Search found 231 matches

by tomiata
Fri Feb 03, 2017 4:18 am
Forum: Your car & your engine
Topic: Miata NA 1990, 1.6L stock #21
Replies: 378
Views: 40476

Re: Miata NA 1990, 1.6L stock #21

Could you please post your latest working tune? I need to copy parts of it. Thanks! Sorry for the slow response, been busy with life etc. I just got the car going again after the out-of-car-body experience with reliability testing. Attached is current tune, and I have a few problems to ask about. 1...
by tomiata
Thu Jan 26, 2017 1:49 am
Forum: Your car & your engine
Topic: Miata NA 1990, 1.6L stock #21
Replies: 378
Views: 40476

Re: Miata NA 1990, 1.6L stock #21

tomiata wrote:I documented most of what I did on this page:
http://rusefi.com/wiki/index.php?title= ... Miata_1990
The writing setup I used is up to date on the wiki now, sorry I forgot to mentioned that before.
by tomiata
Sat Jan 21, 2017 9:49 pm
Forum: Hardware
Topic: stm32f4 MPU module LQFP 100
Replies: 123
Views: 34038

Re: stm32f4 MPU module LQFP 100

russian wrote:Getting closer to reality! With the SD grand-daughter board we will have logs and tuning access via the top plastic cover.
Where can I get one those SD card thingies, and how does it connect to the board?
by tomiata
Fri Jan 13, 2017 6:46 pm
Forum: Hardware
Topic: Frankenso - ECU shield compatible with OEM case / official
Replies: 537
Views: 121935

Re: Frankenso - ECU shield compatible with OEM case

Tell me when to grab that new .pdf For a bare bones Miata ECU we do not need MAX9926 do not need TPIC8101 do not need FT232 - which leaves injector transistors as the most expensive part on the board which makes me wonder how to make it cheaper. Maybe use cheaper transistors at least for fuel pump ...
by tomiata
Thu Jan 12, 2017 3:20 am
Forum: Your car & your engine
Topic: 1993 Miata 1.6l (stock so far)
Replies: 11
Views: 1469

Re: 1993 Miata 1.6l (stock so far)

Were you able to see any signs of life from the discovery board? I checked my new rev D board with Windows to check driver revisions. discovery-revD.jpg My windows STM USB driver version I have looks like: st-link-debug-driver.jpg And my STM debug embedded firmware version is: st-link-upgrade.jpg To...
by tomiata
Wed Jan 11, 2017 3:41 am
Forum: Your car & your engine
Topic: Hunchback 1991 Miata NA/NB2 rusEfi official racecar #20
Replies: 213
Views: 41755

Re: 1991 Miata #20 Hunchback

There's several reasons why your timing may be (or seem) off. 1) The Trigger Angle Offset was wrong. If so, fix it and move on with live 2) There's something mechanical going on with your engine .... Also: please post your timing table! Thanks for the help. I've been busy with reliability testing a...
by tomiata
Wed Jan 11, 2017 3:09 am
Forum: Your car & your engine
Topic: Miata NA 1990, 1.6L stock #21
Replies: 378
Views: 40476

Re: Miata NA 1990, 1.6L stock #21

I documented most of what I did on this page:
http://rusefi.com/wiki/index.php?title= ... Miata_1990

Sorry, it's not up-to-date, and I didn't wire it very cleanly doing a little at a time. I'll try to update it to what I have.

My MAP is W46 Inp10 PA6.
by tomiata
Mon Jan 09, 2017 4:58 am
Forum: Software
Topic: Reliability testing
Replies: 26
Views: 3007

Re: Reliability testing

russian wrote: ..version number in each image so that I will overwrite the older and always have two copies - current and previous.
Yes, sounds good.
by tomiata
Mon Jan 09, 2017 4:23 am
Forum: Software
Topic: Reliability testing
Replies: 26
Views: 3007

Re: Reliability testing

This issue should be easy to address - we will write two copies each time we burn, we would need at least one on read. Hopefully power loss would only damage one copy of the configuration. How about keep an online copy and an offline copy, only update the offline copy, then swap pointers to make of...
by tomiata
Mon Jan 09, 2017 3:15 am
Forum: Software
Topic: Reliability testing
Replies: 26
Views: 3007

Re: Reliability testing

I've been playing with the test script to drive the power cycle testing. The raspberry pi I'm using is not very fast and my python is not very efficient, sometimes loses some of the console output. I'll try a faster pi to see if it works better. The test sequence goes like this: 1. Start with ON-tim...
by tomiata
Sun Jan 08, 2017 5:34 am
Forum: Software
Topic: Reliability testing
Replies: 26
Views: 3007

