Search found 17 matches
- Sun May 03, 2020 8:57 pm
- Forum: Dev: Hardware
- Topic: DEAD DESIGN rusEfi own wide band controller board add-on using CJ125
- Replies: 364
- Views: 343002
Re: rusEfi own wide band controller board add-on using CJ125
Why can't all that be done with existing rusEFI software and hardware? Let me answer this universal question with a universal answer, in two parts. See https://github.com/rusefi/rusefi/wiki/I_have_an_idea Would the CJ125 hardware and software interface to rusEFI take less human resources to complet...
- Sun May 03, 2020 6:57 pm
- Forum: Dev: Hardware
- Topic: DEAD DESIGN rusEfi own wide band controller board add-on using CJ125
- Replies: 364
- Views: 343002
Re: rusEfi own wide band controller board add-on using CJ125
I think things are not promising for rusEFI CJ125 unless we known some OEM ECU as a source for used parts? Is a CJ125 just excessive complexity? 14point7's open source wideband controller just has two PID controllers (actually PI controllers), one for the heater and one for Ia with the heater PWM c...
- Wed Mar 11, 2020 10:41 pm
- Forum: Dev: Hardware
- Topic: EFI for small engines
- Replies: 118
- Views: 109010
Re: EFI for small engines
Ural motorcycles used a similar idea for a few years that was made by Electro Jet:
http://www.electrojet.com/products/
And Walbro seems to also be doing something similar:
http://www.walbro.com/wp-content/uploads/2015/12/Walbro_EEM_Injection_Mower_PS_EN.pdf
http://www.electrojet.com/products/
And Walbro seems to also be doing something similar:
http://www.walbro.com/wp-content/uploads/2015/12/Walbro_EEM_Injection_Mower_PS_EN.pdf
- Sat Jan 11, 2020 3:15 am
- Forum: Misc
- Topic: FPGA in ECU
- Replies: 43
- Views: 50059
Re: FPGA in ECU
As a theoretical fan of an FPGA coprocessor for an EFI board, here is an off the cuff assessment of what is needed at the bare minimum: SPI connection to the main MCU with the MCU handling the slow sensors and closed loop or table selection and the FPGA handling the time critical parts. There should...
- Thu Jan 09, 2020 7:27 pm
- Forum: Misc
- Topic: Is stm32f4 the right chip?
- Replies: 161
- Views: 387006
Re: Is stm32f4 the right chip?
If we're going to go after "ultra scheduling precision", By the way, this comment is not a recommendation that we do something different. There are still significant improvements to be made within the existing "fully software scheduled" world. Yeah, my iCE40 diversion isn't a fu...
- Thu Jan 09, 2020 7:25 pm
- Forum: Misc
- Topic: Is stm32f4 the right chip?
- Replies: 161
- Views: 387006
Re: Is stm32f4 the right chip?
You don't even need to measure the timing performance of an FPGA with real hardware. You can accurately simulate the whole thing beforehand, and something designed properly will be able to have hard timing guarantees about when edges will arrive. The prototype I wrote a few years ago was accurate t...
- Thu Jan 09, 2020 5:55 pm
- Forum: Misc
- Topic: Is stm32f4 the right chip?
- Replies: 161
- Views: 387006
Re: Is stm32f4 the right chip?
Infinityedge can you recommend a dev board for this fpga platform? Can you implement a hello world LED blinking controlled via SPI? iCE40 dev boards: https://www.crowdsupply.com/tinyfpga/tinyfpga-bx https://www.olimex.com/Products/FPGA/iCE40/iCE40HX1K-EVB/open-source-hardware https://www.crowdsuppl...
- Thu Jan 09, 2020 5:07 pm
- Forum: Misc
- Topic: Is stm32f4 the right chip?
- Replies: 161
- Views: 387006
Re: Is stm32f4 the right chip?
lets not discuss fpga here. please find existing topic or create a new one. The FPGA stuff was already broached a while back. Isn't this thread about changing hardware architectures from STM32F4 in order to get a more accurate timing response? An alternative to finding a faster chip with more timer...
- Thu Jan 09, 2020 3:28 am
- Forum: Misc
- Topic: Is stm32f4 the right chip?
