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board_avr2560.h
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1#ifndef AVR2560_H
2#define AVR2560_H
3
4#include "globals.h"
5#if defined(CORE_AVR)
6
7#include <avr/interrupt.h>
8#include <avr/io.h>
9
10/*
11***********************************************************************************************************
12* General
13*/
14 #define PORT_TYPE uint8_t //Size of the port variables (Eg inj1_pin_port).
15 #define PINMASK_TYPE uint8_t
16 #define COMPARE_TYPE uint16_t
17 #define COUNTER_TYPE uint16_t
18 #define SERIAL_BUFFER_SIZE (256+7+1) //Size of the serial buffer used by new comms protocol. The largest single packet is the O2 calibration which is 256 bytes + 7 bytes of overhead
19 #define FPU_MAX_SIZE 0 //Size of the FPU buffer. 0 means no FPU.
20 #ifdef USE_SPI_EEPROM
21 #define EEPROM_LIB_H "src/SPIAsEEPROM/SPIAsEEPROM.h"
22 typedef uint16_t eeprom_address_t;
23 #else
24 #define EEPROM_LIB_H <EEPROM.h>
25 typedef int eeprom_address_t;
26 #endif
27 #ifdef PLATFORMIO
28 #define RTC_LIB_H <TimeLib.h>
29 #else
30 #define RTC_LIB_H <Time.h>
31 #endif
32 void initBoard(void);
33 uint16_t freeRam(void);
34 void doSystemReset(void);
35 void jumpToBootloader(void);
36
37 #if defined(TIMER5_MICROS)
38 /*#define micros() (((timer5_overflow_count << 16) + TCNT5) * 4) */ //Fast version of micros() that uses the 4uS tick of timer5. See timers.ino for the overflow ISR of timer5
39 #define millis() (ms_counter) //Replaces the standard millis() function with this macro. It is both faster and more accurate. See timers.ino for its counter increment.
40 static inline unsigned long micros_safe(); //A version of micros() that is interrupt safe
41 #else
42 #define micros_safe() micros() //If the timer5 method is not used, the micros_safe() macro is simply an alias for the normal micros()
43 #endif
44 #define pinIsReserved(pin) ( ((pin) == 0) ) //Forbidden pins like USB on other boards
45
46 //Mega 2561 MCU does not have a serial3 available.
47 #if not defined(__AVR_ATmega2561__)
48 #define USE_SERIAL3
49 #endif
50
51/*
52***********************************************************************************************************
53* Schedules
54*/
55 //Refer to svn.savannah.nongnu.org/viewvc/trunk/avr-libc/include/avr/iomxx0_1.h?root=avr-libc&view=markup
56 #define FUEL1_COUNTER TCNT3
57 #define FUEL2_COUNTER TCNT3
58 #define FUEL3_COUNTER TCNT3
59 #define FUEL4_COUNTER TCNT4
60 #define FUEL5_COUNTER TCNT4
61 #define FUEL6_COUNTER TCNT4 //Replaces ignition 4
62 #define FUEL7_COUNTER TCNT5 //Replaces ignition 3
63 #define FUEL8_COUNTER TCNT5 //Replaces ignition 2
64
65 #define IGN1_COUNTER TCNT5
66 #define IGN2_COUNTER TCNT5
67 #define IGN3_COUNTER TCNT5
68 #define IGN4_COUNTER TCNT4
69 #define IGN5_COUNTER TCNT4
70 #define IGN6_COUNTER TCNT4 //Replaces injector 4
71 #define IGN7_COUNTER TCNT3 //Replaces injector 3
