Have you visually inspected the board under magnification to verify that the soldering looks good and no parts look cracked/burned? Read elsewhere where someone found a cracked cap (fortunately it was not critical) to...
You can go here to understand what the "blink" codes mean and can progress from there: https://www.pjrc.com/store/ic_mkl02_t4.html (near bottom of page).
According to that information; 3 Blinks = Flash Chip Error,...
Have you tried resetting it to factory? Does the factory reset run and does that revive it?
Memory Wipe & LED Blink Restore
Teensy 4.1 will fully erase its non-volatile memory and return the flash memory to a...
OK, just had time to check and the startup.c file at this location: "C:\Program Files (x86)\Arduino\hardware\teensy\avr\cores\teensy4" has this "code change":
__attribute__((optimize("O2"))) // added 20230107 to...
OMG just solved it! Was giving it one last go before setting up a vbox environment and remembered that I had a prior issue when I compiled a program using the Audio library with the compiler set to debug. The compiler...
Thanks for the comments and suggestions. My versions are (which should be good to go per your message):
Arduino 1.8.19
Teensyduino 1.57
Teensy Loader 1.75.
I don't have a second computer but I will see if I can...
This is driving me NUTS! I have two newly acquired and assembled PT8211(s) that I am trying to pair with Teensy 4.1 boards that are no Ethernet. One is lockable and one is not. The lockable has the PT8211 in a top mount...
I encountered a similar issue a little while back and in my case the error condition was caused by a combination of the libraries I was using and the compiler flags. Not saying your issue is this but worth checking.
...
Well a LOT of information is contained at this page and its sub pages: https://www.pjrc.com/teensy/
There are tutorials for the audio library (some) but most of the information is documentation about the hardware and...
I believe that the teensy libraries (to include the audio library) only work with the teensy hardware. If you load up the teensy board definition into the IDE and install the libraries you should be able to...
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