System Functions

General Description

The following system functions implement CMSIS Core functions. Refer to the [CMSIS documentation] (http://www.keil.com/pack/doc/CMSIS/Core/html/group__system__init__gr.html "System and Clock Configuration") for more details.

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

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().