I would like to decrease the clock speed of Teensy 3.5 to reduce current. Is this possible without breaking all sorts of timing routines including USB communications? If so, how do I do it?
Ehm.. if you use USB: Why do you want to save power? What's the host?
I still do not understand..
I you have USB, it powers your Teensy. Sure, you can disable this, but why, if a USB connection is available (and needed, according to your Question "..Is this possible without breaking all sorts of timing routines including USB communications" ) ? The USB-Host needs power too. Is it a notebook ?
Sorry, but I think, there are important infomation missing
I apologize for the confusion. I will use USB to program T3.5 and initial debug. Once the device is built Teensy will communicate through UART or I2C and will not be connected through USB. I did not know that you could reduce clock speed right in Arduino and I was concerned that reducing it might break USB communications.