DocID027161 Rev 1

23/26

AN4617

Firmware migration using the library

25

3

Firmware migration using the library

Both STM32F0 and STM32L0 members are supported by new HAL (hardware abstraction

layer) firmware interface. It collects universal drivers working mostly upon predefined

structures of configuration data. This should ensure portable APIs across all the STM32

series in general for what concerns functional operations and control of given peripherals.

However, considering the IPs specificities and implementation differences between these

two subfamilies, some differences may appear mainly in the peripherals initialization,

definition of the configuration structures and range of valid enumerators to be applied into

them. Some functions could have different number of parameters.

There should be however no differences when handling any standard flow except support of

newly added features. User can find more detailed information in dedicated manuals

describing HAL firmware and migration between supported devices.

The basic idea here is to provide a comparison of header files of dedicated IP drivers

referencing all the used data structures, enumerators, exported functions and parameters.

These differences can help to detect parts of software to be modified when migrating

between the FW interfaces.

Table 18 summarizes basic differences concerning functions exported by drivers.

Table 18. HAL drivers’ function difference summary

Driver

STM32F0

STM32L0

stm32xxxx_hal

-

HAL_EnableDBGSleepMode

HAL_DisableDBGSleepMode

HAL_DBG_LowPowerConfig

HAL_VREFINT_Cmd

HAL_VREFINT_OutputSelect

HAL_ADC_EnableBuffer_Cmd

HAL_ADC_EnableBufferSensor_Cmd

HAL_COMP_EnableBuffer_Cmd

HAL_RC48_EnableBuffer_Cmd

stm32xxxx_hal_adc_ex

-

HAL_ADCEx_Calibration_GetValue

HAL_ADCEx_Calibration_SetValue

stm32xxxx_hal_dac_ex

HAL_DACEx_DualGetValue

HAL_DACEx_DualSetValue

HAL_DACEx_ConvCpltCallbackCh2

HAL_DACEx_ConvHalfCpltCallbackCh2

HAL_DACEx_ErrorCallbackCh2

HAL_DACEx_DMAUnderrunCallbackCh

2 DAC_DMAConvCpltCh2

DAC_DMAErrorCh2

DAC_DMAHalfConvCpltCh2

-

stm32xxxx_hal_pwr_ex

-

HAL_PWREx_EnableFastWakeUp

HAL_PWREx_DisableFastWakeUp

HAL_PWREx_EnableUltraLowPower

HAL_PWREx_DisableUltraLowPower

HAL_PWREx_EnableLowPowerRunMode

HAL_PWREx_DisableLowPowerRunMode