Search found 3697 matches

by jbelanger
Mon Sep 09, 2019 6:11 pm
Forum: I/O Extender
Topic: Ms2 extra wheel speed problems
Replies: 1
Views: 12

Re: Ms2 extra wheel speed problems

Please post your TIOx msq. You need to take into consideration the timer speed in your computation. The output is not a number of pulses per seconds but rather the interval between pulses in clock ticks. So you need to check how much time each clock tick is (from the timer clock speed) and then use ...
by jbelanger
Mon Sep 09, 2019 6:07 pm
Forum: Introduce yourself
Topic: Newbie with tinyiox and ms2extra
Replies: 2
Views: 69

Re: Newbie with tinyiox and ms2extra

Hi and welcome to the forum!

Jean
by jbelanger
Fri Aug 09, 2019 3:00 pm
Forum: New Boards
Topic: Ruggedized ECU
Replies: 66
Views: 70356

Re: Ruggedized ECU

There was only one small batch done as many of the people who said they were interested before it was produced just disappeared once it was ready. And most people now want the MS3 features which is understandable.

Jean
by jbelanger
Wed Jul 31, 2019 3:08 pm
Forum: I/O Extender
Topic: Logger Board with GPS
Replies: 11
Views: 151

Re: Logger Board with GPS

I'm sorry, it should be an offset of 122 not 124 for the speed in knots. And you actually can get the speed in km/h with an offset of 139 but that will depend on how your GPS module is configured; this requires the NMEA sentence for GPVTG to be sent by the module which I don't think is there by defa...
by jbelanger
Tue Jul 30, 2019 2:39 pm
Forum: I/O Extender
Topic: Logger Board with GPS
Replies: 11
Views: 151

Re: Logger Board with GPS

Unfortunately, you won't be able to get the speed through an offset tweak only because the later firmware has a new speed format to have it in km/h whereas the old firmware has it in knots (directly from the GPS data). The MS3 code assumes that the speed is in km/h. If the 1.852 factor between the t...
by jbelanger
Tue Jul 30, 2019 12:44 pm
Forum: I/O Extender
Topic: Logger Board with GPS
Replies: 11
Views: 151

Re: Logger Board with GPS

And one more thing. For updating the IOx firmware, the easiest way is to use the port scanner . If you don't already have it, download it and use it. Note that it only works on Windows. Also, make sure to save your current msq before upgrading. You can also post it here if you have issues going to t...
by jbelanger
Tue Jul 30, 2019 12:36 pm
Forum: I/O Extender
Topic: Logger Board with GPS
Replies: 11
Views: 151

Re: Logger Board with GPS

The fact you have an old IOx firmware is the issue. The data order has changed in the code (and in the ini) for the GPS to keep all the data read by the MS3 in the correct order while using only 2 full CAN messages. You will need to change the firmware to this version . Then you will be able to use ...
by jbelanger
Tue Jul 23, 2019 12:50 am
Forum: I/O Extender
Topic: TinyIOx speed input and logic condition
Replies: 3
Views: 72

Re: TinyIOx speed input and logic condition

Yes, you can get a speed but not directly. You need to enable PWM polling and then you need to convert the clock ticks into a speed in TunerStudio. There is some discussion about getting a shaft speed here: http://forum.jbperf.com/viewtopic.php?f=9&t=1467. The same basic idea can be used for wheel s...
by jbelanger
Mon Jul 22, 2019 9:21 pm
Forum: I/O Extender
Topic: TinyIOx speed input and logic condition
Replies: 3
Views: 72

Re: TinyIOx speed input and logic condition

Ryan, I've split this because it was a separate subject which needed its own thread. I'm not sure I understand what the MS2 role is in this. You can have a speed input on the TIOx and use it for a programmable on/off output together with one or more logic conditions with other inputs. Please be more...
by jbelanger
Mon Jul 22, 2019 10:35 am
Forum: JimStim
Topic: RPM Not synced for MS3 Goldbox connected to jimstim
Replies: 1
Views: 56

Re: RPM Not synced for MS3 Goldbox connected to jimstim

I don't know much about the Gold box so you would be better off posting on the msextra forum. Also, when you post there post an msq and a datalog. It's probably also a good idea to post a composite log.

