170 lines
6.8 KiB
C++
170 lines
6.8 KiB
C++
#if defined(CORE_STM32)
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#include "board_stm32.h"
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#include "globals.h"
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#include "auxiliaries.h"
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#include "idle.h"
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#include "scheduler.h"
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#include "HardwareTimer.h"
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#if defined(STM32F4)
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//These should really be in the stm32GENERIC libs, but for somereason they only have timers 1-4
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#include <stm32_TIM_variant_11.h>
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HardwareTimer Timer5(TIM5, chip_tim5, sizeof(chip_tim5) / sizeof(chip_tim5[0]));
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HardwareTimer Timer8(TIM8, chip_tim8, sizeof(chip_tim8) / sizeof(chip_tim8[0]));
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#endif
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void initBoard()
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{
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/*
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***********************************************************************************************************
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* General
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*/
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#define FLASH_LENGTH 8192
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/*
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***********************************************************************************************************
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* Idle
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*/
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if( (configPage6.iacAlgorithm == IAC_ALGORITHM_PWM_OL) || (configPage6.iacAlgorithm == IAC_ALGORITHM_PWM_CL) )
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{
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idle_pwm_max_count = 1000000L / (configPage6.idleFreq * 2); //Converts the frequency in Hz to the number of ticks (at 2uS) it takes to complete 1 cycle. Note that the frequency is divided by 2 coming from TS to allow for up to 5KHz
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}
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//This must happen at the end of the idle init
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Timer1.setMode(4, TIMER_OUTPUT_COMPARE);
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//timer_set_mode(TIMER1, 4, TIMER_OUTPUT_COMPARE;
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if(idle_pwm_max_count > 0) { Timer1.attachInterrupt(4, idleInterrupt);} //on first flash the configPage4.iacAlgorithm is invalid
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Timer1.resume();
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/*
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***********************************************************************************************************
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* Timers
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*/
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#if defined(ARDUINO_BLACK_F407VE) || defined(STM32F4) || defined(_STM32F4_)
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Timer8.setPeriod(1000); // Set up period
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Timer8.setMode(1, TIMER_OUTPUT_COMPARE);
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Timer8.attachInterrupt(1, oneMSInterval);
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Timer8.resume(); //Start Timer
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#else
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Timer4.setPeriod(1000); // Set up period
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Timer4.setMode(1, TIMER_OUTPUT_COMPARE);
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Timer4.attachInterrupt(1, oneMSInterval);
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Timer4.resume(); //Start Timer
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#endif
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pinMode(LED_BUILTIN, OUTPUT); //Visual WDT
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/*
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***********************************************************************************************************
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* Auxilliaries
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*/
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//2uS resolution Min 8Hz, Max 5KHz
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boost_pwm_max_count = 1000000L / (2 * configPage6.boostFreq * 2); //Converts the frequency in Hz to the number of ticks (at 2uS) it takes to complete 1 cycle. The x2 is there because the frequency is stored at half value (in a byte) to allow freqneucies up to 511Hz
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vvt_pwm_max_count = 1000000L / (2 * configPage6.vvtFreq * 2); //Converts the frequency in Hz to the number of ticks (at 2uS) it takes to complete 1 cycle
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//Need to be initialised last due to instant interrupt
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Timer1.setMode(2, TIMER_OUTPUT_COMPARE);
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Timer1.setMode(3, TIMER_OUTPUT_COMPARE);
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if(boost_pwm_max_count > 0) { Timer1.attachInterrupt(2, boostInterrupt);}
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if(vvt_pwm_max_count > 0) { Timer1.attachInterrupt(3, vvtInterrupt);}
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Timer1.resume();
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/*
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***********************************************************************************************************
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* Schedules
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*/
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#if defined(ARDUINO_ARCH_STM32) // STM32GENERIC core
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//see https://github.com/rogerclarkmelbourne/Arduino_STM32/blob/754bc2969921f1ef262bd69e7faca80b19db7524/STM32F1/system/libmaple/include/libmaple/timer.h#L444
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Timer1.setPrescaleFactor((HAL_RCC_GetHCLKFreq() * 2U)-1); //2us resolution
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Timer2.setPrescaleFactor((HAL_RCC_GetHCLKFreq() * 2U)-1); //2us resolution
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Timer3.setPrescaleFactor((HAL_RCC_GetHCLKFreq() * 2U)-1); //2us resolution
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#else //libmaple core aka STM32DUINO
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//see https://github.com/rogerclarkmelbourne/Arduino_STM32/blob/754bc2969921f1ef262bd69e7faca80b19db7524/STM32F1/system/libmaple/include/libmaple/timer.h#L444
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#if defined (STM32F1) || defined(__STM32F1__)
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//(CYCLES_PER_MICROSECOND == 72, APB2 at 72MHz, APB1 at 36MHz).
