stm32f0xx-hal-driver/Release_Notes.html at master · STMicroelectronics/stm32f0xx-hal-driver · GitHub

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<!DOCTYPE html>
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<h1 id="release-notes-forstm32f0xx-hal-drivers"><small>Release Notes for</small><mark>STM32F0xx HAL Drivers</mark></h1>
<p>Copyright © 2016 STMicroelectronics</p>
<a href="https://www.st.com" class="logo"><img src="_htmresc/st_logo_2020.png" alt="ST logo" /></a>
</center>
<h1 id="purpose">Purpose</h1>
<p>The STM32Cube HAL and LL, an STM32 abstraction layer embedded software, ensure maximized portability across STM32 portfolio.</p>
<p>The Portable APIs layer provides a generic, multi instanced and simple set of APIs to interact with the upper layer (application, libraries and stacks). It is composed of native and extended APIs set. It is directly built around a generic architecture and allows the build-upon layers, like the middleware layer, to implement its functions without knowing in-depth the used STM32 device. This improves the library code re-usability and guarantees an easy portability on other devices and STM32 families.</p>
<p>The Low Layer (LL) drivers are part of the STM32Cube firmware HAL that provide basic set of optimized and one shot services. The Low layer drivers, contrary to the HAL ones are not Fully Portable across the STM32 families; the availability of some functions depend on the physical availability of the relative features on the product. The Low Layer (LL) drivers are designed to offer the following features:</p>
<ul>
<li>New set of inline function for direct and atomic register access</li>
<li>One-shot operations that can be used by the HAL drivers or from application level.</li>
<li>Fully Independent from HAL and can be used in standalone usage (without HAL drivers)</li>
<li>Full features coverage of the all the supported peripherals.</li>
</ul>
</div>
<div class="col-sm-12 col-lg-8">
<h1 id="update-history"><strong>Update History</strong></h1>
<div class="collapse">
<input type="checkbox" id="collapse-section1_7_8" checked aria-hidden="true"> <label for="collapse-section1_7_8" aria-hidden="true"><strong>V1.7.8 / 29-March-2024</strong></label>
<div>
<h2 id="main-changes">Main Changes</h2>
<ul>
<li>General updates to fix known defects and enhancements implementation</li>
</ul>
<h2 id="contents">Contents</h2>
<ul>
<li><strong>HAL Generic</strong> update
<ul>
<li>Add missing call to UNUSED() macro to avoid compilation warnings related to the unused arguments for the following HAL drivers: <strong>CORTEX, RCC</strong></li>
<li>HAL code quality enhancement for MISRA-C Rule-8.13 by adding const qualifiers.</li>
</ul></li>
<li><strong>HAL GPIO</strong>
<ul>
<li>Replace GPIO_Pin_x with GPIO_PIN_x to be compliant with macros definition</li>
</ul></li>
<li><strong>LL/HAL RTC_BKP</strong>
<ul>
<li>Remove macro __HAL_RTC_TAMPER_GET_IT() as it is redundant with macro __HAL_RTC_TAMPER_GET_FLAG() and create an alias into the hal_legacy.h file</li>
<li>Correct misleading note about shadow registers</li>
</ul></li>
<li><strong>LL/HAL ADC</strong>
<ul>
<li>In function LL_ADC_DeInit(), remove useless action of conversion trigger change. Moreover, this action was not compliant with ADC enable state (cf reference manual).</li>
<li>Update description of LL_ADC_REG_ReadConversionData32()</li>
</ul></li>
<li><strong>LL/HAL I2C</strong> update
<ul>
<li>Update HAL I2C driver to prefetch data before starting the transmission: implementation of errata sheet workaround I2C2-190208 : Transmission stalled after first byte</li>
<li>Update HAL I2C driver to disable all interrupts after end of transaction.</li>
