Welcome to the FOME 2511 release!

Breaking Changes

• Closed loop boost control tables now have their own axes, rather than sharing with open loop. If using closed loop boost control, you will have to reconfigure the X/Y axes on the closed loop table.

Added

• Allow fractional tachometer pulse ratio for fine tachometer calibration
• Add an option to ramp the idle target down as engine speed returns to idle. Makes the running -> idle transition much smoother while in closed loop mode #570
• Lua functions storePersistentValue/getPersistentValue to persist values in backup memory between reboots #592
• Fully disable VVT when the target is 0. This prevents trying to control VVT when near the stop, which can damage the locking pin on some engines.
• Automatic cylinder balancing of MAP sensor readings for smoother running at high load #610
• Table-based injector small pulse compensation #609
• MAF filtering for better transient response
• Minimum injector pulse width setting
• Allow selection of DTC severity #625
• AC pressure switch & startup delay (#623, #660, #661, #662)
• Y axis override for VVT target
• Feature to skip initial trigger pulses for noisy triggers #634
• VVT open loop "hold" table #638
• Fire DTCs for detectable cam/crank errors
• Selectable X/Y axis channels for boost control #861
• Implement a trailing spark table (for rotary and dual-plug engines) #695

Fixed

• CAN reception on STM32H7-based ECUs
• Speed up bootloader launch by 250ms
• Move ETB sensor redundancy from Experimental/Broken/Parking Lot to sensor dialogs #165
• K20/K24 intake VVT angle reads correctly
• Easier to decipher check engine light blink codes #653
• TunerStudio: Provide sensible EGT sensor "high" alerting threshold defaults
• Improve knock detection dialog UX
• Increase memory available to Lua on STM32F4 and STM32F7-based ECUs

Removed

• Removed A/C-based alternator open-loop duty adder (#660)

New Contributors

• @rozap made their first contribution in #584
• @mikaelhirn made their first contribution in #618

Full Changelog: release_250220_04...release_251103_01

Welcome to the FOME 2502 release!

Breaking Changes

• Large data logging improvements and changes - in TunerStudio, you may need to re-create your dash layouts from default and then re-add any broken gauges and indicators.

Added

• Read (some) OBD2 error codes using a normal scan tool! Currently limited to some common sensor errors. (#529 thank you @dynfer for implementation, @paleppp for testing, and others!)
• Support Miata NA CAS "CMP" signal as a cam input (if you've installed a 36-1 crank trigger on an NA, for example) #495
• Support 4 independent wideband O2 channels, and 4 fuel trim banks
• Flash error codes for some sensors using the check engine light #526
• Implement knock sensing support for STM32H7 chips
• Show knock sensing window on FOME console engine sniffer

Fixed

• Idle VE table's indicator dot properly tracks when using an idle VE Y-axis override
• Minor performance improvements to injection/ignition scheduling
• Per-cylinder knock sensing while in wasted spark mode (fixed by #553)
• Improved transitions between fuel/spark modes, improves cranking and startup (#551, #553. #554)

Full Changelog: release_240916_03...release_250220_01

Welcome to the FOME 2409 release!

Added

• Staged injection: a second set of fuel injectors that inject part of the fuel load when you run out of primary injector
• VE/Ign/Boost blend tables can select a Y axis override for even more flexibility
• Added Lua function getAuxDigital for parity with rusEFI #351
• Optional table to change after start idle taper time #369 (thank you, @Krakert!)
• Increased precision available for Lua tables
• Add EGT values to CAN broadcast format #398
• Add options to enable/disable optional CAN frames (cams, EGT so far)
• Add 1-5-4-8-3-7-2-6 and 1-6-5-10-2-7-3-8-4-9 firing orders
• Console command set_sensor_mock now accepts a sensor by name, instead of index. Example: set_sensor_mock CLT 85.5
• TunerStudio UI improvements (#436, etc)
• Dropdown selector for popular gearbox ratios (#358, thank you @alrijleh and @nmschulte!)
• Add two more aux linear sensors #476
• Support wasted spark on odd cylinder count and odd-fire engines. Improves startup and allows running without a cam sensor!
• Add an option for the DFCO MAP threshold to use a table dependent upon RPM #485 (thank you @alrijleh!)
• Option to disable DFCO on gear shift #487
• Ability to use an 8x8 table for after-start fuel multiplier that depends on CLT and engine run time
• Start-up tachometer sweep!