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//Timer2 to 4 is on APB1, Timer1 on APB2. http://www.st.com/resource/en/datasheet/stm32f103cb.pdf sheet 12
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Timer1.setPrescaleFactor((72 * 2U)-1); //2us resolution
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Timer2.setPrescaleFactor((36 * 2U)-1); //2us resolution
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Timer3.setPrescaleFactor((36 * 2U)-1); //2us resolution
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#elif defined(STM32F4)
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//(CYCLES_PER_MICROSECOND == 168, APB2 at 84MHz, APB1 at 42MHz).
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//Timer2 to 14 is on APB1, Timers 1, 8, 9 and 10 on APB2. http://www.st.com/resource/en/datasheet/stm32f407vg.pdf sheet 120
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Timer1.setPrescaleFactor((84 * 2U)-1); //2us resolution
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Timer2.setPrescaleFactor((42 * 2U)-1); //2us resolution
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Timer3.setPrescaleFactor((42 * 2U)-1); //2us resolution
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#endif
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#endif
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Timer2.setMode(1, TIMER_OUTPUT_COMPARE);
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Timer2.setMode(2, TIMER_OUTPUT_COMPARE);
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Timer2.setMode(3, TIMER_OUTPUT_COMPARE);
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Timer2.setMode(4, TIMER_OUTPUT_COMPARE);
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Timer3.setMode(1, TIMER_OUTPUT_COMPARE);
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Timer3.setMode(2, TIMER_OUTPUT_COMPARE);
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Timer3.setMode(3, TIMER_OUTPUT_COMPARE);
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Timer3.setMode(4, TIMER_OUTPUT_COMPARE);
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Timer1.setMode(1, TIMER_OUTPUT_COMPARE);
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//Attach interupt functions
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//Injection
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Timer2.attachInterrupt(1, fuelSchedule1Interrupt);
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Timer2.attachInterrupt(2, fuelSchedule2Interrupt);
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Timer2.attachInterrupt(3, fuelSchedule3Interrupt);
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Timer2.attachInterrupt(4, fuelSchedule4Interrupt);
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#if (INJ_CHANNELS >= 5)
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Timer5.attachInterrupt(1, fuelSchedule5Interrupt);
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#endif
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#if (INJ_CHANNELS >= 6)
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Timer5.attachInterrupt(2, fuelSchedule6Interrupt);
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#endif
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#if (INJ_CHANNELS >= 7)
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Timer5.attachInterrupt(3, fuelSchedule7Interrupt);
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#endif
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#if (INJ_CHANNELS >= 8)
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Timer5.attachInterrupt(4, fuelSchedule8Interrupt);
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#endif
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//Ignition
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#if (IGN_CHANNELS >= 1)
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Timer3.attachInterrupt(1, ignitionSchedule1Interrupt);
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#endif
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#if (IGN_CHANNELS >= 2)
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Timer3.attachInterrupt(2, ignitionSchedule2Interrupt);
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#endif
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#if (IGN_CHANNELS >= 3)
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Timer3.attachInterrupt(3, ignitionSchedule3Interrupt);
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#endif
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#if (IGN_CHANNELS >= 4)
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Timer3.attachInterrupt(4, ignitionSchedule4Interrupt);
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#endif
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#if (IGN_CHANNELS >= 5)
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Timer4.attachInterrupt(1, ignitionSchedule5Interrupt);
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#endif
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#if (IGN_CHANNELS >= 6)
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Timer4.attachInterrupt(2, ignitionSchedule6Interrupt);
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#endif
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#if (IGN_CHANNELS >= 7)
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Timer4.attachInterrupt(3, ignitionSchedule7Interrupt);
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#endif
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#if (IGN_CHANNELS >= 8)
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Timer4.attachInterrupt(4, ignitionSchedule8Interrupt);
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#endif
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Timer1.resume();
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Timer2.resume();
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Timer3.resume();
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#if (IGN_CHANNELS >= 5)
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Timer4.resume();
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#endif
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#if (INJ_CHANNELS >= 5)
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Timer5.resume();
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#endif
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}
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uint16_t freeRam()
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{
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char top = 't';
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return &top - reinterpret_cast<char*>(sbrk(0));
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}
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#endif |