Commit Graph

9 Commits

Author SHA1 Message Date
Josh Stewart a94b1231f3 Revert "Include current inj angle in injector timeout calculation. Fixes #1181"
This reverts commit 97b72b027e.
2024-04-05 16:31:36 +11:00
Josh Stewart 97b72b027e Include current inj angle in injector timeout calculation. Fixes #1181 2024-04-05 15:21:47 +11:00
tx_haggis e08d5dab25
test_math: make unit tests pass on Teensy (#1137)
Required converting dwell, actualDwell, dwellCrank & dwellRun to unsigned.
2024-03-21 11:45:10 +11:00
Daniel Tobias 3a712baf23
Comment typos correction (#1189)
* basic spelling fixes

* basic spelling fixes, external libs
2024-03-21 11:37:45 +11:00
tx_haggis 963f6317ba
Save 600+ bytes RAM (step 5 of 9) - De-duplicate setSchedule functions (#1111)
* initialiseSchedulers: factor out shared code.

* Proxy setFuelSchedule\d through generic
setFuelSchedule() function

* Directly call setFuelSchedule

* Simplify unit tests

* Proxy setIgnitionSchedule\d through generic
setIgnitionSchedule() function

* Directly call setIgnitionSchedule

* Simplify unit tests

* Optimize by partially inlining
the set[Fuel|Ignition]Schedule funcs

* Use the embedded schedule compare
& counter members instead of using
hardcoded individual channel macros.

* Unit test adjustCrankAngle
2023-11-24 09:35:43 +11:00
tx_haggis 9bbd16c81b
Performance: optimize division (#1082)
* Add udiv_32_16

* Apply udiv_32_16() where possible

* Convert udiv_32_16 to assembler
It's worth 20 loop/s

* Remove unused functions

* Remove degreesPeruSx2048 - unused

* Remove angleToTime - replace with direct calls
1. Drop angleToTime()
It's slow, only partially implemented and adds zero value
(and has MISRA violations)
2. Consistent function naming
3. Doxygen

* triggerPri_Nissan360 shouldn't set timePerDegree.
It will be overwritten every loop by doCrankSpeedCalcs()

* Use angleToTimeMicroSecPerDegree() instead of timePerDegree
No loss in performance
Increased injection open/close time accuracy (so unit test values must change)
Can remove timePerDegree global.

* Hide (encapsulate) crank math globals.

* Base all angle to time conversions on decoder computed variables.
This is within 2us of the revolution based method
and is much faster - which is essentially zero percent change.

* Performance: move calculation of degreesPeruSx32768
into decoders.
Remove doCrankSpeedCalcs() - it's doing nothing
at the moment.

* Apply libdivide to triggerSetEndTeeth functions.
Since triggerToothAngle is set once at initialization
time, we can generate the libdivide struct
once and reuse it many times.

* Remove lastToothCalcAdvance - unused

* Replace 16-bit division with shift

* Replace 32-bit divison with 16-bit division

* Avoid 32-bit division; use div100()

* inline percentage()

* Optimize div100()

* MISRA fixes

* Replace magic numbers with #defs

* Replace libdivide structs with inline constants
No perf or memory changes

* Use fixed types for PWM max count variables

* Accurate rounded integer division
* Formalise rounding behavior (DIV_ROUND_CORRECT)
* Apply DIV_ROUND_CORRECT to DIV_ROUND_CLOSEST(),
UDIV_ROUND_CLOSEST(), div100(), div360(),
percentage() & halfPercentage()
* Add, fix & improve unit tests

* Add udiv_32_16_closest()

* Perf: Limit percentage calculations to 16-bits

* MISRA fixes

* Add compare_executiontime() to encapsulate common perf testing code

* Signed to unsigned division

* Convert ignitionLimits() to an inline function.
Slight speed up, probably due to removing
multiple evaluations of macro arguments.

* Split unit tests up.

* udiv_32_16 - check for valid parameters
2023-11-06 09:10:08 +11:00
tx_haggis b03db96ad7
Save 600+ bytes RAM (step 4 of 9) - deduplicate scheduler ISR functions (#1063) 2023-10-07 08:25:26 +11:00
tx_haggis d9b5554a8c
Save 600+ bytes RAM (step 3 of 9) - remove per-channel schedule calculation functions, use generic equivalents instead (#1018)
* calculateInjector1Timeout proxies calculateInjectorNTimeout
Unit test still pass.

* Remove calculateInjector1Timeout,
Replace with call to calculateInjectorTimeout
All unit tests still pass.

* Remove unecassary unit test

* calculateIgnition1Timeout proxies calculateIgnitionNTimeout
Unit test all pass

* Remove calculateIgnition1Timeout,
Replace with call to calculateIgnitionTimeout
All unit tests still pass.

* Remove unecassary unit test

* calculateIgnitionAngle\d proxies
calculateIgnitionAngle
Unit tests all pass

* Remove calculateIgnitionAngle\d
Just call calculateIgnitionAngle() directly

* Route rotary ignition angle calcs
through generic calculateIgnitionTrailingRotary
function.

* Remove calculateIgnitionAngle\d
Just call calculateIgnitionTrailingRotary() directly

* calculateInjectorStartAngle: inject all parameters
Do not rely on global state
Easier unit testing.

* calculateIgnitionAngle: inject all parameters
Do not rely on global state
Easier unit testing.

* Pull all ignition global vars into schedule_calcs

* Conditional compile for schedule calc vars
Saves memory

* Optimize: break out angleToTimeIntervalRev
from angleToTime. The new function will
always be inlined.

* Optimize - simpler code path
when no channel offset (zero)

Some optimization of arithmetic operations.

* Fix unit tests

* Fix bug on injector angle calculations
Need while loops to correctly bring intermediate
values into range

---------

Co-authored-by: Josh Stewart <josh@noisymime.org>
2023-06-26 12:13:53 +10:00
tx_haggis 6fbf6db752
Fixes for Arduino IDE (#1042) 2023-04-29 14:57:57 +10:00