Teensyduino 3.6 - Digital Write Speed Test

The Teensyduino 3.6 has an amazing clock speed of 180 MHz. This is screaming fast! This will open up the possibility of is using this tiny little device for controlling some very fast and powerful things. For those of you who have worked with such devices, probably know that even if the clock speed is fast, that there is a lot of overhead associated with a microprocessor, and that the things it is capable of doing are limited to a fraction of the clock speed. This is the cost of using a flexible digital device. With that being said, just how fast can the Teensyduino 3.6 drive a digital output? would you believe 2.8 MHz? that is still pretty fast... I demonstrate how to do this with both the hardware, and IDE software side of things, in this video.

[johnc]

You need to connect the ground clip from the scope probe.