EFR32 Blue Gecko 12 Software Documentation  efr32bg12-doc-5.1.2
Data Structures | Enumerations | Functions
SYSTEM
EMLIB

Detailed 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 the DEVINFO and SCB blocks. Functions to configure and read status from the FPU are available for compatible devices.

Data Structures

struct  SYSTEM_CalAddrVal_TypeDef
 
struct  SYSTEM_ChipRevision_TypeDef
 

Enumerations

enum  SYSTEM_FpuAccess_TypeDef {
  fpuAccessDenied = (0x0 << 20),
  fpuAccessPrivilegedOnly = (0x5 << 20),
  fpuAccessReserved = (0xA << 20),
  fpuAccessFull = (0xF << 20)
}
 
enum  SYSTEM_PartFamily_TypeDef {
  systemPartFamilyEfm32Gecko = _DEVINFO_PART_DEVICE_FAMILY_EFM32G,
  systemPartFamilyEfm32Giant = _DEVINFO_PART_DEVICE_FAMILY_EFM32GG,
  systemPartFamilyEfm32Tiny = _DEVINFO_PART_DEVICE_FAMILY_EFM32TG,
  systemPartFamilyEfm32Leopard = _DEVINFO_PART_DEVICE_FAMILY_EFM32LG,
  systemPartFamilyEfm32Wonder = _DEVINFO_PART_DEVICE_FAMILY_EFM32WG,
  systemPartFamilyEfm32Zero = _DEVINFO_PART_DEVICE_FAMILY_EFM32ZG,
  systemPartFamilyEfm32Happy = _DEVINFO_PART_DEVICE_FAMILY_EFM32HG,
  systemPartFamilyEfm32Pearl1B = _DEVINFO_PART_DEVICE_FAMILY_EFM32PG1B,
  systemPartFamilyEfm32Jade1B = _DEVINFO_PART_DEVICE_FAMILY_EFM32JG1B,
  systemPartFamilyEfm32Pearl12B = _DEVINFO_PART_DEVICE_FAMILY_EFM32PG12B,
  systemPartFamilyEfm32Jade12B = _DEVINFO_PART_DEVICE_FAMILY_EFM32JG12B,
  systemPartFamilyEfm32Pearl13B = _DEVINFO_PART_DEVICE_FAMILY_EFM32PG13B,
  systemPartFamilyEfm32Jade13B = _DEVINFO_PART_DEVICE_FAMILY_EFM32JG13B,
  systemPartFamilyEzr32Wonder = _DEVINFO_PART_DEVICE_FAMILY_EZR32WG,
  systemPartFamilyEzr32Leopard = _DEVINFO_PART_DEVICE_FAMILY_EZR32LG,
  systemPartFamilyEzr32Happy = _DEVINFO_PART_DEVICE_FAMILY_EZR32HG,
  systemPartFamilyMighty1P = _DEVINFO_PART_DEVICE_FAMILY_EFR32MG1P,
  systemPartFamilyMighty1B = _DEVINFO_PART_DEVICE_FAMILY_EFR32MG1B,
  systemPartFamilyMighty1V = _DEVINFO_PART_DEVICE_FAMILY_EFR32MG1V,
  systemPartFamilyBlue1P = _DEVINFO_PART_DEVICE_FAMILY_EFR32BG1P,
  systemPartFamilyBlue1B = _DEVINFO_PART_DEVICE_FAMILY_EFR32BG1B,
  systemPartFamilyBlue1V = _DEVINFO_PART_DEVICE_FAMILY_EFR32BG1V,
  systemPartFamilyFlex1P = _DEVINFO_PART_DEVICE_FAMILY_EFR32FG1P,
  systemPartFamilyFlex1B = _DEVINFO_PART_DEVICE_FAMILY_EFR32FG1B,
  systemPartFamilyFlex1V = _DEVINFO_PART_DEVICE_FAMILY_EFR32FG1V,
  systemPartFamilyMighty2P = _DEVINFO_PART_DEVICE_FAMILY_EFR32MG2P,
  systemPartFamilyMighty12P = _DEVINFO_PART_DEVICE_FAMILY_EFR32MG12P,
  systemPartFamilyMighty12B = _DEVINFO_PART_DEVICE_FAMILY_EFR32MG12B,
  systemPartFamilyMighty12V = _DEVINFO_PART_DEVICE_FAMILY_EFR32MG12V,
  systemPartFamilyBlue12P = _DEVINFO_PART_DEVICE_FAMILY_EFR32BG12P,
  systemPartFamilyBlue12B = _DEVINFO_PART_DEVICE_FAMILY_EFR32BG12B,
  systemPartFamilyBlue12V = _DEVINFO_PART_DEVICE_FAMILY_EFR32BG12V,
  systemPartFamilyFlex12P = _DEVINFO_PART_DEVICE_FAMILY_EFR32FG12P,
  systemPartFamilyFlex12B = _DEVINFO_PART_DEVICE_FAMILY_EFR32FG12B,
  systemPartFamilyFlex12V = _DEVINFO_PART_DEVICE_FAMILY_EFR32FG12V,
  systemPartFamilyMighty13P = _DEVINFO_PART_DEVICE_FAMILY_EFR32MG13P,
  systemPartFamilyMighty13B = _DEVINFO_PART_DEVICE_FAMILY_EFR32MG13B,
  systemPartFamilyMighty13V = _DEVINFO_PART_DEVICE_FAMILY_EFR32MG13V,
  systemPartFamilyBlue13P = _DEVINFO_PART_DEVICE_FAMILY_EFR32BG13P,
  systemPartFamilyBlue13B = _DEVINFO_PART_DEVICE_FAMILY_EFR32BG13B,
  systemPartFamilyBlue13V = _DEVINFO_PART_DEVICE_FAMILY_EFR32BG13V,
  systemPartFamilyFlex13P = _DEVINFO_PART_DEVICE_FAMILY_EFR32FG13P,
  systemPartFamilyFlex13B = _DEVINFO_PART_DEVICE_FAMILY_EFR32FG13B,
  systemPartFamilyFlex13V = _DEVINFO_PART_DEVICE_FAMILY_EFR32FG13V,
  systemPartFamilyGecko = _DEVINFO_PART_DEVICE_FAMILY_G,
  systemPartFamilyGiant = _DEVINFO_PART_DEVICE_FAMILY_GG,
  systemPartFamilyTiny = _DEVINFO_PART_DEVICE_FAMILY_TG,
  systemPartFamilyLeopard = _DEVINFO_PART_DEVICE_FAMILY_LG,
  systemPartFamilyWonder = _DEVINFO_PART_DEVICE_FAMILY_WG,
  systemPartFamilyZero = _DEVINFO_PART_DEVICE_FAMILY_ZG,
  systemPartFamilyHappy = _DEVINFO_PART_DEVICE_FAMILY_HG,
  systemPartFamilyUnknown = 0xFF
}
 

