DIY Teensy 4.1 kicad files

jensa

Well-known member
Hi all,
I've now published my Kicad schematic and board files for making a custom T4.1 on https://github.com/jenschr/Teensy-4.1-example
This file has a known bug in that it turns the USB switch for the USB host feature off when it should be turned on. The part I used was dictated by the parts shortage, so you may want to change that part anyway.

Here are repositories for my other Teensy schematics:
T3.2 example files https://github.com/jenschr/Teensy3.2-example/
T3.6 example files https://github.com/jenschr/Teensy3.6-example/

My USB Type C connector repo may also be interesting:
https://github.com/jenschr/USB-C-Connectors

As you can see, the board is quite a bit larger than Paul's highly optimized board but this was sufficient for my purpose and 4 layer setup. Feel free to post pictures here if you use this as a basis for your own designs!

IMG_20220315_183842_s.jpg
 
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Amazing job!
Thank you for these files as a starting point, can't wait to make my own design.
For the BGA I would've tried a heat gun soldering station... thanks for the tip with the hot plate, never seen these for soldering. I hope to get all parts together and post a picture soon :cool:
 
It's ok and it works? :)
The next time I lay out this chip I'll be sure to read all of the PJRC page on this https://www.pjrc.com/store/ic_mkl02_t4.html. Scroll down and you'll find a great strategy for getting better connections to Power and GND than I have used In fact - be sure to read ALL of that page before laying out the board!
 
Hi all,
I've now published my Kicad schematic and board files for making a custom T4.1 on https://github.com/jenschr/Teensy-4.1-example
This file has a known bug in that it turns the USB switch for the USB host feature off when it should be turned on. The part I used was dictated by the parts shortage, so you may want to change that part anyway.

Here are repositories for my other Teensy schematics:
T3.2 example files https://github.com/jenschr/Teensy3.2-example/
T3.6 example files https://github.com/jenschr/Teensy3.6-example/

My USB Type C connector repo may also be interesting:
https://github.com/jenschr/USB-C-Connectors

As you can see, the board is quite a bit larger than Paul's highly optimized board but this was sufficient for my purpose and 4 layer setup. Feel free to post pictures here if you use this as a basis for your own designs!

View attachment 28454
Are the files now error free?
 
Even this?

No. That bug is still there, but it's just to change the MAX1562 into a MAX1563 and change the active high/low to get that to work. Alternatively, you could toggle it in the Teensy Files. Problem is just that it turns on when it should be off and vice versa.

Also - that is only relevant if you need to use the USB Host feature.
 
I tried changing the MAX1562 to a MAX1562HESA+ thinking that would fix it. (Note, I don't know what I'm doing and I don't need USB Host). Haven't powered up yet.
 
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