Re: Reliability testing

What about flash write cycles on the internal STM32 internal flash? It looks like these are only good for about 10,000 writes. Is there any wear leveling implemented for the space for writeconfig? See the app note: http://www.st.com/content/ccc/resource/technical/document/application_note/ec/dd/8e/a...
by tomiata
Sat Jan 07, 2017 10:23 pm
Forum: Software
Topic: Reliability testing
Replies: 26
Views: 3007

Re: Reliability testing

but what will you get from it? even if you manage to detect a fault, you won't be able to reproduce it and track it back, will you? what's the current assumption? you get it destroyed when writing down config? We can try different write operations and vary the timing of power off to see what causes...
by tomiata
Sat Jan 07, 2017 6:34 pm
Forum: Software
Topic: Reliability testing
Replies: 26
Views: 3007

Reliability testing

Here is the setup I made to try to reproduce a config corruption problem. See http://rusefi.com/forum/viewtopic.php?f=3&t=660&start=270#p21437 power-cycle-testing.jpg I've done 7000+ power cycles with no problems on just a Discovery running board with a similar setup. And I'm working on this sequenc...
by tomiata
Sat Jan 07, 2017 6:22 pm
Forum: Your car & your engine
Topic: Miata NA 1990, 1.6L stock #21
Replies: 378
Views: 40476

Re: Miata NA 1990, 1.6L stock #21

I agree that native USB with it's drivers complexity is not the bext option for the test planned, do you have any luck with text protocol over TTL poer at in http://rusefi.com/forum/viewtopic.php?f=3&t=660&start=300#p21998 ? Sorry missed your earlier question. After updating to current firmware, wi...
by tomiata
Fri Jan 06, 2017 5:24 am
Forum: Your car & your engine
Topic: Miata NA 1990, 1.6L stock #21
Replies: 378
Views: 40476

Re: Miata NA 1990, 1.6L stock #21

It might work to close the serial connection to avoid the linux device driver weirdness, but it needs to be 100% reliable for this test. And I'm guessing that the problem is because of the port being open when the USB device resets. I suspect there are other problems. I always restart the java dev c...
by tomiata
Thu Jan 05, 2017 2:59 am
Forum: Your car & your engine
Topic: Miata NA 1990, 1.6L stock #21
Replies: 378
Views: 40476

Re: Miata NA 1990, 1.6L stock #21

The micro usb is a pain to use with linux. If the device is open, on reset the device name changes from /dev/ttyACM0 to /dev/ttyACM1, and changes back if you reset again. The test script could work with that but would be messy. How hard is it to change to support text console on the mini usb port?
by tomiata
Wed Jan 04, 2017 6:46 pm
Forum: Your car & your engine
Topic: Miata NA 1990, 1.6L stock #21
Replies: 378
Views: 40476

Re: Miata NA 1990, 1.6L stock #21

russian wrote:Yep, you should be able to type commands right into this terminal connection.
Hmmm, I tried a few commands like sdinfo, writeconfig, fl 0, fl 1, but didn't see any output. I'll try again tonight.
by tomiata
Wed Jan 04, 2017 4:53 am
Forum: Your car & your engine
Topic: Miata NA 1990, 1.6L stock #21
Replies: 378
Views: 40476

Re: Miata NA 1990, 1.6L stock #21

I used dev console to disable binary_mode_console. And I'm using linux and python to drive the test. And to test out the setup I power up the board with PB1 pin grounded and connect the FTDI USB port to a dumb terminal program and see output like this: Idle Valve on PB:9 line:22:msg,Idle Valve on PB...
by tomiata
Tue Jan 03, 2017 4:24 pm
Forum: Hardware
Topic: Frankenso injector drivers
Replies: 45
Views: 4675

Re: Frankenso injector drivers

I will hold off on gluing anything down. I think I can attach a metal tab to the side of the case easy enough to get the effect that kb1gtt described. I have some adhesive thermal pads I could try also to get the tab to contact the package without being permanent. I'll try this later on. Right now I...
by tomiata
Tue Jan 03, 2017 2:17 pm
Forum: Your car & your engine
Topic: Miata NA 1990, 1.6L stock #21
Replies: 378
Views: 40476

Re: Miata NA 1990, 1.6L stock #21

As next step of endurance testing can we try adding set_int 2472 100 writeconfig set_int 2472 101 writeconfig set_int 2472 102 writeconfig And adding power off with a random delay after writeconfig? My set up can now turn on the board for a specific length of time in milliseconds via serial connect...
by tomiata
Mon Jan 02, 2017 6:28 am
Forum: Your car & your engine
Topic: Miata NA 1990, 1.6L stock #21
Replies: 378
Views: 40476

