RESET-Pin as Output ?

[Frank B]

Are there any objections,to use the RESET pin of Teensy 3.5 / Teensy 3.6 as output to reset external chips (for example, for ILI9341)?
- For an "automatic" reset when re-programming the Teensy.

 

[PaulStoffregen]

Sure, it can be used that way. Just remember it's not 5V tolerant, like digital pins on 3.2 and 3.5.

 

[MichaelMeissner]

In the Adafruit forum, there was a discussion that tying the reset pin to the OLED reset did not work well with some microprocessors. In particular, I saw it when I had a Teensy in the Adafruit Teensy to Feather adapter and using the 128x32 OLED feather wing (the Teensy->Feather adapter attaches the program pin to the feather reset pin). A lot of times it would just produce snow on the OLED, though there were times when it seemed to work. Eventually, I just clipped the reset (program) pin in the OLED wing and used an external reset pin (https://forums.adafruit.com/viewtopic.php?f=57&t=100042)

 

[Frank B]

Thank you both
I will try it with the ILI9341.