SYSTEM - System Utils

Description

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.

Data Structures

struct SYSTEM_ChipRevision_TypeDef
Chip revision details.
struct SYSTEM_CalAddrVal_TypeDef
DEVINFO calibration address/value pair.

Functions

void SYSTEM_ChipRevisionGet ( SYSTEM_ChipRevision_TypeDef *rev)
Get a chip major/minor revision.
bool SYSTEM_GetCalibrationValue (volatile uint32_t *regAddress)
Get a factory calibration value for a given peripheral register.
SYSTEM_SecurityCapability_TypeDef SYSTEM_GetSecurityCapability (void)
Get family security capability.
uint8_t SYSTEM_GetDevinfoRev (void)
Get DEVINFO revision.
void SYSTEM_FpuAccessModeSet ( SYSTEM_FpuAccess_TypeDef accessMode)
Set floating point co-processor (FPU) access mode.
uint64_t SYSTEM_GetUnique (void)
Get the unique number for this device.
uint8_t SYSTEM_GetProdRev (void)
Get the production revision for this part.
uint16_t SYSTEM_GetSRAMSize (void)
Get the SRAM size (in KB).
uint16_t SYSTEM_GetFlashSize (void)
Get the flash size (in KB).
uint32_t SYSTEM_GetFlashPageSize (void)
Get the flash page size in bytes.
uint16_t SYSTEM_GetPartNumber (void)
Get the MCU part number.
SYSTEM_PartFamily_TypeDef SYSTEM_GetFamily (void)
Get the MCU family identifier.
uint8_t SYSTEM_GetCalibrationTemperature (void)
Get the calibration temperature (in degrees Celsius).

Enumerations

enum SYSTEM_PartFamily_TypeDef {
systemPartFamilyMighty24 = DEVINFO_PART_FAMILY_MG | (24 << _DEVINFO_PART_FAMILYNUM_SHIFT),
systemPartFamilyFlex24 = DEVINFO_PART_FAMILY_FG | (24 << _DEVINFO_PART_FAMILYNUM_SHIFT),
systemPartFamilyBlue24 = DEVINFO_PART_FAMILY_BG | (24 << _DEVINFO_PART_FAMILYNUM_SHIFT),
systemPartFamilyUnknown = 0xFF
}
Family identifiers.
enum SYSTEM_SecurityCapability_TypeDef {
securityCapabilityUnknown ,
securityCapabilityNA ,
securityCapabilityBasic ,
securityCapabilityRoT ,
securityCapabilitySE ,
securityCapabilityVault
}
Family security capability.
enum SYSTEM_FpuAccess_TypeDef {
fpuAccessDenied = (0x0 << 20),
fpuAccessPrivilegedOnly = (0x5 << 20),
fpuAccessReserved = (0xA << 20),
fpuAccessFull = (0xF << 20)
}
Floating point co-processor access modes.

Function Documentation

◆ SYSTEM_ChipRevisionGet()

void SYSTEM_ChipRevisionGet ( SYSTEM_ChipRevision_TypeDef * rev )

Get a chip major/minor revision.

Parameters
[out] rev A location to place the chip revision information.

◆ SYSTEM_GetCalibrationValue()

bool SYSTEM_GetCalibrationValue ( volatile uint32_t * regAddress )

Get a factory calibration value for a given peripheral register.

Parameters
[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.

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_GetDevinfoRev()

uint8_t SYSTEM_GetDevinfoRev ( void )
inline

Get DEVINFO revision.

Returns
Revision of the DEVINFO contents.

◆ SYSTEM_FpuAccessModeSet()

void SYSTEM_FpuAccessModeSet ( SYSTEM_FpuAccess_TypeDef accessMode )
inline

Set floating point co-processor (FPU) access mode.

Parameters
[in] accessMode Floating point co-processor access mode. See SYSTEM_FpuAccess_TypeDef for details.

◆ SYSTEM_GetUnique()

uint64_t SYSTEM_GetUnique ( void )
inline

Get the unique number for this device.

Returns
Unique number for this device.

◆ SYSTEM_GetProdRev()

uint8_t SYSTEM_GetProdRev ( void )
inline

Get the production revision for this part.

Returns
Production revision for this part.

◆ SYSTEM_GetSRAMSize()

uint16_t SYSTEM_GetSRAMSize ( void )
inline

Get the SRAM size (in KB).

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 )
inline

Get the flash size (in KB).

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 )
inline

Get the flash page size in bytes.

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 )
inline

Get the MCU part number.

Returns
The part number of MCU.

◆ SYSTEM_GetFamily()

SYSTEM_PartFamily_TypeDef SYSTEM_GetFamily ( void )
inline

Get the MCU family identifier.

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_GetCalibrationTemperature()

uint8_t SYSTEM_GetCalibrationTemperature ( void )
inline

Get the calibration temperature (in degrees Celsius).

Returns
Calibration temperature in Celsius.

Enumeration Type Documentation

◆ SYSTEM_PartFamily_TypeDef

enum SYSTEM_PartFamily_TypeDef

Family identifiers.

Enumerator
systemPartFamilyMighty24

EFR32 Mighty Gecko Series 2 Config 4 Value Device Family.

systemPartFamilyFlex24

EFR32 Flex Gecko Series 2 Config 4 Value Device Family.

systemPartFamilyBlue24

EFR32 Blue Gecko Series 2 Config 4 Value Device Family.

systemPartFamilyUnknown

Unknown Device Family.

Family ID is missing on unprogrammed parts.

◆ SYSTEM_SecurityCapability_TypeDef

enum 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.

◆ SYSTEM_FpuAccess_TypeDef

enum 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.