72 #define IGN8_COUNTER TCNT3 //Replaces injector 2
73
74 #define FUEL1_COMPARE OCR3A
75 #define FUEL2_COMPARE OCR3B
76 #define FUEL3_COMPARE OCR3C
77 #define FUEL4_COMPARE OCR4B //Replaces ignition 6
78 #define FUEL5_COMPARE OCR4C //Replaces ignition 5
79 #define FUEL6_COMPARE OCR4A //Replaces ignition 4
80 #define FUEL7_COMPARE OCR5C //Replaces ignition 3
81 #define FUEL8_COMPARE OCR5B //Replaces ignition 2
82
83 #define IGN1_COMPARE OCR5A
84 #define IGN2_COMPARE OCR5B
85 #define IGN3_COMPARE OCR5C
86 #define IGN4_COMPARE OCR4A //Replaces injector 6
87 #define IGN5_COMPARE OCR4C //Replaces injector 5
88 #define IGN6_COMPARE OCR4B //Replaces injector 4
89 #define IGN7_COMPARE OCR3C //Replaces injector 3
90 #define IGN8_COMPARE OCR3B //Replaces injector 2
91
92 //Note that the interrupt flag is reset BEFORE the interrupt is enabled
93static inline void FUEL1_TIMER_ENABLE(void) { TIFR3 |= (1<<OCF3A) ; TIMSK3 |= (1 << OCIE3A); } //Turn on the A compare unit (ie turn on the interrupt)
94static inline void FUEL2_TIMER_ENABLE(void) { TIFR3 |= (1<<OCF3B); TIMSK3 |= (1 << OCIE3B); } //Turn on the B compare unit (ie turn on the interrupt)
95static inline void FUEL3_TIMER_ENABLE(void) { TIFR3 |= (1<<OCF3C); TIMSK3 |= (1 << OCIE3C); } //Turn on the C compare unit (ie turn on the interrupt)
96static inline void FUEL4_TIMER_ENABLE(void) { TIFR4 |= (1<<OCF4B); TIMSK4 |= (1 << OCIE4B); } //Turn on the B compare unit (ie turn on the interrupt)
97static inline void FUEL5_TIMER_ENABLE(void) { TIFR4 |= (1<<OCF4C); TIMSK4 |= (1 << OCIE4C); } //Turn on the C compare unit (ie turn on the interrupt)
98static inline void FUEL6_TIMER_ENABLE(void) { TIFR4 |= (1<<OCF4A); TIMSK4 |= (1 << OCIE4A); } //Turn on the A compare unit (ie turn on the interrupt)
99static inline void FUEL7_TIMER_ENABLE(void) { TIFR5 |= (1<<OCF5C); TIMSK5 |= (1 << OCIE5C); } //
100static inline void FUEL8_TIMER_ENABLE(void) { TIFR5 |= (1<<OCF5B); TIMSK5 |= (1 << OCIE5B); } //
101
102static inline void FUEL1_TIMER_DISABLE(void) { TIMSK3 &= ~(1 << OCIE3A); } // //Turn off this output compare unit
103static inline void FUEL2_TIMER_DISABLE(void) { TIMSK3 &= ~(1 << OCIE3B); } // //Turn off this output compare unit
104static inline void FUEL3_TIMER_DISABLE(void) { TIMSK3 &= ~(1 << OCIE3C); } // //Turn off this output compare unit
105static inline void FUEL4_TIMER_DISABLE(void) { TIMSK4 &= ~(1 << OCIE4B); }
106static inline void FUEL5_TIMER_DISABLE(void) { TIMSK4 &= ~(1 << OCIE4C); } // //
107static inline void FUEL6_TIMER_DISABLE(void) { TIMSK4 &= ~(1 << OCIE4A); } // //
108static inline void FUEL7_TIMER_DISABLE(void) { TIMSK5 &= ~(1 << OCIE5C); } // //
109static inline void FUEL8_TIMER_DISABLE(void) { TIMSK5 &= ~(1 << OCIE5B); } //
110
111 //These have the TIFR5 bits set to 1 to clear the interrupt flag. This prevents a false interrupt being called the first time the channel is enabled.
