Yes, but it depends on the part No. The measurement frequency will be F_in/2¹ to F_in/2¹⁶, where F_in is the input clock frequency to the clock divider. Please check the pin configuration and get further information in the related Technical Reference Manual.

Please refer to the following flow to measure the internal or external clock from clock out (CLKO) pin.

Example: (NUC100 Series)

/* Set GPIO pin as CLKO pin */

SYS->GPBMFP.CPO0_CLKO_AD0 = 1;

SYS->ALTMFP.PB12_CLKO = 1;

/* Frequency Divider Output */

SYSCLK->CLKSEL2.FRQDIV_S = 0; // select F_in source form 12 MHz

SYSCLK->APBCLK.FDIV_EN = 1; // FRQDIV_CLK enable

SYSCLK->FRQDIV.FDIV_EN = 1; // Divider enable

SYSCLK->FRQDIV.FSEL = 0; // CLKO = F_in / 2^(N+1)

000002001

000002002

Products:	Microcontrollers ,Arm Cortex-M0 MCUs ,M051 Base Series ,M0518 Series ,Mini51 Base Series ,Nano100/102 Base Series ,Nano110/112 LCD Series ,Nano120 USB Series ,Nano130 Advanced Series ,NUC029 Series ,NUC100/200 Advanced Series ,NUC120/122/123/220 USB Series ,NUC130/230 CAN Series ,NUC131/NUC1311 CAN Series ,NUC140/240 Connectivity Series ,Arm Cortex-M4 MCUs ,M451 Base Series ,M451M Series ,M452 USB Series ,M453 CAN Series ,NUC442/472 Series ,NUC505 Series
Applications:
Function:	Others

Video Center

Technical Support

Technical Community

Learning Center

Security

Partnership Innovation Center

常见问答

FAQ

Does the NuMicro™ family provide the clock output pin to measure the internal or external clock? Issue Date：2015-02-09

以綠色半導體技術豐富人類生活的隱形冠軍

内容

您是否有找到您需要的信息 ?

版面配置

您是否觉得容易找寻您需要的信息 ?

版面样式

您对于网站颜色、图片配置等是否觉得满意?