SYSTEMEMLIB

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_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,
systemPartFamilyEzr32Wonder = _DEVINFO_PART_DEVICE_FAMILY_EZR32WG,
systemPartFamilyEzr32Leopard = _DEVINFO_PART_DEVICE_FAMILY_EZR32LG,
systemPartFamilyEzr32Happy = _DEVINFO_PART_DEVICE_FAMILY_EZR32HG,
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.
__STATIC_INLINE uint8_t SYSTEM_GetCalibrationTemperature (void)
Get the calibration temperature (in degrees Celsius).
bool SYSTEM_GetCalibrationValue (volatile uint32_t *regAddress)
Get factory calibration value for a given peripheral register.
__STATIC_INLINE SYSTEM_PartFamily_TypeDef SYSTEM_GetFamily (void)
Get family identifier of the MCU.
__STATIC_INLINE uint32_t SYSTEM_GetFlashPageSize (void)
Get the flash page size in bytes.
__STATIC_INLINE uint16_t SYSTEM_GetFlashSize (void)
Get the flash size (in KB).
__STATIC_INLINE uint16_t SYSTEM_GetPartNumber (void)
Get part number of the MCU.
__STATIC_INLINE uint8_t SYSTEM_GetProdRev (void)
Get the production revision for this part.
__STATIC_INLINE uint16_t SYSTEM_GetSRAMSize (void)
Get the SRAM size (in KB).
__STATIC_INLINE uint64_t SYSTEM_GetUnique (void)
Get the unique number for this device.

Enumeration Type Documentation

enum SYSTEM_PartFamily_TypeDef

Family identifiers.

Enumerator
systemPartFamilyEfm32Gecko

EFM32 Gecko Device Family

systemPartFamilyEfm32Giant

EFM32 Giant Gecko Series 0 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

systemPartFamilyEzr32Wonder

EZR32 Wonder Device Family

systemPartFamilyEzr32Leopard

EZR32 Leopard Device Family

systemPartFamilyEzr32Happy

EZR32 Happy 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] rev Location 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() , and USBD_Init() .

__STATIC_INLINE uint8_t SYSTEM_GetCalibrationTemperature ( void )

Get the calibration temperature (in degrees Celsius).

Returns
The calibration temperature in Celsius.

Definition at line 480 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] regAddress Peripheral 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 97 of file em_system.c .

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

Referenced by OPAMP_Enable() .

__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 466 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 400 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() .

Referenced by nvm3_halGetPageSize() .

__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 375 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 446 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 323 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 341 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 310 of file em_system.h .

References DEVINFO .