Introduction

This example shows how to initialize the clock system and output the CPU clock on a dedicated pin.

Main files:

clock_example2_sam4l.c: clock system example application
conf_board.h: board initialization configuration
conf_clock.h: system clock configuration
conf_example2.h: chip- or board-specific example configuration

Device Info

All SAM4L devices can be used.

Description of the example

This example makes use of the output GPIO function for a generic clock to output the CPU clock on a pin.

The generic clock and its corresponding GPIO pin and function are defined in conf_example2.h. The main system clock source and prescalers, along with any PLL and/or DFLL configuration, if supported, are defined in conf_clock.h.

Compilation Info

This software was written for the GNU GCC and IAR for SAM. Other compilers may or may not work.

Contact Information

For further information, visit Microchip.