Arduino nano 33ble clock output 16mhz

[simme008]

Hi im trying to output a 16mhz signal on one of the gpio pins but the max frequency im able to reach is 8mhz.
I used the code from this thread.

1Mhz clock on arduino nano 33 ble

Welcome to the forum. You can use a timer and the PPI system to create a signal at an IO pin without any software intervention after the initial configuration. Here is an example. This is not a beginners tutorial. You will need to read the nRF datasheet if you want to do major modifications. This might also break other functionality that makes use of the timer and ppi channel. /* This example shows how to use a nRF52840 Timer and PPI to create square wave signal at a pin. The signal is cr…

Shouldnt the arduino nano ble33 be able to output a higher frequency because it runs at 64mhz instead of 16mhz?

[Klaus_K]

@simme008

Shouldnt the arduino nano ble33 be able to output a higher frequency because it runs at 64mhz instead of 16mhz?

The processor may run at 64MHz but the timer base frequency is 16MHz. Have a look at the nRF52840 datasheet section 6.30 Timer.