Re: Miata NA 1990, 1.6L stock #21

As next step of endurance testing can we try adding set_int 2472 100 writeconfig set_int 2472 101 writeconfig set_int 2472 102 writeconfig I'll try to get it going. And I agree with @kb1gtt that doing incremental sweep would better than random timing. Right now the power on/off setup is very dumb. ...
by tomiata
Sun Jan 01, 2017 10:21 pm
Forum: Hardware
Topic: Frankenso injector drivers
Replies: 45
Views: 4675

Re: Frankenso injector drivers

The starting conditions for the temperature measurments were from McKinney, Texas around 3pm Dec. 31, 2016 2:53 PM 66.9 °F 44.1 °F 44% 29.77 in 10.0 mi WSW 6.9 mph - N/A Clear ambient in the car was 22 to 25C 2nd file starts at about 4:30pm, but there is not another weather station along the route, ...
by tomiata
Sun Jan 01, 2017 7:20 am
Forum: Hardware
Topic: Frankenso injector drivers
Replies: 45
Views: 4675

Re: Frankenso injector drivers

Here is more temperature data after doing a 300 mile drive with the thermocouple in the same place. Ambient temp was 22 to 28C for the first two files, and cooler on the 3rd file, temp dropped to about 16C. I didn't look at the data, but watching the meter occasionally, the highest I saw was about 6...
by tomiata
Sat Dec 31, 2016 4:49 pm
Forum: Your car & your engine
Topic: Hunchback 1991 Miata NA/NB2 rusEfi official racecar #20
Replies: 213
Views: 41755

Re: 1991 Miata #20 Hunchback

Do you still have a 1.6L engine in this car? What do you have set for TS Trigger Angle Offset? Is that the same setting as set_global_trigger_offset_angle? I discovered my timing was way off on my '90 Miata. I checked with the timing light and it looks like 10 or 12 degrees off. 10 degrees on the ig...
by tomiata
Fri Dec 30, 2016 6:31 pm
Forum: Your car & your engine
Topic: Miata NA 1990, 1.6L stock #21
Replies: 378
Views: 40476

Re: Miata NA 1990, 1.6L stock #21

This looks to be http://rusefi.com/forum/viewtopic.php?f=4&t=1027 Long story short - you need to update st-link firmware (ST-Link Utility->Update firmware), and that seem to fix the issue I got it working and ran it through 7600 power cycles will no problems. This was using an arduino to control a ...
by tomiata
Wed Dec 28, 2016 12:28 am
Forum: Your car & your engine
Topic: Miata NA 1990, 1.6L stock #21
Replies: 378
Views: 40476

Re: Miata NA 1990, 1.6L stock #21

How about a test rig set up with discovery that turns on power and watches for serial data to confirm config is sane? It could run a few seconds then repeat and stop if the config changed. I could probably get my son set that up since he is off school for Christmas. Worth a try! As is firmware uses...
by tomiata
Mon Dec 19, 2016 3:33 pm
Forum: Hardware
Topic: Frankenso injector drivers
Replies: 45
Views: 4675

Re: Frankenso injector drivers

10С ambient - you mean literarily on the floor, inside the car? could you please remind, where exactly in car you installed your ecu? ... The 90 Miata ecu mounts to the fire wall at the passenger's feet. I have the frankenso on the floor not bolted in yet. Case was open for this test. Cabin temp at...
by tomiata
Mon Dec 19, 2016 4:03 am
Forum: Hardware
Topic: Frankenso injector drivers
Replies: 45
Views: 4675

Re: Frankenso injector drivers

Testing while driving did not go very well. After a short time the thermocouple lost contact with driver package, from vibration I guess, and I did not get good readings. But before that I saw temperatures get up to about 53C cruising at 4000 rpm with ambient temp at 10C on the floor of the car. (It...
by tomiata
Sat Dec 17, 2016 11:43 pm
Forum: Hardware
Topic: Frankenso injector drivers
Replies: 45
Views: 4675

Re: Frankenso injector drivers

Check out this this setup before I do too much. I have injector 1 on PD3 to Q407. I tried to apply small blob of thermal grease on the thermocouple to contact the package. (It turned out be too much and made a mess :( ) IMG_20161217_171923~2.jpg I did not set up the old laptop to do logging yet, but...
by tomiata
Sat Dec 17, 2016 10:21 pm
Forum: Hardware
Topic: Frankenso injector drivers
Replies: 45
Views: 4675

Re: Frankenso injector drivers

Oh, cool. What is the make and model of the DMM. Do you have software for it that you can use to capture the data on the PC? Tekpower TP4000ZC I got it a few years ago on amazon, and I see it's still there for $36 https://www.amazon.com/Tekpower-TP4000ZC-Interfaced-Multimeter-Computer/dp/B000OPDFLM...