How to debug Teensy3?

syso2342

Well-known member
Hi,

As some of you might know, I am working on a hybrid analog / digital synthesizer. Unfortunately there
are a few little bugs which make the Synth crash somewhere (it hangs) and serial debugging only
outputs the half of the string.

Is there any internal or external (jtag or whatever) debug possibility?
 
No JTAG I've seen except the recent one where the board is altered.
There's semi-debug-breakpoints, in the Visual Micro plug-in for free Atmel Studio 6 which targets AVR and Teensy 3. But it's Windows only.\
I use it - terrific IDE.
The IDE/Studio/Visual Micro are free; the debugger is free to try and a modest cost to own.
 
But this will need modification of the MINI54TAN firmware?
Update: Apparently not..
 
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The first of the mentioned posts is about a hardware-only debugger that effectively disables the Mini54. It suggests a hardware modification that would either require a removable jumper or an update to the Mini54.

The second thread mentions a software-only debugger. It does require an update of the Mini54 firmware.

The nice thing is that the Mini54 can be updated remotely. Paul did foresee this requirement and has used it in one of the past Teensyduino revisions to update the Mini bootloader. So, it's doable.
 
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