Main Changes

• Correction to the I2C HAL driver

Contents

HAL Drivers updates

• HAL I2C driver
  • Pin definitions for SMBUS and Fast Mode Plus now split across the two I2C IP instances (I2C1 and I2C2).

Backward compatibility

• Not applicable

Known Limitations

• None

Dependencies

• None

Notes

• None

Main Changes

• HAL and LL drivers updates to support STM32WL3Rx product line.
• Corrections/enhancements to the following HAL drivers: ADC, MRSUBG, RCC, MRSUBG Timer, GPIO, UART, USART, LCSC, PWR.

Contents

HAL Drivers updates

• HAL ADC driver
  • Improving accuracy of calibration value for VINM input (changing sign of the applied value)
  • Fix rmtoll doxygen comment in LL_ADC_GetCalibPointOffset()
  • Optimize precision of temperature sensor data conversion
• HAL RCC driver
  • Add LL RCC APIs to manage RTC clock: LL_RCC_EnableRTC(), LL_RCC_DisableRTC() and LL_RCC_IsEnabledRTC()
• HAL MRSUBG driver
  • Turned IS_169MHZ define into STM32WL33XA.
  • Added get and set API for SQI Threshold:

    __HAL_MRSUBG_SET_SQI_THRESHOLD(__THRVAL__)

  __HAL_MRSUBG_GET_SQI_THRESHOLD()

  • Fixed HAL_MRSubG_GetPALeveldBm() when PA is set in LEGACY o FIR mode
  • Added LL_MRSubG_GetPAMode() to retrieve the current PA mode
  • Fixed build errors when assertions are enabled.
• HAL MRSUBG_TIMER driver
  • Enhanced power-saving state mechanism
• HAL GPIO driver
  • Added else clause to disable pull-up/down resistors when GPIO mode is analog
• HAL PWR driver
  • Added support to STM32WL3Rx ultra deepstop low power mode.
• HAL LPUART driver
  • Solve Coverity out-of-bound memory access warning in use of LPUART_PRESCALER_TAB array
• LL ADC driver
  • Fix assert_param define
• LL LCSC driver
  • Fixed incorrect clearing of LCSC interrupt flags in LL driver
• LL USART driver
  • Solve Coverity out-of-bound memory access warning in use of USART_PRESCALER_TAB array

BSP updates

Supported Devices and boards

• NUCLEO-WL33CC1 board
• NUCLEO-WL33CC2 board
• NUCLEO-WL3RKB1 board
• NUCLEO-WL3RKB2 board

Backward compatibility

• Not applicable

Known Limitations

• None

Dependencies

• None

Notes

• None

Main Changes

Release of HAL and LL drivers for STM32WL3x devices

Contents

HAL Drivers updates

• HAL MRSUBG driver
  • Fixed wrong length of SYNC word in wM-Bus packet initialization function.
  • Fixed HAL_MRSubG_Sequencer_Microseconds return value.
  • HAL_MRSUBG_TIMER_CPU_WKUP IRQ Handler moved from MRSUBG to MRSUBG TIMER.
  • Updated names for IRQ handlers.
• HAL LPAWUR driver
  • Added MspInit and MspDeInit functions to MRSUBG, MRSUBG TIMER, and LPAWUR.
• HAL RCC driver
  • Add LL RCC APIs to manage RTC clock: LL_RCC_EnableRTC(), LL_RCC_DisableRTC() and LL_RCC_IsEnabledRTC().
  • Added support for RCC_LPUART1_CLKSOURCE_16M with a frequency of 16,000,000.

LL Drivers updates

• LL ADC driver
  • Fix rmtoll doxygen comment in LL_ADC_GetCalibPointOffset()
• LL USART driver
  • Solve Coverity out-of-bound memory access warning in use of USART_PRESCALER_TAB array.
• LL LPUART driver
  • Solve Coverity out-of-bound memory access warning in use of LPUART_PRESCALER_TAB array.

Supported Devices and boards

• NUCLEO-WL33CC1 board
• NUCLEO-WL33CC2 board

Backward compatibility

• Not applicable

Known Limitations

• None

Dependencies

• None

Notes

• None

Main Changes

Release of HAL and LL drivers for STM32WL3x devices

Improved MRSUBG LL and HAL drivers with new APIs and macros:

• __HAL_MRSUBG_GET_DATABUFFER_COUNT()

• __HAL_MRSUBG_SET_PQI_THRESHOLD(__THRVAL__)

• LL_MRSubG_GetRssiLevelOnSync(void)

• LL_MRSubG_SetRSSIFilter(uint32_t rssiFilter)

• LL_MRSubG_SetClkRecCtrl0(uint32_t clkRec)

• LL_MRSubG_SetClkRecCtrl1(uint32_t clkRec)

• LL_MRSubG_SetAFC0(uint32_t afcCfg)

• LL_MRSubG_SetAFC1(uint32_t afcCfg)

• LL_MRSubG_SetAFC2(uint32_t afcCfg)

• LL_MRSubG_SetAFC3(uint32_t afcCfg)

• HAL ADC driver
  • Fix rmtoll doxygen comment in LL_ADC_GetCalibPointOffset()
• HAL UART driver
  • Corrections in CHM/PDF rendering for HAL_UART
  • Provide accurate position in RxEventCallback when ReceptionToIdle mode is used with DMA, when UART and DMA interrupts process is delayed
  • Correct references to HAL_UARTEx_WakeupCallback and to HAL_UART_WAKEUP_CB_ID define, according to series capabilities
• LL LPUART driver
  • Solve Coverity out-of-bound memory access warning in use of LPUART_PRESCALER_TAB array
• LL USART driver
  • Solve Coverity out-of-bound memory access warning in use of USART_PRESCALER_TAB array

Check the code documentation for further details.

Contents

• Release of HAL/LL drivers

  • HAL: COMP, CORTEX, CRC, CRYP, DMA, FLASH, GPIO, I2C, IRDA, IWDG, LCD, LPAWUR, MRSUBG, PWR, RCC, RNG, RTC, SMARTCARD, SPI, TIM, UART, USART

  • LL: COMP, CRC, DMA, GPIO, I2C, LCSC, LPUART, LPAWUR, MRSUBG, PWR, RCC, RNG, RTC, SPI, TIM, USART, UTILS

Supported Devices and boards

• NUCLEO-WL33CC1 board
• NUCLEO-WL33CC2 board

Backward compatibility

• Not applicable

Known Limitations

• None

Dependencies

• None

Notes

• None

Main Changes

First Official Release of HAL and LL drivers for STM32WL33 devices

Contents

• First Official Release of HAL/LL drivers

  • HAL: COMP, CORTEX, CRC, CRYP, DMA, FLASH, GPIO, I2C, IRDA, IWDG, LCD, LPAWUR, MRSUBG, PWR, RCC, RNG, RTC, SMARTCARD, SPI, TIM, UART, USART

  • LL: COMP, CRC, DMA, GPIO, I2C, LCSC, LPUART, LPAWUR, MRSUBG, PWR, RCC, RNG, RTC, SPI, TIM, USART, UTILS

Supported Devices and boards

• NUCLEO-WL33CC board

Backward compatibility

• Not applicable

Known Limitations

• None

Dependencies

• None

Notes

• None