[wassis67]

Hi guys, I'm new here, but I've been using Speeduino (0.4.3b) for some time and I would also like a sequential solution for 8 cylinder engines with more features in TunerStudio, por example, closed loop digital AC control it would be quite useful.

A professional card layout would also be welcome, with all power drivers mounted on a single heatsink and single output connector integrated into the PCB, and including native Bluetooth, VR conditioner and DRV8825 driver circuits to rival Megasquirt 2 and 3 cards.

Does anyone meet the challenge?

[theonewithin]

Firmware doesn't exist for most of that so it's a lot more than just a hardware issue...

[pazi88]

Josh might have something coming

[NickZ]

there are already boards available upto 8 cylinders, we are just waiting on the firmware to catch up.

[pazi88]

Master is already up to 8.

[joey120373]

[*] Master is already up to 8.[*]

Can you explain this? What or who is master, and up to 8?

Does this mean there is a firmware available that supports 8 cylinder sequential?

Thanks

[pazi88]

[*] Master is already up to 8.[*]

Can you explain this? What or who is master, and up to 8?

Does this mean there is a firmware available that supports 8 cylinder sequential?

Thanks

If you use the current master of speeduino fw, it can do 8x8 sequential. With MCUs that support it. Which is basically Teensy and STM32F407. But for that you also need to have board that supports that and have pin definition that includes pins for injectors 5-8 and ignition outputs 6-8.

[joey120373]

Thanks! I did not realize the firmware could do that, looks like I need to start on a teensy board ( it’s what I have on hand )

Very cool!

[joey120373]

So if i were to add the pin definitions for injector 5-8 and ignition 5-8 to the init.ino

#if defined(CORE_TEENSY35)
case 50:
//Pin mappings as per the teensy rev A shield
pinInjector1 = 2; //Output pin injector 1 is on
pinInjector2 = 10; //Output pin injector 2 is on
pinInjector3 = 6; //Output pin injector 3 is on
pinInjector4 = 9; //Output pin injector 4 is on

pinInjector5 = x;
pinInjector6 = x;
pinInjector7 = x;
pinInjector8 = x;
//Placeholder only - NOT USED:
//pinInjector5 = 13;
pinCoil1 = 29; //Pin for coil 1
pinCoil2 = 30; //Pin for coil 2
pinCoil3 = 31; //Pin for coil 3 - ONLY WITH DB2
pinCoil4 = 32; //Pin for coil 4 - ONLY WITH DB2

pinCoil5 = x;
pinCoil6 = x;
pinCoil7 = x;
pinCoil8 = x;



//Placeholder only - NOT USED:
//pinCoil5 = 46;

and then add 4 more injector Fets and ingition drivers, The code would work for 8x8 sequential?

[pazi88]

That's correct. Just be aware that you will quicly run out of pins with teensy

BTW you also need to change the board in speeduino.ini to have more that 4x4 channels to get the +4cyl sequential settings to show up in TS.