topic Re: Clock on MCXC243 in MCX Microcontrollers

Clock on MCXC243

ravicha — Mon, 03 Feb 2025 12:05:29 GMT

Here i attached the code file of MCXC243(48 pin) microcontroller where i m not able to genrate the clock plz anyone give me soution and correct the code

in the given code , code is break in below given function

static inline void CLOCK_SetEr32kClock(uint32_t src)

{

SIM->SOPT1 = ((SIM->SOPT1 & ~SIM_SOPT1_OSC32KSEL_MASK) | SIM_SOPT1_OSC32KSEL(src));

}

Re: Clock on MCXC243

Alice_Yang — Wed, 05 Feb 2025 09:03:19 GMT

Hello @ravicha

I recommend that you use the Clock Config Tools inside MCUXpresso IDE for configuration. After finish configuring. It can automatically generate code. It has a user - friendly interface.

Alice

Re: Clock on MCXC243

ravicha — Thu, 06 Feb 2025 05:57:26 GMT

hello @Alice_Yang thanks for your, here i have already done this settings for clock

Re: Clock on MCXC243

Alice_Yang — Wed, 12 Feb 2025 10:21:56 GMT

Hello @ravicha

Do you want to choose System oscillator (OSC32KCLK) as ERCLK32K? If so, you need to configure the external crystal oscillator or an external source. Checking from your code and the Clock Configuration view, it hasn't been configured.

Configuration as below:

Additionally, you need to add an external crystal oscillator to your hardware board.

Hope it helps.

Alice