Cortex-M7 Control

General Description

Functions
uint32_t	Cy_SysGetCM7Status (uint8_t core)
	Gets the Cortex-M7 core power mode. More...
void	Cy_SysEnableCM7 (uint8_t core, uint32_t vectorTableOffset)
	Enables the Cortex-M7 core. More...
void	Cy_SysDisableCM7 (uint8_t core)
	Disables the Cortex-M7 core. More...
void	Cy_SysRetainCM7 (uint8_t core)
	Retains the Cortex-M7 core. More...
void	Cy_SysResetCM7 (uint8_t core)
	Resets the Cortex-M7 core. More...

Function Documentation

Cy_SysGetCM7Status()

uint32_t Cy_SysGetCM7Status

(

uint8_t

core

)

Gets the Cortex-M7 core power mode.

Parameters

core	Core type (CM7_0 or CM7_1).

Returns

System Macros
If 0: CY_SYS_CM7_STATUS_DISABLED
1: CY_SYS_CM7_STATUS_RESET
2: CY_SYS_CM7_STATUS_RETAINED
3: CY_SYS_CM7_STATUS_ENABLED

Cy_SysEnableCM7()

void Cy_SysEnableCM7	(	uint8_t	core,
		uint32_t	vectorTableOffset
	)

Enables the Cortex-M7 core.

The CPU is enabled once if it was in the disabled or retained mode.

Parameters

core	Core type (CM7_0 or CM7_1).
vectorTableOffset	The offset of the vector table base address from memory address 0x00000000. The offset should be multiple to 1024 bytes.

Cy_SysDisableCM7()

void Cy_SysDisableCM7

(

uint8_t

core

)

Disables the Cortex-M7 core.

Parameters

core	Core type (CM7_0 or CM7_1).

Warning

Do not call the function while the Cortex-M7 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-M7 core is in the Sleep or Deep Sleep low-power mode. Use the SysPm (System Power Management) 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_SysRetainCM7()

void Cy_SysRetainCM7

(

uint8_t

core

)

Retains the Cortex-M7 core.

Parameters

core	Core type (CM7_0 or CM7_1).

Warning

Do not call the function while the Cortex-M7 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-M7 core is in the Sleep or Deep Sleep low-power mode. Use the SysPm (System Power Management) 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_SysResetCM7()

void Cy_SysResetCM7

(

uint8_t

core

)

Resets the Cortex-M7 core.

Parameters

core	Core type (CM7_0 or CM7_1).

Warning

Do not call the function while the Cortex-M7 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-M7 core is in the Sleep or Deep Sleep low-power mode. Use the SysPm (System Power Management) 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.