<li>Update HAL_I2C_Init API to clear ADD10 bit in 7 bit addressing mode.</li>
<li>Update HAL_I2C_Mem_Write_IT API to initialize XferSize at 0.</li>
<li>Update I2C_Slave_ISR_IT, I2C_Slave_ISR_DMA and I2C_ITSlaveCplt to prevent the call of HAL_I2C_ListenCpltCallback twice.</li>
<li>Update I2C_WaitOnRXNEFlagUntilTimeout to check I2C_FLAG_AF independently from I2C_FLAG_RXNE.</li>
<li>In function HAL_I2C_IsDeviceReady, remove the unusable code.</li>
<li>Update I2C_WaitOnFlagUntilTimeout to handle error case.</li>
<li>Update HAL_I2C_Slave_Transmit to check if the received NACK is the good one.</li>
<li>Update the HAL I2C driver to implement the errata workaround "Last-received byte loss in reload mode"</li>
<li>Update LL_I2C_HandleTranfer function to prevent undefined behavior of volatile usage before updating the CR2 register.</li>
</ul></li>
<li><strong>HAL SMBUS</strong>
<ul>
<li>Update HAL SMBUS driver to prefetch data before starting the transmission: implementation of errata sheet workaround I2C2-190208 : Transmission stalled after first byte</li>
<li>Update SMBUS_ITErrorHandler to flash TXDR just in case of error</li>
</ul></li>
<li><strong>HAL UART</strong>
<ul>
<li>Update initialisation sequence for TXINV, RXINV and TXRXSWAP settings</li>
<li>Fix check on UART Rx state in HAL_UART_RegisterRxEventCallback() and HAL_UART_UnRegisterRxEventCallback() to allow user Rx Event Callback registration when a transmission is ongoing</li>
<li>Prevent RTOF flag from being cleared by a transmit process in polling mode.</li>
</ul></li>
<li><strong>HAL SPI</strong>
<ul>
<li>Update HAL_SPI_TransmitReceive API to set the bit CRCNEXT in case of one byte transaction.</li>
<li>Update IT API to enable interrupts after process unlock.</li>
</ul></li>
<li><strong>HAL I2S</strong>
<ul>
<li>Update HAL I2S driver to fix misplaced __HAL_LOCK and remove ‘go to’ instruction</li>
</ul></li>
<li><strong>LL/HAL TIM</strong>
<ul>
<li>Remove multiple volatile reads or writes in interrupt handler for better performance</li>
<li>HAL TIM driver’s operational behavior improvement</li>
<li>Improved period configuration parameter check</li>
<li>Update interrupt flag is cleared when the update event is generated by software</li>
<li>Remove unnecessary change of MOE bitfield in LL_TIM_BDTR_Init()</li>
<li>LL_TIM UM generation fix</li>
<li>User manual quality improvement</li>
<li>MISRA warning fix</li>
<li>Add LL_TIM_CC_IsEnabledPreload() function</li>
<li>Add system break interrupt handling in IRQ handler</li>
<li>Make APIs HAL_TIMEx_OCN_Stop_IT() and HAL_TIMEx_PWMN_Stop_IT() more generic</li>
<li>Assert check for the right channels</li>
<li>Improve CH4N support handling</li>
</ul></li>
<li><strong>LL UTILS</strong>
<ul>
<li>Fix ‘Ticks’ parameter’s description of LL_InitTick() function.</li>
</ul></li>
<li><strong>HAL CAN</strong>
<ul>
<li>Remove mention of ‘open-drain’ from the pin configuration paragraph in the ‘How to use’ section</li>
<li>Put __CAN_HandleTypeDef definition under a compilation condition to avoid MISRAC2012-Rule-2.4 violation</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1_7_7" aria-hidden="true"> <label for="collapse-section1_7_7" aria-hidden="true"><strong>V1.7.7 / 27-January-2023</strong></label>
<div>
<h2 id="main-changes-1">Main Changes</h2>
<ul>
<li>General updates to fix known defects and enhancements implementation.</li>
<li>HAL code quality enhancement for MISRA-C Rule-8.13 by adding const qualifiers</li>
</ul>
<h2 id="contents-1">Contents</h2>
<ul>
<li><strong>HAL GENERIC</strong> update
<ul>
<li>Allow redefinition of macro UNUSED(x).</li>
</ul></li>
<li><strong>HAL RCC</strong> update
<ul>
<li>Add a static storage class specifier in the const tables.</li>
</ul></li>
