How to set T3.6 clock speed higher than 240?

[RichardFerraro]

I am driving led panels with SmartMatrix and Teensy 3.6.
I run at 240 MHz oversample.

With 64 x 64 panels, it works flawlessly.
With 128 by 64 I get crashes between 1 and 10 minutes.

I suspect it may be the Clock/DMA rate needs to be boosted.

I saw some discussion of overclocking even higher than 240 Mhz.

Can anyone direct me specifically to the values I need to change to try this > 240 Hz overclocking?

Thanks,

Richard

 

[defragster]

In your TeensyDuino installed boards.txt there are two commented lines.

Close the IDE - edit these two lines and open and there will be a new menu option for speed:

teensy36.menu.speed.256=256 MHz (overclock)
teensy36.menu.speed.256.build.fcpu=256000000

 

[RichardFerraro]

Brilliant. Thanks.

 

[defragster]

The Brilliance comes from FrankB ... I just remember how to enable it