Yes, I just got back from testing, and when pin 25 is held to ground, it cannot be programmed when the unit is locked.
I haven't yet tested to see if that will affect my application, as I am using pin 25 as an address line. Does anyone think...
Okay, I was able to find the gist of the issue, although I cannot fully explain it. Bottom line is, once it is set to locked it can no longer be programmed while the Teensy is in the circuit. (Mind you, that is our circuit, so that is probably...
We have purchased a large quantity of Lockable Teensy 4.1 units. Initially we have set the encryption feature on these units by using the "Fuse Write Sketch" program and proceeded to download and test our application. All worked great. Now, it...