<li><strong>HAL GPIO</strong> update
<ul>
<li>Reorder EXTI configuration sequence to avoid unexpected level detection.</li>
</ul></li>
<li><strong>HAL EXTI</strong> update
<ul>
<li>Fix computation of pExtiConfig-&gt;GPIOSel in the HAL_EXTI_GetConfigLine() API.</li>
</ul></li>
<li><strong>HAL CRC</strong> update
<ul>
<li>Add filter in HAL_CRCEx_Polynomial_Set() to exclude even polynomials.</li>
<li>Update HAL_CRC_DeInit implementation to avoid overflow issues in CRC_IDR_IDR.</li>
</ul></li>
<li><strong>HAL ADC</strong> update
<ul>
<li>Remove multiple volatile reads or writes in interrupt handler for better performance.</li>
</ul></li>
<li><strong>LL/HAL TIM</strong> update
<ul>
<li>Manage configuration of the Capture/compare DMA request source
<ul>
<li>Add related new exported constants (TIM_CCDMAREQUEST_CC, TIM_CCDMAREQUEST_UPDATE).</li>
<li>Create a new macro __HAL_TIM_SELECT_CCDMAREQUEST() allowing to program the TIMx_CR2.CCDS bitfield.</li>
</ul></li>
<li>Update __LL_TIM_CALC_PSC() macro to round up the evaluated value when the fractional part of the division is greater than 0.5.</li>
</ul></li>
<li><strong>HAL RTC_BKP</strong> update
<ul>
<li>Move constants RTC_IT_TAMP from hal_rtc.h to hal_rtc_ex.h.</li>
<li>Use bits definitions from CMSIS Device header file instead of hard-coded values.</li>
<li>Add new macro assert_param(IS_RTC_TAMPER_FILTER_CONFIG_CORRECT(sTamper-&gt;Filter, sTamper-&gt;Trigger)) to check tamper filtering is disabled in case tamper events are triggered on signal edges.</li>
<li>Rework functions HAL_RTCEx_SetTamper() and HAL_RTCEx_SetTamper_IT() to:
<ul>
<li>Write in TAFCR register in one single access instead of two.</li>
<li>Avoid modifying user structure sTamper.</li>
</ul></li>
<li>Add a check on the RTC calendar initialization before entering in initialization mode.</li>
</ul></li>
<li><strong>HAL IRDA</strong> update
<ul>
<li>Improve header description of IRDA_WaitOnFlagUntilTimeout() function.</li>
<li>Add a check on the IRDA parity before enabling the parity error interrupt.</li>
<li>Add const qualifier for read only pointers.</li>
<li>Fix wrong cast when computing the USARTDIV value in IRDA_SetConfig().</li>
</ul></li>
<li><strong>HAL UART</strong> update
<ul>
<li>Improve header description of UART_WaitOnFlagUntilTimeout() function.</li>
<li>Add a check on the UART parity before enabling the parity error interruption.</li>
<li>Add const qualifier for read only pointers.</li>
<li>Fix wrong cast when computing the USARTDIV value in UART_SetConfig().</li>
<li>Correct the way transmit data flush request is managed.</li>
<li>Removal of HAL_LOCK/HAL_UNLOCK calls in HAL UART Tx and Rx APIs</li>
<li>Disable the Receiver Timeout Interrupt when data reception is completed.</li>
<li>Rework of UART_WaitOnFlagUntilTimeout() API to avoid being stuck forever when UART overrun error occurs and to enhance behavior.</li>
</ul></li>
<li><strong>LL/HAL USART</strong> update
<ul>
<li>Improve header description of USART_WaitOnFlagUntilTimeout() function.</li>
<li>Add a check on the USART parity before enabling the parity error interrupt.</li>
<li>Fix compilation warnings generated with ARMV6 compiler.</li>
</ul></li>
<li><strong>HAL SMARTCARD</strong> update
<ul>
<li>Improve header description of SMARTCARD_WaitOnFlagUntilTimeout() function.</li>
<li>Add const qualifier for read only pointers.</li>
<li>Fix wrong cast when computing the USARTDIV value in SMARTCARD_SetConfig().</li>
</ul></li>
<li><strong>LL/HAL I2C</strong> update
<ul>
<li>Improve header description of I2C_WaitOnFlagUntilTimeout() function.</li>
<li>Rename I2C_IsAcknowledgeFailed() I2C_IsErrorOccurred() and correct the way errors are checked and reported when they occur in polling mode.
