Search found 46 matches
- Mon Jul 14, 2014 11:57 pm
- Forum: Dev: Software
- Topic: MAP but not SD as intermediate solution?
- Replies: 69
- Views: 67584
Re: MAP but not SD as intermediate solution?
WooHoo! I should conjur up something to wire my board to the engine in my PT Cruiser (Neon style trigger wheel on that motor).
- Thu Jul 10, 2014 9:30 pm
- Forum: Dev: Hardware
- Topic: Summer Sales
- Replies: 0
- Views: 6280
Summer Sales
Saw a couple relevant deals on my twitter feed: http://upverter.com/static/designmyhardware/ If we want to have something designed/redesigned, and it's cool enough, submit it, it'd be great advertising (for us) as well as a free design. And OSHStencils is having a sale on solder stencils: https://tw...
- Thu Jul 10, 2014 1:21 am
- Forum: Dev: Software
- Topic: FSIO: GPIO implementation
- Replies: 37
- Views: 31170
Re: GPIO implementation
Don't forget to include a hysteresis in the settings, otherwise things like toggling between 119.9 and 120.0 will turn the radiator fan on and off rapidly. Bad for the relays, and kind of annoying. Just about any output needs a hysteresis.
- Fri Jun 27, 2014 2:32 am
- Forum: Dev: Software
- Topic: MAP but not SD as intermediate solution?
- Replies: 69
- Views: 67584
Re: MAP but not SD as intermediate solution?
8x8 is "enough". Do 16x16.
- Sun Jun 22, 2014 10:31 pm
- Forum: Dev: Software
- Topic: electronic throttle body control ETB
- Replies: 290
- Views: 443346
Re: electronic throttle body control
Good way to kill a lot of people. You can always install a normal throttle body on any engine. This should be the very last thing implemented, after the code is very mature, stable, and proven.
- Sun Jun 22, 2014 10:30 pm
- Forum: Dev: Software
- Topic: STM32F4xx Seminar
- Replies: 1
- Views: 3503
Re: STM32F4xx Seminar
Yeah, I've been to the last 3 seminars. I get the invite emailed to me each year. Sadly, this year they seem to have left Seattle off the list of cities.
- Sun Jun 08, 2014 3:17 pm
- Forum: Dev: Software
- Topic: Battery backed ram and other wish list ideas
- Replies: 14
- Views: 13333
Re: Battery backed ram and other wish list ideas
Yeah, rather than beat around the bush with excuses to not do it, let's just do it. We're still in early days of the project, now is the time to put in fundamental features like this.
- Tue Jun 03, 2014 2:52 am
- Forum: Dev: Software
- Topic: Battery backed ram and other wish list ideas
- Replies: 14
- Views: 13333
Re: Battery backed ram and other wish list ideas
Another thing having the processor simply "sleeping" would be good for is being able to determine when the last start was. One thing that always drove me insane with the MegaSquirt was trying to get the first start of the day rich enough. Doesn't matter that the engine is the same temp it ...
- Sat May 31, 2014 5:29 am
- Forum: Dev: Software
- Topic: MAP but not SD as intermediate solution?
- Replies: 69
- Views: 67584
Re: MAP but not SD as intermediate solution?
It's very common that the fuel regulator is connected to the manifold pressure, such that the regulator tracks the manifold pressure. If you are at 5psia, your fuel pressure would be something like 50psia a difference of 45psi. Then if your manifold pressure is at 10psia, the regulator is supposed ...
- Thu May 29, 2014 2:40 am
- Forum: Dev: Software
- Topic: MAP but not SD as intermediate solution?
- Replies: 69
- Views: 67584
Re: MAP but not SD as intermediate solution?
What the heck.. Yes, if you're going to add map support, don't waste a ton of time doing it wrong. Let someone help put the equation in the code for you. As for a base VE table, set them all to 75%, let the first person to get a running engine tune it, and use their's as the baseline till something ...
