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Thread: Teensy Comparison Website (Non PRJC)

  1. #1
    Senior Member+ mjs513's Avatar
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    Teensy Comparison Website (Non PRJC)

    Accidently I came across a web site that compares Teensy 3.x specs. Looks kind of new as only the comparison's are available but not much else. Thought it might be of interest: http://teensyguide.com/teensy-version-comparison/

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    Ok that's an 'interesting' page. Someone put a bit of work in the comparison section, but a lot of the text is lorem ipsum and dated 2016.

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    Senior Member+ defragster's Avatar
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    There was a forum post some time back ( I don't find now) where the person put out some info and was going to do something like that.

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    Senior Member+ mjs513's Avatar
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    Looks like he started then it just died. Too bad. Would have been interesting. Looks like some of it was going where PRJC wants to go with FAQs, etc.

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    Senior Member+ MichaelMeissner's Avatar
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    In terms of comparisons between the Teensys, I maintain a google docs spreadsheet for my own use that tries to summarize the differences between the Teensy models:

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    Senior Member+ mjs513's Avatar
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    All I can say is wow! Looked at the workbook, great reference source. You put in a lot of time to maintain that one. Nice. I have a folder of boards and shields with the various pinouts that I use for reference.

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    Senior Member+ MichaelMeissner's Avatar
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    Quote Originally Posted by mjs513 View Post
    All I can say is wow! Looked at the workbook, great reference source. You put in a lot of time to maintain that one. Nice. I have a folder of boards and shields with the various pinouts that I use for reference.
    Assuming it was meant for me, and not the original link, thanks.

  8. #8
    Quote Originally Posted by MichaelMeissner View Post
    In terms of comparisons between the Teensys, I maintain a google docs spreadsheet for my own use that tries to summarize the differences between the Teensy models:
    Thanks @MichaelMeissner! The spreadsheets are really useful, I tried to make a similar visual comparison sheet in Inkscape for comparing Touch pins, no where near the detail you have here.

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    @MichaelMeissner:

    Awesome (hard) work! This is a must have document. But still I have a suggestion: could you specify the FTM channel for every PWM pin (it helps when you're working with pairs) and the ADC hardware for every analog input (useful for differential/simultaneous readings)? Something like this:

    Code:
         
    ============
    22  FTM0_CH0
    23  FTM0_CH1
    =
     9  FTM0_CH2
    10  FTM0_CH3
    =
     6  FTM0_CH4
    20  FTM0_CH5
    =
    21  FTM0_CH6
     5  FTM0_CH7
    ============
     3  FTM1_CH0
     4  FTM1_CH1
    ============
    32  FTM2_CH0
    25  FTM2_CH1
    ============
    
    ========================
    A0  ADC0_SE5b
    A1  ADC0_SE14
    A2  ADC0_SE8  / ADC1_SE8
    A3  ADC0_SE9  / ADC1_SE9
    A4  ADC0_SE13
    A5  ADC0_SE12
    A6  ADC0_SE6b
    A7  ADC0_SE7b
    A8  ADC0_SE15
    A9  ADC0_SE4b
    A10 ADC0_DP0  / ADC1_DP3
    A11 ADC0_DM0  / ADC1_DM3
    A12 ADC0_DP0  / ADC1_DP3
    A13 ADC0_DM3  / ADC1_DM0
    A14 ADC0_SE23
    A15             ADC1_SE5a
    A16             ADC1_SE5b
    A17             ADC1_SE4b
    A18             ADC1_SE6b
    A19             ADC1_SE7b
    A20             ADC1_SE4a
    ========================

  10. #10
    Senior Member+ MichaelMeissner's Avatar
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    Quote Originally Posted by someteen View Post
    @MichaelMeissner:

    Awesome (hard) work! This is a must have document. But still I have a suggestion: could you specify the FTM channel for every PWM pin (it helps when you're working with pairs) and the ADC hardware for every analog input (useful for differential/simultaneous readings)?
    I'll think about it, but since I rarely use PWM or ADC hardware, it is hard to know what to include, and to make sure I have the right information for each of the processors. Another issue is just the width of the table is becoming an hassle. I suspect when the next processor comes out, I will drop the 3.0, just to shrink the width of the table. While I still have a few 3.0's lying around, I haven't used them in some time.

    It may be better to have another table with the more specific information in it.

  11. #11
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    Okay, you're right. After all, you can't include the full kinetis datasheet!

    It happened that I needed both FTM and ADCs for one of my previous projects and I was hardly find those informations (I had to look inside the pins_teensy.c and to read the @pedvide's great ADC library thread).

    Keep up the good work, I have bookmarked your docs already.

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