<ul>
<li>Update to fix issue detected due to low system frequency execution (HSI).</li>
<li>Declare an internal macro link to DMA macro to check remaining data: I2C_GET_DMA_REMAIN_DATA</li>
</ul></li>
<li>Clear the ADDRF flag only when direction is confirmed as changed, to prevent that the ADDRF flag is cleared too early when the restart is received.</li>
<li>Fix timeout issue using HAL MEM interface through FreeRTOS.</li>
<li>I2C_IsErrorOccurred does not return error if timeout is detected.</li>
<li>Update [HAL_I2C_IsDeviceReady] API to support 10_bit addressing mode.</li>
</ul></li>
<li><strong>HAL SMBUS</strong> update
<ul>
<li>Add flushing of TX register to fix the issue of mismatching data received by master in case of data size to be transmitted by the slave is greater than the data size to be received by the master.</li>
</ul></li>
<li><strong>HAL SPI</strong> update
<ul>
<li>Fix driver to don’t update state in case of error. (HAL_SPI_STATE_READY will be set only in case of HAL_TIMEOUT).</li>
</ul></li>
<li><strong>HAL CAN</strong> update
<ul>
<li>Removal of never reached code.</li>
<li>Improve protection against bad inputs.</li>
</ul></li>
<li><strong>HAL CEC</strong> update
<ul>
<li>Remove multiple volatile reads or writes in interrupt handler for better performance.</li>
</ul></li>
<li><strong>USB_FS_HAL</strong> update
<ul>
<li>PCD: add supporting multi packets transfer on Interrupt endpoint.</li>
<li>Set DCD timeout to a minimum of 300ms before starting BCD primary detection process.</li>
<li>HAL: PCD: software correction added to avoid unexpected STALL condition during EP0 multi packet OUT transfer.</li>
<li>hal_pcd.h: add a mask for USB RX bytes count.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1_7_6" aria-hidden="true"> <label for="collapse-section1_7_6" aria-hidden="true"><strong>V1.7.6 / 23-July-2021</strong></label>
<div>
<h2 id="main-changes-2">Main Changes</h2>
<ul>
<li>General updates to fix known defects and enhancements implementation.</li>
</ul>
<h2 id="contents-2">Contents</h2>
<ul>
<li><strong>HAL GPIO</strong> driver
<ul>
<li>Update HAL_GPIO_Init() API to avoid the configuration of PUPDR register when Analog mode is selected.</li>
</ul></li>
<li><strong>HAL EXTI</strong> update
<ul>
<li>Update HAL_EXTI_GetConfigLine() API to set default configuration value of Trigger and GPIOSel before checking each corresponding registers.</li>
</ul></li>
<li><strong>LL/HAL ADC</strong> update
<ul>
<li>Update LL_ADC_DMA_GetRegAddr() API to prevent unused argument compilation warning.</li>
<li>Update HAL timeout mechanism to avoid false timeout detection in case of preemption.</li>
</ul></li>
<li><strong>LL/HAL DAC</strong> update
<ul>
<li>Remove ‘register’ storage class specifier from LL DAC driver.</li>
</ul></li>
<li><strong>LL/HAL TIM</strong> update
<ul>
<li>Corrected reversed description of TIM_LL_EC_ONEPULSEMODE One Pulse Mode.</li>
<li>Update HAL_TIMEx_OnePulseN_Start and HAL_TIMEx_OnePulseN_Stop (pooling and IT mode) to take into consideration all OutputChannel parameters.</li>
<li>Update input capture measurement in DMA mode to avoid zero return values at high frequencies.</li>
</ul></li>
<li><strong>HAL I2C</strong> update
<ul>
<li>Updated I2C_IsAcknowledgeFailed() API to avoid I2C in busy state if NACK received after transmitting register address.</li>