Functions

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

Enumeration Type Documentation

enum SYSTEM_FpuAccess_TypeDef

Floating point coprocessor 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.

Definition at line 244 of file em_system.h.

enum SYSTEM_PartFamily_TypeDef

Family identifiers.

Enumerator
systemPartFamilyEfm32Gecko 

EFM32 Gecko Device Family

systemPartFamilyEfm32Giant 

EFM32 Giant Gecko Device Family

systemPartFamilyEfm32Tiny 

EFM32 Tiny Gecko Device Family

systemPartFamilyEfm32Leopard 

EFM32 Leopard Gecko Device Family

systemPartFamilyEfm32Wonder 

EFM32 Wonder Gecko Device Family

systemPartFamilyEfm32Zero 

EFM32 Zero Gecko Device Family

systemPartFamilyEfm32Happy 

EFM32 Happy Gecko Device Family

systemPartFamilyEfm32Pearl1B 

EFM32 Pearl Gecko Series 1 Config 1 Basic Device Family

systemPartFamilyEfm32Jade1B 

EFM32 Jade Gecko Series 1 Config 1 Basic Device Family

systemPartFamilyEfm32Pearl12B 

EFM32 Pearl Gecko Series 1 Config 2 Basic Device Family

systemPartFamilyEfm32Jade12B 

EFM32 Jade Gecko Series 1 Config 2 Basic Device Family

systemPartFamilyEfm32Pearl13B 

EFM32 Pearl Gecko Series 1 Config 3 Basic Device Family

systemPartFamilyEfm32Jade13B 

EFM32 Jade Gecko Series 1 Config 3 Basic Device Family

systemPartFamilyEzr32Wonder 

EZR32 Wonder Device Family

systemPartFamilyEzr32Leopard 

EZR32 Leopard Device Family

systemPartFamilyEzr32Happy 

EZR32 Happy Device Family

systemPartFamilyMighty1P 

EFR32 Mighty Gecko Series 1 Config 1 Premium Device Family

systemPartFamilyMighty1B 

EFR32 Mighty Gecko Series 1 Config 1 Basic Device Family

systemPartFamilyMighty1V 

EFR32 Mighty Gecko Series 1 Config 1 Value Device Family

systemPartFamilyBlue1P 

EFR32 Blue Gecko Series 1 Config 1 Premium Device Family

systemPartFamilyBlue1B 

EFR32 Blue Gecko Series 1 Config 1 Basic Device Family

systemPartFamilyBlue1V 

EFR32 Blue Gecko Series 1 Config 1 Value Device Family

systemPartFamilyFlex1P 

EFR32 Flex Gecko Series 1 Config 1 Premium Device Family

systemPartFamilyFlex1B 

EFR32 Flex Gecko Series 1 Config 1 Basic Device Family

systemPartFamilyFlex1V 

EFR32 Flex Gecko Series 1 Config 1 Value Device Family

systemPartFamilyMighty2P 

EFR32 Mighty Gecko Series 1 Config 2 Premium Device Family

systemPartFamilyMighty12P 

EFR32 Mighty Gecko Series 1 Config 2 Premium Device Family

systemPartFamilyMighty12B 

EFR32 Mighty Gecko Series 1 Config 2 Basic Device Family

systemPartFamilyMighty12V 

EFR32 Mighty Gecko Series 1 Config 2 Value Device Family

systemPartFamilyBlue12P 

EFR32 Blue Gecko Series 1 Config 2 Premium Device Family

systemPartFamilyBlue12B 

EFR32 Blue Gecko Series 1 Config 2 Basic Device Family

systemPartFamilyBlue12V 