Jean
by jbelanger
Fri Jul 19, 2019 12:11 pm
Forum: I/O Extender
Topic: Logger Board with GPS
Replies: 11
Views: 151

Re: Logger Board with GPS

The VBAT jumper is a solder jumper, i.e., 2 pads that very close to one another and you need to apply solder to short them together. There are actually 5 of them for the GPS module and they all need to be set for the GPS module to work. That was done to allow changes in case the GPS module this was ...
by jbelanger
Thu Jul 18, 2019 3:51 pm
Forum: I/O Extender
Topic: Logger Board with GPS
Replies: 11
Views: 151

Re: Logger Board with GPS

I should have added that if you don't care about always doing a cold boot for the GPS module (longer to lock onto satellites) and don't care about keeping the realtime clock at the correct time/date, you can always connect the VBat pad to the 3.3V pad and that will provide the needed votage to both ...
by jbelanger
Thu Jul 18, 2019 3:37 pm
Forum: I/O Extender
Topic: Logger Board with GPS
Replies: 11
Views: 151

Re: Logger Board with GPS

You should be able to use the default data on the MS3. You can have a look at ini file for the IOx and you will see that the offset for gps_latdeg is 128 (in the OutputChannels section) which is also the default offset on the MS3 in the CAN GPS settings. There are 2 CAN messages with 8 bytes each so...
by jbelanger
Tue Jul 16, 2019 12:29 pm
Forum: 4-Channel Driver
Topic: No spark on number 3?
Replies: 3
Views: 72

Re: No spark on number 3?

If you have a jumper between the ground pin and the pad that means you are using the external ground and you need to connect that ground to the JimStim ground when bench testing. The fact you 3 working channels is just a luck of the draw and you're working in a unstable state of the chip.

Jean
by jbelanger
Mon Jul 15, 2019 5:57 pm
Forum: Dual VR
Topic: Dual VR V2.1
Replies: 62
Views: 53704

Re: Dual VR V2.1

That's on the input side so that has no impact on the 4 channel board. And for the dual VR board, this whole circuit should be bypassed. You should remove C11 and R11 and connect the output of the dual VR board (OUT1 or 2) to a pad that connects directly to the CPU on IRQ-1 (pin 14 on the CPU). I do...
by jbelanger
Thu Jul 11, 2019 12:45 pm
Forum: Dual VR
Topic: Dual VR V2.1
Replies: 62
Views: 53704

Re: Dual VR V2.1

If you look at the schematics you will see that C21 is actually Vref so powering the dual VR board may introduce some noise on the sensors. It would be better to power from some other component on the 5V supply. Check page 4 of the schematics: http://www.msextra.com/doc/general/pix/megasquirt_ShemV2...
by jbelanger
Thu Jul 11, 2019 12:41 pm
Forum: Introduce yourself
Topic: Been an MSextra user for a while, but doing some mods.
Replies: 1
Views: 469

Re: Been an MSextra user for a while, but doing some mods.

Hi and welcome to the forum!

Jean
by jbelanger
Wed Jul 10, 2019 11:51 pm
Forum: Peak&Hold Driver
Topic: P&H boards and parts availability
Replies: 8
Views: 305

Re: P&H boards and parts availability

That looks fine. The FR302 or FR303 is available from Mouser from different manufacturers (the FR303 has a 200V reverse voltage instead of the 100V for the FR302 but 100V is sufficient). This link will give you plenty of choices for a replacement from Digikey. Also, it is basically the same as D5 an...
by jbelanger
Fri Jul 05, 2019 3:46 pm
Forum: Peak&Hold Driver
Topic: P&H v1.1b Injector Impedence
Replies: 5
Views: 1259

Re: P&H v1.1b Injector Impedence

Yes. The peak current will obviously never be reached and then the hold current will continue to provide full battery voltage to the injector as long as it is no more than 1A. If the injector impedance is such that full battery voltage would generate more than 1A then the circuit will limit the curr...
by jbelanger
Tue Jul 02, 2019 12:16 am
Forum: General
Topic: Tables and Offset Settings after cofiguration error
Replies: 11
Views: 536

Re: Tables and Offset Settings after cofiguration error

You have enabled the digital I/Os on the IOx and you have the ports polling enabled on the MS3 for an input port but I don't see that you are using any CANIN on your MS3. Also, you have the settings all wrong for the ports on the IOx because you have only an output port configured as a single PWM ou...