- Thu May 29, 2014 2:30 am
- Forum: Dev: Hardware
- Topic: Manufacturing options
- Replies: 27
- Views: 74841
Re: Manufacturing options
http://www.smallbatchassembly.com/ This place is hobbiest friendly, much like OSHPark and OSHStencils, if you need to have a batch of boards with tiny SMD stuff assembled, it might be a viable option.
- Mon May 26, 2014 10:55 pm
- Forum: Dev: Hardware
- Topic: How noisy is the electrical system?
- Replies: 1
- Views: 3383
How noisy is the electrical system?
[video]http://youtu.be/t0ToYhjYV9I[/video] This slightly over the top video does a great job of showing just what kind of noise exists in a car's electrical system. 1v spikes, just from the coils discharging, and that's at the cig lighter, well removed from the rest of the system. Pretty wild. Thoug...
- Mon May 26, 2014 10:52 pm
- Forum: Dev: Hardware
- Topic: stm32f4 MPU module LQFP 100
- Replies: 123
- Views: 137438
Re: stm32f4 main chip module
haha! Awesome! Glad to see it living! Motivates me to put some more work into the other two.
- Fri May 23, 2014 3:32 pm
- Forum: Dev: Hardware
- Topic: A little ECU interconnect schematic/drawing I made
- Replies: 19
- Views: 16398
Re: A little ECU interconnect schematic/drawing I made
Ahh, you're just a troll. I'm done feeding the troll.mobyfab wrote: Right... Contradictions?
- Fri May 23, 2014 1:23 am
- Forum: Dev: Hardware
- Topic: A little ECU interconnect schematic/drawing I made
- Replies: 19
- Views: 16398
Re: A little ECU interconnect schematic/drawing I made
This isn't a contest of who has the best stats. We win by default simply for being a fully open source project. Nobody else has that. .2 degrees at ANY RPM is beyond pointless, besides the already stated point that the trigger wheels don't have that kind of resolution, there's a 3-4 degree window ev...
- Tue May 20, 2014 5:48 pm
- Forum: Dev: Hardware
- Topic: Power supply - rus084
- Replies: 6
- Views: 6672
Re: Power supply - rus084
This is why I've been saying to provide the ECU with constant power, provide it with a way of detecting ignition power being on, and use the uC's native ability to sleep. The micro amps it draws in sleep is WAY below the 30ma draw that lead acid batteries will tolerate.
- Tue May 20, 2014 3:15 am
- Forum: User Support
- Topic: Setting up the board with pre-compiled binaries
- Replies: 58
- Views: 191486
Re: Setting up the board with pre-compiled binaries
Yeah, that's cool, I understand. Another one of those things for the to-do list I mentioned in another thread. We'll get more contributors eventually. People who can both code microcontrollers, and understand the intricacies of the internal combustion engine and it's processes are pretty rare.
- Tue May 20, 2014 3:12 am
- Forum: Dev: Hardware
- Topic: stm32f4 MPU module LQFP 100
- Replies: 123
- Views: 137438
Re: stm32f4 main chip module
Lots of flux, high quality iron with a fine wedge tip, LOTS of light, patience, good eyes, steady hands, fair amount of practice (replacing a blown chip on a plasma TV). :) I'd shoot video but my camera just isn't up to the task. There's a guy on YouTube, EEVBlog, I learned everything from his video...
- Tue May 20, 2014 2:38 am
- Forum: User Support
- Topic: Setting up the board with pre-compiled binaries
- Replies: 58
- Views: 191486
Re: Setting up the board with pre-compiled binaries
Really shouldn't be releasing compiled versions more than once a day. We should have known good stable builds, not the bleeding edge "Oh, I tried this new trick and it didn't work out, sorry about your pistons" versions - obviously there's a time and a place for alpha alpha test versions, ...
- Tue May 20, 2014 2:13 am
- Forum: Dev: Hardware
- Topic: stm32f4 MPU module LQFP 100
- Replies: 123
- Views: 137438
Re: stm32f4 main chip module
Got the boards today. The virgin one went well, I'll get to the other two another night. But for now I'll get this completed one back in the mail back to you so you can put the rest of the components on it and resume testing. I snapped some pictures to show the soldering. There are a couple pins tha...
