7 years, 2 months ago.

Operating Frequecncy of Seeduino Arch Cortex-M0 core

I am using Seeeduino Arch development board with preloaded boot loader. It operates with LPC11u24 micro-controller with Cortex-Mo core. From the datasheet I got to know that, by default the system clock will be internal RC oscillator @12MhZ. Since the board is already loaded with boot loader and I am using mbed library, What is the best way to check clock frequency at which CPU core is operating.

1 Answer

7 years, 2 months ago.

Hello Gijo Peter,

there's one variable which is named SystemCoreClock.

extern uint32_t SystemCoreClock;     /*!< System Clock Frequency (Core Clock)  */


Accepted Answer