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speeduino
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This commit is contained in:
Josh Stewart 2016-01-22 12:40:17 +11:00
parent c83bd863d9
commit c3b91bbdfe
2 changed files with 1 additions and 4 deletions
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2
idle.ino
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@ -45,7 +45,7 @@ void initialiseIdle()
idle2_pin_port = portOutputRegister(digitalPinToPort(pinIdle2));
idle2_pin_mask = digitalPinToBitMask(pinIdle2);
idle_pwm_max_count = 1000000L / (16 * configPage3.idleFreq * 2); //Converts the frequency in Hz to the number of ticks (at 16uS) it takes to complete 1 cycle. Note that the frequency is divided by 2 coming from TS to allow for up to 512hz
TIMSK4 |= (1 << OCIE4C); //Turn on the A compare unit (ie turn on the interrupt)
TIMSK4 |= (1 << OCIE4C); //Turn on the C compare unit (ie turn on the interrupt)
break;
case 3:

3
scheduler.ino
View File

@ -121,7 +121,6 @@ void setIgnitionSchedule1(void (*startCallback)(), unsigned long timeout, unsign
{
if(ignitionSchedule1.Status == RUNNING) { return; } //Check that we're not already part way through a schedule
//We need to calculate the value to reset the timer to (preload) in order to achieve the desired overflow time
//As the timer is ticking every 4uS (Time per Tick = (Prescale)*(1/Frequency))
if (timeout > 262140) { return; } // If the timeout is >4x (Each tick represents 4uS) the maximum allowed value of unsigned int (65525), the timer compare value will overflow when appliedcausing erratic behaviour such as erroneous sparking.
OCR5A = TCNT5 + (timeout >> 2); //As there is a tick every 4uS, there are timeout/4 ticks until the interrupt should be triggered ( >>2 divides by 4)
@ -136,7 +135,6 @@ void setIgnitionSchedule2(void (*startCallback)(), unsigned long timeout, unsign
{
if(ignitionSchedule2.Status == RUNNING) { return; } //Check that we're not already part way through a schedule
//We need to calculate the value to reset the timer to (preload) in order to achieve the desired overflow time
//As the timer is ticking every 4uS (Time per Tick = (Prescale)*(1/Frequency))
if (timeout > 262140) { return; } // If the timeout is >4x (Each tick represents 4uS) the maximum allowed value of unsigned int (65525), the timer compare value will overflow when applied causing erratic behaviour such as erroneous sparking.
OCR5B = TCNT5 + (timeout >> 2); //As there is a tick every 4uS, there are timeout/4 ticks until the interrupt should be triggered ( >>2 divides by 4)
@ -151,7 +149,6 @@ void setIgnitionSchedule3(void (*startCallback)(), unsigned long timeout, unsign
{
if(ignitionSchedule3.Status == RUNNING) { return; } //Check that we're not already part way through a schedule
//We need to calculate the value to reset the timer to (preload) in order to achieve the desired overflow time
//The timer is ticking every 4uS (Time per Tick = (Prescale)*(1/Frequency))
if (timeout > 262140) { return; } // If the timeout is >4x (Each tick represents 4uS) the maximum allowed value of unsigned int (65525), the timer compare value will overflow when applied causing erratic behaviour such as erroneous sparking.
OCR5C = TCNT5 + (timeout >> 2); //As there is a tick every 4uS, there are timeout/4 ticks until the interrupt should be triggered ( >>2 divides by 4)