- Mon May 19, 2014 7:22 pm
- Forum: User Support
- Topic: Setting up the board with pre-compiled binaries
- Replies: 58
- Views: 191486
Re: Setting up the board with pre-compiled binaries
What's this file info thing that shows version numbers? If it were me, the hex file would simply have the date appended to it. So rather than rusefi.zip, it'd be rusefi051514.zip or similar.
- Sun May 18, 2014 3:47 am
- Forum: User Support
- Topic: Setting up the board with pre-compiled binaries
- Replies: 58
- Views: 191486
Re: Setting up the board with pre-compiled binaries
Ok, jumped PD1 to PC6 and now the green comes on solid. I should probably setup TunerStudio and make some more meaningful contact, now that this thing boots every time.
- Sun May 18, 2014 2:58 am
- Forum: User Support
- Topic: Setting up the board with pre-compiled binaries
- Replies: 58
- Views: 191486
Re: Setting up the board with pre-compiled binaries
Good news, I downloaded the 0515 version, (you really should include at least a file inside the zip with the build date as it's file name) and this one runs just fine. Flashed it onto the board, it fires up and runs every time. Yay. Interestingly, the green light flickers at the same rate as the blu...
- Sat May 17, 2014 10:11 pm
- Forum: Dev: Hardware
- Topic: Power supply - kb1gtt
- Replies: 212
- Views: 172034
Re: Power supply - kb1gtt
Warning! Tant caps have the stripe on the POSITIVE side, not the negative side! And you do have to get the polarity right on polarized caps.
- Sat May 17, 2014 3:24 am
- Forum: Dev: Hardware
- Topic: 121 pin connector 368255-2 (same as 1241434-1)
- Replies: 43
- Views: 58125
Re: 121 pin connector
Yeah, I've done that.. Did that for the ECM connector in my '85 Dodge at one point. Worked like a champ..
- Sat May 17, 2014 3:14 am
- Forum: Dev: Hardware
- Topic: stm32f4 MPU module LQFP 100
- Replies: 123
- Views: 137438
Re: stm32f4 main chip module
I'll take a whack at one of the boards. Easy peasy.
- Sat May 17, 2014 12:00 am
- Forum: Dev: Hardware
- Topic: 121 pin connector 368255-2 (same as 1241434-1)
- Replies: 43
- Views: 58125
Re: 121 pin connector
Stick with a connector that is obtainable. It's cool to desolder one for your own personal car, but if you're looking for one to standardize the board around, it should be something that can be readily bought off the shelf. It's a shame decent connectors tend to cost more than the rest of the board ...
- Thu May 15, 2014 7:12 pm
- Forum: Dev: Hardware
- Topic: stm32f4 MPU module LQFP 100
- Replies: 123
- Views: 137438
Re: stm32f4 main chip module
Yeah, in the end, plastic at that price is great for the DIYer, and WAY better than no stencil at all.
Use good paste.
Use good paste.
- Thu May 15, 2014 2:20 am
- Forum: User Support
- Topic: Setting up the board with pre-compiled binaries
- Replies: 58
- Views: 191486
Re: Setting up the board with pre-compiled binaries
hehe, I'm not much for actual programming beyond something simple like an Arduino, but I do know my way around flashing microcontrollers and electronics in general. I'm tempted to just order a new chip and replace the one on this board, but I guess I'd only be saving a couple bucks.
- Thu May 15, 2014 2:09 am
- Forum: User Support
- Topic: Setting up the board with pre-compiled binaries
- Replies: 58
- Views: 191486
Re: Setting up the board with pre-compiled binaries
Loaded the demo firmware on. Runs perfectly, reset button resets every time. Starts running correctly every time. Could still be a bad cell in the ram, the RTOS uses a lot more resources than a funny blinky program. But it does confirm I can program the board correctly.