* ISR - Interrupt service routine
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*/
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// Address: 0x001 INT0
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ISR(INT0_vect)
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{
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if(PIND&0x20 == 0x00) // Falling edge
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{
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// Below ~400V, activate booster
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enable_boost = true;
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}
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else // Rising edge
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{
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// Reached ~400V, deactivate booster
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enable_boost = false;
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}
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reti(); // Exit interrupt-handler
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}
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ISR(INT1_vect)
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{
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// Tick detected, signalOutput
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enable_signalOutput = true;
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reti(); // Exit interrupt-handler
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} |