EFR32 Blue Gecko Series 1 Config 2 Value Device Family

systemPartFamilyFlex12P 

EFR32 Flex Gecko Series 1 Config 2 Premium Device Family

systemPartFamilyFlex12B 

EFR32 Flex Gecko Series 1 Config 2 Basic Device Family

systemPartFamilyFlex12V 

EFR32 Flex Gecko Series 1 Config 2 Value Device Family

systemPartFamilyMighty13P 

EFR32 Mighty Gecko Series 1 Config 3 Premium Device Family

systemPartFamilyMighty13B 

EFR32 Mighty Gecko Series 1 Config 3 Basic Device Family

systemPartFamilyMighty13V 

EFR32 Mighty Gecko Series 1 Config 3 Value Device Family

systemPartFamilyBlue13P 

EFR32 Blue Gecko Series 1 Config 3 Premium Device Family

systemPartFamilyBlue13B 

EFR32 Blue Gecko Series 1 Config 3 Basic Device Family

systemPartFamilyBlue13V 

EFR32 Blue Gecko Series 1 Config 3 Value Device Family

systemPartFamilyFlex13P 

EFR32 Flex Gecko Series 1 Config 3 Premium Device Family

systemPartFamilyFlex13B 

EFR32 Flex Gecko Series 1 Config 3 Basic Device Family

systemPartFamilyFlex13V 

EFR32 Flex Gecko Series 1 Config 3 Value Device Family

systemPartFamilyGecko 

Gecko Device Family

systemPartFamilyGiant 

Giant Gecko Device Family

systemPartFamilyTiny 

Tiny Gecko Device Family

systemPartFamilyLeopard 

Leopard Gecko Device Family

systemPartFamilyWonder 

Wonder Gecko Device Family

systemPartFamilyZero 

Zero Gecko Device Family

systemPartFamilyHappy 

Happy Gecko Device Family

systemPartFamilyUnknown 

Unknown Device Family. The family id is missing on unprogrammed parts.

Definition at line 64 of file em_system.h.

Function Documentation

void SYSTEM_ChipRevisionGet ( SYSTEM_ChipRevision_TypeDef *  rev)

Get chip major/minor revision.

Parameters
[out]revLocation to place chip revision info.

Definition at line 58 of file em_system.c.

References _ROMTABLE_PID0_FAMILYLSB_MASK, _ROMTABLE_PID0_FAMILYLSB_SHIFT, _ROMTABLE_PID0_REVMAJOR_MASK, _ROMTABLE_PID0_REVMAJOR_SHIFT, _ROMTABLE_PID1_FAMILYMSB_MASK, _ROMTABLE_PID1_FAMILYMSB_SHIFT, _ROMTABLE_PID2_REVMINORMSB_MASK, _ROMTABLE_PID2_REVMINORMSB_SHIFT, _ROMTABLE_PID3_REVMINORLSB_MASK, _ROMTABLE_PID3_REVMINORLSB_SHIFT, SYSTEM_ChipRevision_TypeDef::family, SYSTEM_ChipRevision_TypeDef::major, SYSTEM_ChipRevision_TypeDef::minor, and ROMTABLE.

Referenced by CHIP_Init().

__STATIC_INLINE void SYSTEM_FpuAccessModeSet ( SYSTEM_FpuAccess_TypeDef  accessMode)

Set floating point coprocessor (FPU) access mode.

Parameters
[in]accessModeFloating point coprocessor access mode. See SYSTEM_FpuAccess_TypeDef for details.

Definition at line 277 of file em_system.h.

__STATIC_INLINE uint8_t SYSTEM_GetCalibrationTemperature ( void  )

Get the calibration temperature (in degrees Celsius).

Returns
The calibration temperature in Celsius.

