Search found 139 matches
- Mon Mar 20, 2017 6:20 pm
- Forum: Dev: Software
- Topic: Firmware developent status
- Replies: 498
- Views: 681293
Re: Firmware developent status
https://github.com/rusefi/rusefi/blob/master/firmware/Makefile#L62 You're using softfp in the Makefile, so it's not fully used. It has to copy register data from regular to FP registers everytime you need FP. see http://www.gurucoding.com/en/rpi_cross_compiler/diff_hardfp_softfp.php https://wiki.deb...
- Mon Mar 20, 2017 9:45 am
- Forum: Dev: Software
- Topic: Firmware developent status
- Replies: 498
- Views: 681293
Re: Firmware developent status
Maybe it's time to use LTO and switch to -Os instead of -O2
I also see that you don't use the FPU, is there a good reason?
I also see that you don't use the FPU, is there a good reason?
- Mon Mar 13, 2017 6:39 pm
- Forum: Dev: Hardware
- Topic: let's choose an enclosure
- Replies: 121
- Views: 113012
Re: let's choose an enclosure
That's how AEM does it. Except they use headers. http://www.civic-eg.com/causeforalarm/aem_twin_fire/aem_30-1000_pcb.jpg http://www.jefftsai.com/Pictures/Cars/Forums/ClubLexus/2008_02Feb/ems_2.jpg As for finished solution you have this: http://www.cinch.com/products/modular-integrated-connector-encl...
- Fri Feb 24, 2017 12:43 pm
- Forum: Dev: Hardware
- Topic: A little ECU interconnect schematic/drawing I made
- Replies: 19
- Views: 15975
Re: A little ECU interconnect schematic/drawing I made
If your goal is 0.2 degree crank angle accuracy. Is that +/- 0.1 or is that +/-0.2? If you use +/- 0.1, during your tuning you will likely push until you get an issue, then you'll back off by at least 0.2 to guarantee you are safe, then you might decrease by another 0.2 just to give you some safety...
- Fri Feb 24, 2017 11:02 am
- Forum: Dev: Hardware
- Topic: A little ECU interconnect schematic/drawing I made
- Replies: 19
- Views: 15975
Re: A little ECU interconnect schematic/drawing I made
2007 CBR600RR. I run a 2014 HRC (basically Moto2) ECU for now, it's a lot better than stock but it's still years behind the current production (like 2015 R1) stuff. There's only fuel/ignition/staging offset tables, engine braking and couple things like pit limiter. The idea behind this design is to ...
- Wed Feb 22, 2017 1:48 pm
- Forum: Dev: Hardware
- Topic: Power supply - kb1gtt
- Replies: 212
- Views: 169477
Re: Power supply - kb1gtt
LM2931. The polyfuse is only rated to 24V, the TVS is rated to 15V continuous. I actually expect the TVS to switch before it gets too high, or the transient to be short enough. Which original ECU are you talking about? This is not an ECU in my case. The OEM one is potted so... (it's a motorcycle) T...
- Wed Feb 22, 2017 10:53 am
- Forum: Dev: Software
- Topic: Revision control systems
- Replies: 39
- Views: 29699
Re: Revision control systems
Well if you're the only contributor there's no point indeed. At least for now.
- Tue Feb 21, 2017 7:52 pm
- Forum: Dev: Hardware
- Topic: Power supply - kb1gtt
- Replies: 212
- Views: 169477
Re: Power supply - kb1gtt
Here's my power supply: Basically I use an input diode, a resettable fuse, a TVS diode and a pretty tough automotive LDO. In theory you only need the LDO since it's got protections everywhere. As long as your input cap is rated 60V+ and has no polarity (unlike mine). It worked perfectly for me so f...
- Tue Feb 21, 2017 7:44 pm
- Forum: Dev: Software
- Topic: Revision control systems
- Replies: 39
- Views: 29699
Re: Revision control systems
You can manage groups of users and give those groups roles with different access rights.
ie: for pull requests you can specify who is allowed to merge.
Right now you have to specify rights for each collaborator, for each repo.
ie: for pull requests you can specify who is allowed to merge.
Right now you have to specify rights for each collaborator, for each repo.
- Tue Feb 21, 2017 7:25 pm
- Forum: Dev: Software
- Topic: Revision control systems
- Replies: 39
- Views: 29699
Re: Revision control systems
I sense sarcasm
Maybe you should turn your username (rusefi) into an organisation and create another user (russian) that's member of it.
It makes more sense and would be easier to manage code maintainers/contributors.
Maybe you should turn your username (rusefi) into an organisation and create another user (russian) that's member of it.