</ul></li>
<li><strong>HAL UART</strong> update
<ul>
<li>Fix erroneous UART’s handle state in case of error returned after DMA reception start within UART_Start_Receive_DMA().</li>
<li>Correction on UART ReceptionType management in case of ReceptionToIdle API are called from RxEvent callback</li>
<li>Handling of UART concurrent register access in case of race condition between Tx and Rx transfers (HAL UART and LL LPUART)</li>
</ul></li>
<li><strong>HAL CAN</strong> update
<ul>
<li>Update HAL_CAN_Init() API to be aligned with STM32F3 documentation and to avoid timeout error:
<ul>
<li>Update CAN Initialization sequence to set “request initialization” bit before exit from sleep mode.</li>
</ul></li>
</ul></li>
<li><strong>LL FMC</strong> update
<ul>
<li>Fix compilation warning with gcc -Wpedantic compiler option.</li>
</ul></li>
<li><strong>HAL SPI</strong> update
<ul>
<li>Updated to fix MISRA-C 2012 Rule-13.2.</li>
<li>Updated to set the FRXTH bit for 8bit data in LL_SPI_Init() API.</li>
<li>Update LL_SPI_TransmitData8() API to avoid casting the result to 8 bits.</li>
</ul></li>
<li><strong>HAL I2S</strong> update
<ul>
<li>Update I2SEx APIs to correctly support circular transfers:
<ul>
<li>Update I2SEx_TxRxDMACplt() API to manage DMA circular mode.</li>
<li>Update HAL_I2SEx_TransmitReceive_DMA() to enhance HAL I2S driver robustness:
<ul>
<li>Remove DMA TX transfer complete and half complete callback initialization.</li>
</ul></li>
</ul></li>
</ul></li>
<li><strong>HAL IWDG</strong> update
<ul>
<li>Updated HAL_IWDG_Init() API in order to fix HAL_GetTick() timeout vulnerability issue.</li>
</ul></li>
<li><strong>HAL RTC</strong> update
<ul>
<li>Update __HAL_RTC_…(__HANDLE__, …) macros to access registers through (__HANDLE__)-&gt;Instance pointer and avoid “unused variable” warnings.</li>
<li>Correct month management in IS_LL_RTC_MONTH() macro</li>
</ul></li>
<li><strong>LL USART</strong> update
<ul>
<li>Remove useless check on maximum BRR value by removing IS_LL_USART_BRR_MAX() macro.</li>
<li>Handling of UART concurrent register access in case of race condition between Tx and Rx transfers (HAL UART and LL LPUART)</li>
</ul></li>
<li><strong>HAL NAND</strong> update
<ul>
<li>Update implementation of “HAL_NAND_Read_SpareArea_16b” and “HAL_NAND_Write_SpareArea_16b” to fix an issue with the spare area Column address calculation</li>
<li>Update implementation of “HAL_NAND_Write_Page_16b” and “HAL_NAND_Read_Page_16b” APIs implementation to fix an issue with the page calculation of 8 bits memories</li>
</ul></li>
<li><strong>HAL USB_FS</strong> update
<ul>
<li>HAL PCD: add fix transfer complete for IN Interrupt transaction in single buffer mode</li>
<li>Race condition in USB PCD control endpoint receive ISR.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1_7_5" aria-hidden="true"> <label for="collapse-section1_7_5" aria-hidden="true"><strong>V1.7.5 / 06-November-2020</strong></label>
<div>
<h2 id="main-changes-3">Main Changes</h2>
<ul>
<li>Patch release to fix known defects and enhancements implementation.</li>
<li>Remove “register” keyword to be compliant with new C++ rules:
<ul>
<li>The register storage class specifier was deprecated in C++11 and removed in C++17</li>
</ul></li>
<li><strong>HAL</strong> driver update
<ul>