- Replies: 161
- Views: 387006
Re: Is stm32f4 the right chip?
If anyone is interested in adding an FPGA co-processor, might I suggest the iCE40 line from LatticeSemi: http://www.latticesemi.com/en/Products/FPGAandCPLD/iCE40 They aren't huge as far as FPGAs go but do have up to 7680 logic cells. The main benefit is that they are one of the few FPGAs with a full...
- Wed Jan 08, 2020 2:44 pm
- Forum: Dev: Hardware
- Topic: DEAD DESIGN rusEfi own wide band controller board add-on using CJ125
- Replies: 364
- Views: 343002
Re: rusEfi own wide band controller board add-on using CJ125
Might also want to switch out the VNS14NV04 power driver for a non-obsolete part as well.JRD McLAREN wrote: ↑Wed Jan 08, 2020 7:53 amI have no problem with this...
..
but ,, in my opinion...
board need to be redesigned...
..
heater led..
bigger pads for sensor wires
2 layer board
.......
- Mon Dec 30, 2019 5:27 am
- Forum: Dev: Hardware
- Topic: EFI for small engines
- Replies: 118
- Views: 109010
- Mon Dec 30, 2019 4:09 am
- Forum: Dev: Hardware
- Topic: EFI for small engines
- Replies: 118
- Views: 109010
Re: EFI for small engines
Yes you can pay for many things. Most people look to design for low cost china MFG and assembly. Those will generally be lower temperature PCB's. dirtypcbs, pcbcart, and seeedstudio will all do small batch Al boards at a reasonable price and I've seen a few chinese pcb shops with high temp fr4 for ...
- Sun Dec 29, 2019 5:28 pm
- Forum: Dev: Hardware
- Topic: DEAD DESIGN rusEfi own wide band controller board add-on using CJ125
- Replies: 364
- Views: 343002
Re: rusEfi own wide band controller board add-on using CJ125
Thank you!russian wrote: ↑Fri Dec 27, 2019 10:40 pmhttps://github.com/rusefi/rusefi/tree/master/firmware/hw_layer/sensorsinfinityedge wrote: ↑Fri Dec 27, 2019 5:08 pmWhere is the firmware code for the wideband control stashed?
- Sun Dec 29, 2019 5:26 pm
- Forum: Dev: Hardware
- Topic: EFI for small engines
- Replies: 118
- Views: 109010
Re: EFI for small engines
They have higher temp rated fr4, or you can go crazy and do a single sided, all-SMD design on aluminum backing.
- Fri Dec 27, 2019 5:08 pm
- Forum: Dev: Hardware
- Topic: DEAD DESIGN rusEfi own wide band controller board add-on using CJ125
- Replies: 364
- Views: 343002
Re: rusEfi own wide band controller board add-on using CJ125
Where is the firmware code for the wideband control stashed?russian wrote: ↑Sun Jul 03, 2016 1:43 pmOur little board for Bosch CJ125
https://github.com/rusefi/rusefi/tree/master/hardware/CJ125_board
ibom available at https://rusefi.com/docs/ibom/
- Fri Dec 27, 2019 5:07 pm
- Forum: Dev: Hardware
- Topic: Ion Sense
- Replies: 194
- Views: 209796
Re: Ion Sense
You can pick up these ion sense coils from Harley for about $40 or OEM for about $65 Mine is marked Delphi 28058097 with a serial number of aE141028 48 http://www.ebay.com/itm/Harley-Davidson-Ignition-Coil-28058097-/351540572325?hash=item51d97370a5:g:~PgAAOSwuWVWEt1f&vxp=mtr I toasted mine in p...
- Fri Dec 27, 2019 4:50 pm
- Forum: Dev: Hardware
- Topic: EFI for small engines
- Replies: 118
- Views: 109010
Re: EFI for small engines
One cylinder system chip tle8080 https://www.infineon.com/cms/en/product/automotive-system-ic/engine-management-ic/tle8080-3em/ Also see https://www.infineon.com/cms/en/applications/automotive/powertrain/small-engine-starter-kit/ I have no idea how to make a PCB survive vibration, I am a software d...