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Type: Posts; User: noisymime

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  1. Replies
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    Thank you for this!!

    Thank you for this!!
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    Not sure if this is the best (Or correct) place...

    Not sure if this is the best (Or correct) place to request this, but would it be possible to get an update of the FlexCAN_T4 library included?

    We had an issue with the init routine of this...
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    There's a pair of diodes on the VBat circuit of...

    There's a pair of diodes on the VBat circuit of the Teensy 3.5 from what I can see (https://www.pjrc.com/teensy/schematic36.png). One is feeding 3v3 onto the controller pin, the other is on the VBat...
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    Unsafe for the VBat input or unsafe for the...

    Unsafe for the VBat input or unsafe for the battery?

    These ML batteries should be safe to fully discharge is my understanding, with the proviso that they 'only' get around 100 full charge cycles,...
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    Charging of RTC battery

    Due to some fairly tight physical constraints, I need to use a fairly small battery for my RTC. 20mm, 12mm and even 10mm are all too large and I'm looking at using a 6.8mm ML621 which is a...
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    It works with both ShadowDash...

    It works with both ShadowDash, MSDroid and RealDash today, so there's a few nice options for doing this sort of thing already :)
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    Alas, I've been a bit disappointed with it. Very...

    Alas, I've been a bit disappointed with it. Very much personal preference, but it's too hard for my liking.



    Yeah it's a bit ridiculous. The loop counter was 3 and bit full turns through :D
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    I've got a couple of concerns with the T4 as a...

    I've got a couple of concerns with the T4 as a long term thing. The first is around timers are there aren't quite as many on the T4 as there are on the T3.5, and that's a big thing on this codebase....
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    ECU running on Teensy 4.1 (and 3.5)

    I just got all the compatibility work done on the Speeduino firmware to allow support for the Teensy 4.1 and fired it up on a car. It was a 'fun' challenge deciphering the massive datasheet to get...
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    Not a huge deal at all, but any way of getting...

    Not a huge deal at all, but any way of getting CAN on pins 3/4 for compatibility with the CAN0 pins on the T3.5/3.6?
  11. Powering T3.5 with external or USB with muxer

    I've got a project that runs 90% of the time from an externally regulated 5v supply attached to VIN. However, the other 10% of the time I need to be able to attach and use the USB, both in cases...
  12. So with the upfront disclaimer that I might be an...

    So with the upfront disclaimer that I might be an idiot, .available() seems to be incrementing now, but it also appears to be returning a value that is twice what it should be. Using the original...
  13. Thanks so much Paul. I'm away from my T4 until...

    Thanks so much Paul. I'm away from my T4 until tomorrow, but I'll give it a crack then and report back
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    I'm still working through developing the T4.0...

    I'm still working through developing the T4.0 code for Speeduino. Even if the comms stuff was working right now, I haven't done all the timers stuff yet so it won't actually run an engine. I'll get...
  15. Just to confirm back, using a 3v3 USB serial...

    Just to confirm back, using a 3v3 USB serial adapter and Serial1 on the Teensy 4.0, everything works perfectly, so this problem is definitely within the USB serial implementation.
  16. After more playing, I've managed to confirm a few...

    After more playing, I've managed to confirm a few more things around this, but not exactly where the main problem is coming from. As best as I can tell, the serial RX interrupt is being disabled...
  17. A little more playing and I can see that there's...

    A little more playing and I can see that there's definitely an issue here with subsequent serial data being sent. It's not just that Serial.available() isn't being updated, it's that the subsequent...
  18. Assuming this should've been...

    Assuming this should've been serial.setTimeout(0), it made no difference.
  19. Teensy 4.0 Serial.available() stops incrementing

    OK, I really hope I'm doing something dumb, but I'm having all sorts of trouble with some of the serial functions under Teensy 4.

    The issue I'm seeing is that the Serial.available() stops...
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    Hey team, I received my Teensy 4 board today with...

    Hey team, I received my Teensy 4 board today with the hopes of getting my Speeduino ECU firmware running for it shortly. I'm experiencing what appear to be hard lockups of it though, seemingly serial...
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    Totally forgot to report back on this one, but...

    Totally forgot to report back on this one, but I've got my adapter board all finished off and working. It's not 100% in terms of pin coverage of the Mega, but it uses all of the through hole IO on...
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    So, I've just about got my adapter board finished...

    So, I've just about got my adapter board finished off. Ended up using a pair of LMV324LIDT quad op amps, basically exactly how Epyon describe, so thanks for the input!

    Will report back when I've...
  23. FTM Channel compare interrupts (Teensy 3.5)

    So I thought I'd do a bit of a write up around some of the work I'm doing with the FTM timer in the hopes of potentially making life easier for others wanting to do this in the future. The background...
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    This is the one and only thing that made the...

    This is the one and only thing that made the difference for me. I have an existing project based on the Mega 2560 that has a hard requirement for at least 3kb of EEPROM. For various reasons I didn't...
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    Thanks for the reply, and the diagram! That...

    Thanks for the reply, and the diagram!

    That was certainly the other option I'll look at if needed. Whilst the K64 datasheet does recommend the use of a 0.01 μF cap and talks about being able to...
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    5v to 3.3v analog translation

    I'm about to start porting a project of mine (http://speeduino.com) for the Teensy 3.5 and looking at making an adapter board that will allow the Teensy to plug into existing shield boards designed...
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