It makes more sense and would be easier to manage code maintainers/contributors.
- Tue Feb 21, 2017 1:06 am
- Forum: Dev: Hardware
- Topic: Power supply - kb1gtt
- Replies: 212
- Views: 169477
- Tue Feb 21, 2017 12:50 am
- Forum: Dev: Software
- Topic: Revision control systems
- Replies: 39
- Views: 29699
Re: Revision control systems
This might help: https://github.com/cmungall/gosf2github
- Mon Feb 20, 2017 3:55 pm
- Forum: Dev: Software
- Topic: Revision control systems
- Replies: 39
- Views: 29699
Re: Revision control systems
Yes but it's a mirror, there's no way to merge pull requests and the commit history is simply broken.
Basically it's almost useless in the current state.
Basically it's almost useless in the current state.
- Mon Feb 20, 2017 3:35 pm
- Forum: Dev: Software
- Topic: Revision control systems
- Replies: 39
- Views: 29699
Re: Revision control systems
Maybe it's time to finally move to github and get 10x contributions and visibility
spags is 100% correct.
I would like to have a look at the code but SVN is just a big NOPE for me. I'm probably not the only one.
spags is 100% correct.
I would like to have a look at the code but SVN is just a big NOPE for me. I'm probably not the only one.
- Mon Feb 20, 2017 3:16 pm
- Forum: Dev: Hardware
- Topic: stm32f4 MPU module LQFP 208
- Replies: 23
- Views: 19980
Re: stm32f4 MPU module LQFP 208
Indeed that was incorrect... I remember seeing this somewhere on an STM32 datasheet.
There are actually 2 versions, 0.4 and 0.5, in this case ST uses 0.5mm.
My bad
Anything below 0.8mm pitch starts to be annoying.
There are actually 2 versions, 0.4 and 0.5, in this case ST uses 0.5mm.
My bad
Anything below 0.8mm pitch starts to be annoying.
- Mon Feb 20, 2017 3:05 pm
- Forum: Dev: Hardware
- Topic: Power supply - kb1gtt
- Replies: 212
- Views: 169477
Re: Power supply - kb1gtt
In fact I expect the switch to generate more ripple on SMPSes than LDOs.
On bikes most of these wires are around 24AWG. (they are much shorter than in cars)
Do you have a link or information to calculate the required RF choke?
Thanks
On bikes most of these wires are around 24AWG. (they are much shorter than in cars)
Do you have a link or information to calculate the required RF choke?
Thanks
- Mon Feb 20, 2017 2:28 pm
- Forum: Dev: Hardware
- Topic: stm32f4 MPU module LQFP 208
- Replies: 23
- Views: 19980
Re: stm32f4 MPU module LQFP 208
Keep in mind that anything larger than LQFP144 has a 0.4mm pitch.
Most SDRAM/Flash are very fine pitch or BGA as well.
An SD card would be sufficient for your use if you don't need blazing speeds.
You could even use it for firmware upgrades.
Most SDRAM/Flash are very fine pitch or BGA as well.
An SD card would be sufficient for your use if you don't need blazing speeds.
You could even use it for firmware upgrades.
- Mon Feb 20, 2017 10:43 am
- Forum: Dev: Hardware
- Topic: Power supply - kb1gtt
- Replies: 212
- Views: 169477
Re: Power supply - kb1gtt
There's no RF choke, I might add one later on. I'm not using an SMPS so I don't expect a lot of current ripple. Especially that I have a big output cap that smooths things out. I had a look with a scope and voltage ripple is around a couple mV on a lab PSU IIRC. I assume the long wires and battery o...
- Mon Feb 20, 2017 12:26 am
- Forum: Dev: Hardware
- Topic: Power supply - kb1gtt
- Replies: 212
- Views: 169477
Re: Power supply - kb1gtt
Here's my power supply: https://s12.postimg.org/5xre8z6d5/2017_02_20_01_08_07_1_Schematic_D_src_STM32_M.png https://s3.postimg.org/5qbqge9zj/psu.jpg Basically I use an input diode, a resettable fuse, a TVS diode and a pretty tough automotive LDO. In theory you only need the LDO since it's got protec...
- Sun Feb 19, 2017 8:22 pm
- Forum: Dev: Hardware
- Topic: Power supply - kb1gtt
- Replies: 212
- Views: 169477
Re: Power supply - kb1gtt
Seems like those are not depletion mosfets.
If you want to go cheap, go LDO. It's not like it's using a lot of power anyway right?
If you want to go cheap, go LDO. It's not like it's using a lot of power anyway right?
