SYSTEM - System Utils#
System API.
This module contains functions to read information such as RAM and Flash size, device unique ID, chip revision, family, and part number from DEVINFO and SCB blocks. Functions to configure and read status from FPU are available for compatible devices.
Modules#
Enumerations#
Family identifiers.
Floating point co-processor access modes.
Family security capability.
Functions#
Get a chip major/minor revision.
Get the MCU family identifier.
Get DEVINFO revision.
Set floating point co-processor (FPU) access mode.
Get a factory calibration value for a given peripheral register.
Get family security capability.
Get the unique number for this device.
Get the production revision for this part.
Get the SRAM Base Address.
Get the SRAM size (in KB).
Get the flash size (in KB).
Get the flash page size in bytes.
Get the MCU part number.
Get the calibration temperature (in degrees Celsius).
Enumeration Documentation#
SYSTEM_PartFamily_TypeDef#
SYSTEM_PartFamily_TypeDef
Family identifiers.
Enumerator | |
---|---|
systemPartFamilyFlex23 | EFR32 Flex Gecko Series 2 Config 3 Value Device Family. |
systemPartFamilyZen23 | EFR32 Zen Gecko Series 2 Config 3 Value Device Family. |
systemPartFamilyEfm32Pearl23 | EFM32 Pearl Gecko Series 2 Config 3 Value Device Family. |
systemPartFamilySideWalk23 | EFR32 Side Walk Gecko Series 2 Config 3 Value Device Family. |
systemPartFamilyUnknown | Unknown Device Family. |
SYSTEM_FpuAccess_TypeDef#
SYSTEM_FpuAccess_TypeDef
Floating point co-processor access modes.
Enumerator | |
---|---|
fpuAccessDenied | Access denied, any attempted access generates a NOCP UsageFault. |
fpuAccessPrivilegedOnly | Privileged access only, an unprivileged access generates a NOCP UsageFault. |
fpuAccessReserved | Reserved. |
fpuAccessFull | Full access. |
SYSTEM_SecurityCapability_TypeDef#
SYSTEM_SecurityCapability_TypeDef
Family security capability.
Enumerator | |
---|---|
securityCapabilityUnknown | Unknown security capability. |
securityCapabilityNA | Security capability not applicable. |
securityCapabilityBasic | Basic security capability. |
securityCapabilityRoT | Root of Trust security capability. |
securityCapabilitySE | Secure Element security capability. |
securityCapabilityVault | Secure Vault security capability. |
Function Documentation#
SYSTEM_ChipRevisionGet#
void SYSTEM_ChipRevisionGet (SYSTEM_ChipRevision_TypeDef * rev)
Get a chip major/minor revision.
Type | Direction | Argument Name | Description |
---|---|---|---|
SYSTEM_ChipRevision_TypeDef * | [out] | rev | A location to place the chip revision information. |
SYSTEM_GetFamily#
SYSTEM_PartFamily_TypeDef SYSTEM_GetFamily (void )
Get the MCU family identifier.
Type | Direction | Argument Name | Description |
---|---|---|---|
void | N/A |
Note
This function retrieves family ID by reading the chip's device info structure in flash memory. Users can retrieve family ID directly by reading DEVINFO->PART item and decode with mask and shift #defines defined in <part_family>_devinfo.h (refer to code below for details).
Returns
Family identifier of MCU.
SYSTEM_GetDevinfoRev#
uint8_t SYSTEM_GetDevinfoRev (void )
Get DEVINFO revision.
Type | Direction | Argument Name | Description |
---|---|---|---|
void | N/A |
Returns
Revision of the DEVINFO contents.
SYSTEM_FpuAccessModeSet#
void SYSTEM_FpuAccessModeSet (SYSTEM_FpuAccess_TypeDef accessMode)
Set floating point co-processor (FPU) access mode.
Type | Direction | Argument Name | Description |
---|---|---|---|
SYSTEM_FpuAccess_TypeDef | [in] | accessMode | Floating point co-processor access mode. See SYSTEM_FpuAccess_TypeDef for details. |
SYSTEM_GetCalibrationValue#
bool SYSTEM_GetCalibrationValue (volatile uint32_t * regAddress)
Get a factory calibration value for a given peripheral register.
Type | Direction | Argument Name | Description |
---|---|---|---|
volatile uint32_t * | [in] | regAddress | The peripheral calibration register address to get a calibration value for. If the calibration value is found, this register is updated with the calibration value. |
Returns
True if a calibration value exists, false otherwise.
SYSTEM_GetSecurityCapability#
SYSTEM_SecurityCapability_TypeDef SYSTEM_GetSecurityCapability (void )
Get family security capability.
Type | Direction | Argument Name | Description |
---|---|---|---|
void | N/A |
Note
This function retrieves the family security capability based on the device number. The device number is one letter and 3 digits: DEVICENUMBER = (alpha-'A')*1000 + numeric. i.e. 0d = "A000"; 1123d = "B123". The security capabilities are represented by SYSTEM_SecurityCapability_TypeDef.
Returns
Security capability of MCU.
SYSTEM_GetUnique#
uint64_t SYSTEM_GetUnique (void )
Get the unique number for this device.
Type | Direction | Argument Name | Description |
---|---|---|---|
void | N/A |
Returns
Unique number for this device.
SYSTEM_GetProdRev#
uint8_t SYSTEM_GetProdRev (void )
Get the production revision for this part.
Type | Direction | Argument Name | Description |
---|---|---|---|
void | N/A |
Returns
Production revision for this part.
SYSTEM_GetSRAMBaseAddress#
uint32_t SYSTEM_GetSRAMBaseAddress (void )
Get the SRAM Base Address.
Type | Direction | Argument Name | Description |
---|---|---|---|
void | N/A |
Note
This function is used to retrieve the base address of the SRAM.
Returns
Base address SRAM (32-bit unsigned integer).
SYSTEM_GetSRAMSize#
uint16_t SYSTEM_GetSRAMSize (void )
Get the SRAM size (in KB).
Type | Direction | Argument Name | Description |
---|---|---|---|
void | N/A |
Note
This function retrieves SRAM size by reading the chip device info structure. If your binary is made for one specific device only, use SRAM_SIZE instead.
Returns
Size of internal SRAM (in KB).
SYSTEM_GetFlashSize#
uint16_t SYSTEM_GetFlashSize (void )
Get the flash size (in KB).
Type | Direction | Argument Name | Description |
---|---|---|---|
void | N/A |
Note
This function retrieves flash size by reading the chip device info structure. If your binary is made for one specific device only, use FLASH_SIZE instead.
Returns
Size of internal flash (in KB).
SYSTEM_GetFlashPageSize#
uint32_t SYSTEM_GetFlashPageSize (void )
Get the flash page size in bytes.
Type | Direction | Argument Name | Description |
---|---|---|---|
void | N/A |
Note
This function retrieves flash page size by reading the chip device info structure. If your binary is made for one specific device only, use FLASH_PAGE_SIZE instead.
Returns
Page size of internal flash in bytes.
SYSTEM_GetPartNumber#
uint16_t SYSTEM_GetPartNumber (void )
Get the MCU part number.
Type | Direction | Argument Name | Description |
---|---|---|---|
void | N/A |
Returns
The part number of MCU.
SYSTEM_GetCalibrationTemperature#
uint8_t SYSTEM_GetCalibrationTemperature (void )
Get the calibration temperature (in degrees Celsius).
Type | Direction | Argument Name | Description |
---|---|---|---|
void | N/A |
Returns
Calibration temperature in Celsius.