112static inline void IGN1_TIMER_ENABLE(void) { TIFR5 |= (1<<OCF5A); TIMSK5 |= (1 << OCIE5A); } //Turn on the A compare unit (ie turn on the interrupt)
113static inline void IGN2_TIMER_ENABLE(void) { TIFR5 |= (1<<OCF5B); TIMSK5 |= (1 << OCIE5B); }//Turn on the B compare unit (ie turn on the interrupt)
114static inline void IGN3_TIMER_ENABLE(void) { TIFR5 |= (1<<OCF5C); TIMSK5 |= (1 << OCIE5C); }//Turn on the C compare unit (ie turn on the interrupt)
115static inline void IGN4_TIMER_ENABLE(void) { TIFR4 |= (1<<OCF4A); TIMSK4 |= (1 << OCIE4A); }//Turn on the A compare unit (ie turn on the interrupt)
116static inline void IGN5_TIMER_ENABLE(void) { TIFR4 |= (1<<OCF4C); TIMSK4 |= (1 << OCIE4C); } //Turn on the A compare unit (ie turn on the interrupt)
117static inline void IGN6_TIMER_ENABLE(void) { TIFR4 |= (1<<OCF4B); TIMSK4 |= (1 << OCIE4B); } //Replaces injector 4
118static inline void IGN7_TIMER_ENABLE(void) { TIMSK3 |= (1 << OCIE3C); }//Replaces injector 3
119static inline void IGN8_TIMER_ENABLE(void) { TIMSK3 |= (1 << OCIE3B); } //Replaces injector 2
120
121static inline void IGN1_TIMER_DISABLE(void) { TIMSK5 &= ~(1 << OCIE5A); } //Turn off this output compare unit
122static inline void IGN2_TIMER_DISABLE(void) { TIMSK5 &= ~(1 << OCIE5B); } //Turn off this output compare unit
123static inline void IGN3_TIMER_DISABLE(void) { TIMSK5 &= ~(1 << OCIE5C); } //Turn off this output compare unit
124static inline void IGN4_TIMER_DISABLE(void) { TIMSK4 &= ~(1 << OCIE4A); } //Turn off this output compare unit
125static inline void IGN5_TIMER_DISABLE(void) { TIMSK4 &= ~(1 << OCIE4C); } //Turn off this output compare unit
126static inline void IGN6_TIMER_DISABLE(void) { TIMSK4 &= ~(1 << OCIE4B); } //Replaces injector 4
127static inline void IGN7_TIMER_DISABLE(void) { TIMSK3 &= ~(1 << OCIE3C); } //Replaces injector 3
128static inline void IGN8_TIMER_DISABLE(void) { TIMSK3 &= ~(1 << OCIE3B); } //Replaces injector 2
129
130 #define MAX_TIMER_PERIOD 262140UL //The longest period of time (in uS) that the timer can permit (IN this case it is 65535 * 4, as each timer tick is 4uS)
131 #define uS_TO_TIMER_COMPARE(uS1) ((uS1) >> 2) //Converts a given number of uS into the required number of timer ticks until that time has passed
132
133/*
134***********************************************************************************************************
135* Auxiliaries
136*/
137 #define ENABLE_BOOST_TIMER() TIMSK1 |= (1 << OCIE1A)
138 #define DISABLE_BOOST_TIMER() TIMSK1 &= ~(1 << OCIE1A)
139 #define ENABLE_VVT_TIMER() TIMSK1 |= (1 << OCIE1B)
140 #define DISABLE_VVT_TIMER() TIMSK1 &= ~(1 << OCIE1B)
141
142 #define BOOST_TIMER_COMPARE OCR1A
143 #define BOOST_TIMER_COUNTER TCNT1
144 #define VVT_TIMER_COMPARE OCR1B
145 #define VVT_TIMER_COUNTER TCNT1
146
147/*
148***********************************************************************************************************
149* Idle
150*/
151 #define IDLE_COUNTER TCNT1
152 #define IDLE_COMPARE OCR1C
153
154 #define IDLE_TIMER_ENABLE() TIMSK1 |= (1 << OCIE1C)
155 #define IDLE_TIMER_DISABLE() TIMSK1 &= ~(1 << OCIE1C)
156
157/*
158***********************************************************************************************************
159* CAN / Second serial
160*/
161#if ( defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) )
162 #define secondarySerial_AVAILABLE
163#endif
164#define SECONDARY_SERIAL_T HardwareSerial
165
166#endif //CORE_AVR
167#endif //AVR2560_H
rshift
static uint32_t rshift(uint32_t a)
Bitwise right shift - generic, unoptimized, case.
Definition bit_shifts.h:349
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