- Wed Feb 15, 2017 10:49 am
- Forum: Dev: Software
- Topic: Reliability testing
- Replies: 26
- Views: 17423
Re: Reliability testing
I'm actually surprised you guys didn't take this into account from the beginning, it was bound to happen. (no offense) Any other scenarios we might have fixed? As for internal/external flash that's technically a different subject altogether, for now our workaround is to only write flash while engin...
- Tue Feb 14, 2017 6:53 pm
- Forum: Dev: Software
- Topic: Reliability testing
- Replies: 26
- Views: 17423
Re: Reliability testing
I'm actually surprised you guys didn't take this into account from the beginning, it was bound to happen. (no offense) I use an spi eeprom with crc and wear leveling: https://github.com/fpoussin/MotoLink/blob/master/code/app/storage.c#L271 Feel free to copy/try it. Everytime you write to the flash, ...
- Sun Feb 12, 2017 4:25 pm
- Forum: Dev: Software
- Topic: Firmware developent status
- Replies: 498
- Views: 681293
Re: Firmware developent status
I'm afraid sorussian wrote:Wrong continent, I am afraid to think about shippingmobyfab wrote:If you need hardware, I have an old server tower i'm not using, 2x Xeon L5420, 8Gb of ram, but it's very heavy and noisy...
There's also this one: https://semaphoreci.com
- Fri Feb 10, 2017 4:12 pm
- Forum: Dev: Software
- Topic: Firmware developent status
- Replies: 498
- Views: 681293
Re: Firmware developent status
If you need hardware, I have an old server tower i'm not using, 2x Xeon L5420, 8Gb of ram, but it's very heavy and noisy...
Maybe you can do the CI on travis, and still have the other tests on your server.
Maybe you can do the CI on travis, and still have the other tests on your server.
- Fri Feb 10, 2017 3:39 pm
- Forum: Dev: Software
- Topic: Firmware developent status
- Replies: 498
- Views: 681293
Re: Firmware developent status
I can give you access to my jenkins+docker instance once I'm done migrating it.
Now again, if you were using github... https://docs.travis-ci.com (free)
Now again, if you were using github... https://docs.travis-ci.com (free)
- Fri May 23, 2014 1:18 pm
- Forum: Dev: Software
- Topic: output scheduling resolution
- Replies: 20
- Views: 37164
Re: output scheduling resolution
RPM vs tick rate, giving the precision:
https://jsfiddle.net/X64Rb/8
It's in JS so feel free to modify calculations or add more values.
You can also export to images.
https://jsfiddle.net/X64Rb/8
It's in JS so feel free to modify calculations or add more values.
You can also export to images.
- Fri May 23, 2014 10:07 am
- Forum: Dev: Hardware
- Topic: A little ECU interconnect schematic/drawing I made
- Replies: 19
- Views: 15975
Re: A little ECU interconnect schematic/drawing I made
This is not the only open source ECU project. This isn't a contest ... We win Right... Contradictions? Just as a reminder, since some people seem to forget: I made a schematic for an ECU a while ago, I'm posting it here in case this helps you with hardware design kb1gtt, you get the point ;) It's al...
- Thu May 22, 2014 9:23 am
- Forum: Dev: Hardware
- Topic: A little ECU interconnect schematic/drawing I made
- Replies: 19
- Views: 15975
Re: A little ECU interconnect schematic/drawing I made
kb1gtt, you did a really nice explanation of the pros/cons. For the sync, you can use mutexes and sync signals to the host to work around that problem. The uart uses DMA so you can write to it while the MCU is busy and not lose any data. Russian, 0.2 because it's the same value as some commercial EC...
- Wed May 21, 2014 4:21 pm
- Forum: Dev: Hardware
- Topic: A little ECU interconnect schematic/drawing I made
- Replies: 19
- Views: 15975
Re: A little ECU interconnect schematic/drawing I made
I never said you were an a-hole, or that you have to do as I say :| 0.2 is easily achievable with 32b timers. We have those so why not use them? IMO ignition timing should always be predictable (at least withing a hard range). So 99.9% accuracy from the software point of view. Not a problem with har...
- Wed May 21, 2014 2:36 pm
- Forum: Dev: Hardware
- Topic: A little ECU interconnect schematic/drawing I made
- Replies: 19
- Views: 15975
Re: A little ECU interconnect schematic/drawing I made
You're right, it's not something needed in all design cases. It's just the solution I like most. If I was to design an ECU I would not allow an accuracy below 0.2 degrees at 20K rpm so it would be manadtory to use hardware timers. Since there are a limited numbers of these, especially 32b ones, usin...