System Functions

General Description

The following system functions implement CMSIS Core functions. Refer to the CMSIS documentation for more details.

Functions
void	SystemInit (void)
	For PSE8: More...
void	SystemCoreClockUpdate (void)
	Gets core clock frequency and updates SystemCoreClock, cy_Hfclk0FreqHz, and cy_PeriClkFreqHz. More...

Function Documentation

SystemInit()

void SystemInit

(

void

)

For PSE8:

Initializes the system:

• Unlocks and disables WDT.
• Calls the Cy_SystemInit() function.
• Calls SystemCoreClockUpdate().

SystemCoreClockUpdate()

void SystemCoreClockUpdate

(

void

)

Gets core clock frequency and updates SystemCoreClock, cy_Hfclk0FreqHz, and cy_PeriClkFreqHz.

Updates global variables used by the Cy_SysLib_Delay(), Cy_SysLib_DelayUs(), and Cy_SysLib_DelayCycles().