Definition at line 466 of file em_system.h.

References _DEVINFO_CAL_TEMP_MASK, _DEVINFO_CAL_TEMP_SHIFT, and DEVINFO.

bool SYSTEM_GetCalibrationValue ( volatile uint32_t *  regAddress)

Get factory calibration value for a given peripheral register.

Parameters
[in]regAddressPeripheral calibration register address to get calibration value for. If a calibration value is found then this register is updated with the calibration value.
Returns
True if a calibration value exists, false otherwise.

Definition at line 93 of file em_system.c.

References SYSTEM_CalAddrVal_TypeDef::address, SYSTEM_CalAddrVal_TypeDef::calValue, and DEVINFO_BASE.

Referenced by OPAMP_Enable().

__STATIC_INLINE uint8_t SYSTEM_GetDevinfoRev ( void  )

Get DEVINFO revision.

Returns
Revision of the DEVINFO contents.

Definition at line 416 of file em_system.h.

References _DEVINFO_DEVINFOREV_DEVINFOREV_MASK, _DEVINFO_DEVINFOREV_DEVINFOREV_SHIFT, and DEVINFO.

__STATIC_INLINE SYSTEM_PartFamily_TypeDef SYSTEM_GetFamily ( void  )

Get family identifier of the MCU.

Note
This function retrievs the family id by reading the chip's device info structure in flash memory. The user can retrieve the family id directly by reading the DEVINFO->PART item and decode with the mask and shift #defines defined in <part_family>_devinfo.h (please refer to code below for details).
Returns
The family identifier of the MCU.

Definition at line 451 of file em_system.h.

References _DEVINFO_PART_DEVICE_FAMILY_MASK, _DEVINFO_PART_DEVICE_FAMILY_SHIFT, and DEVINFO.

__STATIC_INLINE uint32_t SYSTEM_GetFlashPageSize ( void  )

Get the flash page size in bytes.

Note
This function retrievs the correct value by reading the chip device info structure. If your binary is made for one specific device only, FLASH_PAGE_SIZE can be used instead.
Returns
The page size of the internal flash in bytes.

Definition at line 383 of file em_system.h.

References _DEVINFO_MEMINFO_FLASH_PAGE_SIZE_MASK, _DEVINFO_MEMINFO_FLASH_PAGE_SIZE_SHIFT, DEVINFO, FLASH_PAGE_SIZE, and SYSTEM_GetProdRev().

__STATIC_INLINE uint16_t SYSTEM_GetFlashSize ( void  )

Get the flash size (in KB).

Note
This function retrievs the correct value by reading the chip device info structure. If your binary is made for one specific device only, FLASH_SIZE can be used instead.
Returns
The size of the internal flash (in KB).

Definition at line 356 of file em_system.h.

References _DEVINFO_MSIZE_FLASH_MASK, _DEVINFO_MSIZE_FLASH_SHIFT, _DEVINFO_MSIZE_SRAM_MASK, _DEVINFO_MSIZE_SRAM_SHIFT, DEVINFO, and SYSTEM_GetProdRev().

__STATIC_INLINE uint16_t SYSTEM_GetPartNumber ( void  )

Get part number of the MCU.

Returns
The part number of the MCU.

Definition at line 431 of file em_system.h.

References _DEVINFO_PART_DEVICE_NUMBER_MASK, _DEVINFO_PART_DEVICE_NUMBER_SHIFT, and DEVINFO.

__STATIC_INLINE uint8_t SYSTEM_GetProdRev ( void  )

Get the production revision for this part.

Returns
Production revision for this part.

Definition at line 303 of file em_system.h.

References _DEVINFO_PART_PROD_REV_MASK, _DEVINFO_PART_PROD_REV_SHIFT, and DEVINFO.

Referenced by CHIP_Init(), SYSTEM_GetFlashPageSize(), SYSTEM_GetFlashSize(), and SYSTEM_GetSRAMSize().

__STATIC_INLINE uint16_t SYSTEM_GetSRAMSize ( void  )

Get the SRAM size (in KB).

Note
This function retrievs the correct value by reading the chip device info structure. If your binary is made for one specific device only, SRAM_SIZE can be used instead.
Returns
The size of the internal SRAM (in KB).

Definition at line 321 of file em_system.h.

References _DEVINFO_MSIZE_FLASH_MASK, _DEVINFO_MSIZE_FLASH_SHIFT, _DEVINFO_MSIZE_SRAM_MASK, _DEVINFO_MSIZE_SRAM_SHIFT, DEVINFO, and SYSTEM_GetProdRev().

__STATIC_INLINE uint64_t SYSTEM_GetUnique ( void  )

Get the unique number for this device.

Returns
Unique number for this device.

Definition at line 290 of file em_system.h.

References DEVINFO.