Cortex-M33 Control Functions

General Description

Functions
uint32_t	Cy_SysGetCM33Status (void)
	Returns the Cortex-M33 core power mode. More...
void	Cy_SysEnableCM33 (uint32_t vectorTableOffset, uint32_t waitus)
	Sets vector table base address and enables the Cortex-M33 core in secure mode. More...
void	Cy_SysResetCM33 (uint32_t waitus)
	Resets the Cortex-M33 core and waits for the mode to take the effect. More...
static uint32_t	cy_CbusRemapAddr (const void *addr)
	CBUS address remap remap address for masters on CBUS. More...
static uint32_t	cy_AhbRemapAddr (const void *addr)
	AHB address remap remap address for masters. More...

Function Documentation

Cy_SysGetCM33Status()

uint32_t Cy_SysGetCM33Status

(

void

)

Returns the Cortex-M33 core power mode.

Returns

Core Status Macros

Cy_SysEnableCM33()

void Cy_SysEnableCM33	(	uint32_t	vectorTableOffset,
		uint32_t	waitus
	)

Sets vector table base address and enables the Cortex-M33 core in secure mode.

Note

If the CPU is already enabled, it is reset and then enabled.

Parameters

vectorTableOffset	The offset of the vector table base address from memory address 0x00000000. The offset should be multiple to 1024 bytes.
waitus	The timeout value in microsecond used to wait for core to be booted. value zero is for infinite wait till the core is booted successfully.

Cy_SysResetCM33()

void Cy_SysResetCM33

(

uint32_t

waitus

)

Resets the Cortex-M33 core and waits for the mode to take the effect.

Parameters

waitus

The timeout value in microsecond used to wait for core to be reset. value zero is for infinite wait till the core is reset successfully.

Warning

Do not call the function while the Cortex-M33 is executing because such a call may corrupt/abort a pending bus-transaction by the CPU and cause unexpected behavior in the system including a deadlock. Call the function while the Cortex-M55 core is in the Sleep or Deep Sleep low-power mode. Use the Power Management (syspm) API to put the CPU into the low-power modes. Use the Cy_SysPm_ReadStatus() to get a status of the CPU.

cy_CbusRemapAddr()

static uint32_t cy_CbusRemapAddr ( const void *  addr )

inlinestatic

CBUS address remap remap address for masters on CBUS.

Parameters

[in]

addr

pointer to be remap

Return values

remap

address

cy_AhbRemapAddr()

static uint32_t cy_AhbRemapAddr ( const void *  addr )

inlinestatic

AHB address remap remap address for masters.

Parameters

[in]

addr

pointer to be remap

Return values

remap

address