Fixed

• Improve performance with Lua CAN reception of a high volume of frames
• Displayed units in TunerStudio change when switching between volume vs. mass injector flow modes #42
• Make Toyota "3 Tooth Cam" decoder more robust #382
• Flex sensor-derived fuel temperature indication works properly
• Fix a scenario where noisy trigger can cause overdwell rusefi/rusefi#6349
• Fix decel fuel cutoff (DFCO) on engines without a MAP sensor #457
• Automatic calculation of knock sense frequency based on cylinder bore #379
• Removed MAP sampling option that can result in inaccurate MAP sensor readings
• Improve TunerStudio performance on STM32F4-based ECUs #474
• Inhibit VVT control if the cam position sensor dies
• Fix "Alpha-N IAT density correction" option

New Contributors

• @125jdavis made their first contribution in #338
• @dynfer made their first contribution in #409
• @DenisMitchell made their first contribution in #463
• @alrijleh made their first contribution in #471

Full Changelog: release_231224_05...release_240916_02

Welcome to the FOME 2312 release!

Breaking Changes

• Simplified VVT single tooth cam modes. "Single tooth second half" and "single tooth first half" have been replaced by simply "single tooth". This may require re-setting your trigger and VVT timing offsets if you used "single tooth first half" prior to this change. #178

Added

• Log per-cylinder true ignition timing (includes trim, knock retard, etc) #76
• Add mode for CLT/IAT sensors that are installed "high side" instead of typical "low side" #116
• Automatic supply voltage compensation for VVT solenoids, giving more stable control as battery voltage changes #209
• Configurable ignition timing limits, adding safety particularly for engines running wasted spark with a large cam #211
• Improved injection, ignition bench test UI and functionality: More gauges, fuel pump on/off buttons for injector testing, and configurable duration/count #219
• Preset for Mazdaspeed Miata (NB) IAT sensor
• Option to compensate Alpha-N fueling with intake air temperature
• Gasoline-scale AFR gauge: instead of showing true AFR, show "gasoline scale" where 14.7 means stoichiometric
• Decode fuel temperature from flex fuel sensors #254
• Allow brief operation over 100% injector duty cycle and add configurable duty cycle limits #215
• Buttons to bump VVT targets for testing/PID tuning
• Improved serial port selection for FOME console and firmware update
• Better default configuration values for some advanced features
• Support BMW E8x/E9x CAN speed sensor input (works for standalone MK60e5 too)

Fixed

• Improved bench test resolution (more usable for testing injectors, dwell, etc)
• Maximum knock retard table displays correct Y axis values in TunerStudio
• Make errors about fuel pressure sensors less aggressive #111 #117
• Always operate in "two wire" mode for batch fuel, fixing batch firing order #23
• Fix "Toyota 3 Tooth Cam" VVT mode (1JZ, 2JZ, 1G, etc) actually works now #237
• Fix autotune while TS project is in AFR mode - corrections now made properly for target AFR table values
• Changing idle stepper settings causes kernel panic #265
• Data log channel "Fuel: Injection timing SOI" indicates correct values

New Contributors

• @rusefillc made their first contribution in #170

• @mi-hol made their first contribution in #171

• @opelpanfan made their first contribution in #270

• @Krakert made their first contribution in #275

Full Changelog: release_230512_01...release_231224_05

Welcome to the FOME 2305 release.

Added

• Detected gear and wastegate position to CAN format
• Y axis override for Idle VE table. Helps with idle quality on ITB setups. #94
• Blend tables for boost open and closed loop control #73
• Log channels to make MegaLogViewer VE Analyze work #82
• Enable knock sensing on F407 Discovery build, hardcoded to PA3 #105
• Support gauge and differential fuel pressure sensors (in addition to absolute) #32
• Snapshot builds have a date code in the folder name #91

Fixed

• Sensor checker wasn't checking sensors
• Removed vestigial warning about unset ignition pins #79
• Gear detection sometimes didn't work #86
• Restore built-in INI storage on STM32F7-based ECUs
• Improve log field names, easier to find the channel you're looking for #98

New Contributors

• @nmschulte made their first contribution in #92
• @karniv00l made their first contribution in #106

Full Changelog: release_230411_01...release_230512_01

Fixes gear detection so that it works without without pressing the Burn button.

Full Changelog: release_230411_03...release_230411_04

Fixes the console updater looking for the wrong binary file to flash.

Full Changelog: release_230411_02...release_230411_03

FOME's first release!

Don't expect much, this is just a snapshot so that we have some release published. It may not be polished, but it should work fine enough.