Search found 46 matches

by UnaClocker
Mon Jul 14, 2014 11:57 pm
Forum: Software
Topic: MAP but not SD as intermediate solution?
Replies: 69
Views: 16118

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). :)
by UnaClocker
Thu Jul 10, 2014 9:30 pm
Forum: Hardware
Topic: Summer Sales
Replies: 0
Views: 991

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...
by UnaClocker
Thu Jul 10, 2014 1:21 am
Forum: Software
Topic: FSIO: GPIO implementation
Replies: 37
Views: 9593

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.
by UnaClocker
Fri Jun 27, 2014 2:32 am
Forum: Software
Topic: MAP but not SD as intermediate solution?
Replies: 69
Views: 16118

Re: MAP but not SD as intermediate solution?

8x8 is "enough". Do 16x16.
by UnaClocker
Sun Jun 22, 2014 10:31 pm
Forum: Software
Topic: electronic throttle body control ETB
Replies: 263
Views: 22626

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.
by UnaClocker
Sun Jun 22, 2014 10:30 pm
Forum: Software
Topic: STM32F4xx Seminar
Replies: 1
Views: 1131

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.
by UnaClocker
Sun Jun 08, 2014 3:17 pm
Forum: Software
Topic: Battery backed ram and other wish list ideas
Replies: 14
Views: 3673

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.
by UnaClocker
Tue Jun 03, 2014 2:52 am
Forum: Software
Topic: Battery backed ram and other wish list ideas
Replies: 14
Views: 3673

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 would be a...
by UnaClocker
Sat May 31, 2014 5:29 am
Forum: Software
Topic: MAP but not SD as intermediate solution?
Replies: 69
Views: 16118

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 ...
by UnaClocker
Thu May 29, 2014 2:40 am
Forum: Software
Topic: MAP but not SD as intermediate solution?
Replies: 69
Views: 16118

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 ...
by UnaClocker
Thu May 29, 2014 2:30 am
Forum: Hardware
Topic: Manufacturing options
Replies: 15
Views: 3829

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.
by UnaClocker
Mon May 26, 2014 10:55 pm
Forum: Hardware
Topic: How noisy is the electrical system?
Replies: 1
Views: 774

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...
by UnaClocker
Mon May 26, 2014 10:52 pm
Forum: Hardware
Topic: stm32f4 MPU module LQFP 100
Replies: 123
Views: 33336

Re: stm32f4 main chip module

haha! Awesome! Glad to see it living! Motivates me to put some more work into the other two. :)
by UnaClocker
Fri May 23, 2014 3:32 pm
Forum: Hardware
Topic: A little ECU interconnect schematic/drawing I made
Replies: 19
Views: 3523

Re: A little ECU interconnect schematic/drawing I made

mobyfab wrote: Right... Contradictions?
Ahh, you're just a troll. I'm done feeding the troll.
by UnaClocker
Fri May 23, 2014 1:23 am
Forum: Hardware
Topic: A little ECU interconnect schematic/drawing I made
Replies: 19
Views: 3523

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...
by UnaClocker
Tue May 20, 2014 5:48 pm
Forum: Hardware
Topic: Power supply - rus084
Replies: 6
Views: 1533

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.
by UnaClocker
Tue May 20, 2014 3:15 am
Forum: Software
Topic: Setting up the board with pre-compiled binaries
Replies: 58
Views: 19625

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.
by UnaClocker
Tue May 20, 2014 3:12 am
Forum: Hardware
Topic: stm32f4 MPU module LQFP 100
Replies: 123
Views: 33336

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...
by UnaClocker
Tue May 20, 2014 2:38 am
Forum: Software
Topic: Setting up the board with pre-compiled binaries
Replies: 58
Views: 19625

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, just need ...
by UnaClocker
Tue May 20, 2014 2:13 am
Forum: Hardware
Topic: stm32f4 MPU module LQFP 100
Replies: 123
Views: 33336

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...
by UnaClocker
Mon May 19, 2014 7:22 pm
Forum: Software
Topic: Setting up the board with pre-compiled binaries
Replies: 58
Views: 19625

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.
by UnaClocker
Sun May 18, 2014 3:47 am
Forum: Software
Topic: Setting up the board with pre-compiled binaries
Replies: 58
Views: 19625

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. :)
by UnaClocker
Sun May 18, 2014 2:58 am
Forum: Software
Topic: Setting up the board with pre-compiled binaries
Replies: 58
Views: 19625

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...
by UnaClocker
Sat May 17, 2014 10:11 pm
Forum: Hardware
Topic: Power supply - kb1gtt
Replies: 212
Views: 40280

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. :)
by UnaClocker
Sat May 17, 2014 3:24 am
Forum: Hardware
Topic: 121 pin connector 368255-2 (same as 1241434-1)
Replies: 40
Views: 12822

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.. :)
by UnaClocker
Sat May 17, 2014 3:14 am
Forum: Hardware
Topic: stm32f4 MPU module LQFP 100
Replies: 123
Views: 33336

Re: stm32f4 main chip module

I'll take a whack at one of the boards. Easy peasy.
by UnaClocker
Sat May 17, 2014 12:00 am
Forum: Hardware
Topic: 121 pin connector 368255-2 (same as 1241434-1)
Replies: 40
Views: 12822

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 ...
by UnaClocker
Thu May 15, 2014 7:12 pm
Forum: Hardware
Topic: stm32f4 MPU module LQFP 100
Replies: 123
Views: 33336

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.
by UnaClocker
Thu May 15, 2014 2:20 am
Forum: Software
Topic: Setting up the board with pre-compiled binaries
Replies: 58
Views: 19625

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. ;)
by UnaClocker
Thu May 15, 2014 2:09 am
Forum: Software
Topic: Setting up the board with pre-compiled binaries
Replies: 58
Views: 19625

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. :)