<li>Add new defines for ARM compiler V6:
<ul>
<li>__weak</li>
<li>__packed</li>
<li>__NOINLINE</li>
</ul></li>
<li>Remove compile switch “USE_HAL_LEGACY” on #include “Legacy/stm32_hal_legacy.h”</li>
<li>Update HAL TimeBase TIM, RTC alarm and RTC WakeUp templates for more robustness
<ul>
<li>Update HAL_InitTick() API to properly store the priority when using the non-default time base.</li>
</ul></li>
</ul></li>
<li><strong>HAL/LL ADC</strong> update
<ul>
<li>Update HAL_ADC_Stop_DMA() API to check if DMA state is Busy before calling HAL_DMA_Abort() API to avoid DMA internal error.</li>
<li>Update LL_ADC_REG_Init() API to avoid enabling continuous mode and discontinuous mode simultaneously.</li>
</ul></li>
<li><strong>HAL CEC</strong> update
<ul>
<li>Update HAL_CEC_IRQHandler() API to avoid appending an extra byte to the end of message.</li>
</ul></li>
<li><strong>HAL TSC</strong> update
<ul>
<li>Update the HAL_TSC_Init() API to add new check condition on “PulseGeneratorPrescaler” Parameter</li>
</ul></li>
<li><strong>HAL FLASH</strong> update
<ul>
<li>Update FLASH_OB_DisableWRP() API to remove write protection on selected sectors instead of all sectors.</li>
</ul></li>
<li><strong>HAL/LL IWDG</strong> update
<ul>
<li>Update HAL_IWDG_DEFAULT_TIMEOUT define value to consider LSI value instead of hardcoded value.</li>
</ul></li>
<li><strong>HAL RTC</strong> update
<ul>
<li>Update to support Daylight Saving Time (DST) feature:
<ul>
<li>Subtract or add one hour to the calendar can now be handled outside HAL_RTC_SetTime() thanks to new APIs.
<ul>
<li>HAL_RTC_DST_Add1Hour() API to add one hour to the calendar</li>
<li>HAL_RTC_DST_Sub1Hour() API to subtract one hour from the calendar</li>
<li>HAL_RTC_DST_SetStoreOperation() API to set the store operation bit</li>
<li>HAL_RTC_DST_ClearStoreOperation() API to clear the store operation bit</li>
<li>HAL_RTC_DST_ReadStoreOperation() API to read the store operation bit</li>
</ul></li>
<li>DayLightSaving and StoreOperation interfaces from RTC_TimeTypeDef type are now deprecated.</li>
</ul></li>
</ul></li>
<li><strong>HAL/LL SPI</strong> update
<ul>
<li>Update HAL_SPI_TransmitReceive() API to manage the case of unaligned data</li>
<li>Update SPI_DMAReceiveCplt() API to handle efficiently the repeated transfers.
<ul>
<li>Disable TX DMA request only in bidirectional receive mode</li>
</ul></li>
</ul></li>
<li><strong>HAL/LL TIM</strong> update
<ul>
<li>Update Encoder input interface to don’t allow both input polarity configuration
<ul>
<li>Replace IS_TIM_IC_POLARITY() macro by IS_TIM_ENCODERINPUT_POLARITY() macro.</li>
</ul></li>
<li>Update to allow multiple DMA request with different channels in parallel:
<ul>
<li>Implement DMA burst state management mechanism</li>
<li>Implement TIM channel state management mechanism</li>
</ul></li>
<li>Correct inverted values of LL_TIM_COUNTERMODE_CENTER_DOWN and LL_TIM_COUNTERMODE_CENTER_UP</li>
<li>Update LL_TIM_GetCounterMode() API to return right counter mode.</li>
</ul></li>
<li><strong>HAL/LL SMARTCARD</strong> update
<ul>
<li>Update smartcard transmit processes to be able to handle data retransmission when NACK is received in smartcard T=0</li>
</ul></li>
<li><strong>HAL/LL UART</strong> update
<ul>
<li>Update to enhance reception to idle services (ReceptionToIdle):
<ul>
<li>Add a new field HAL_UART_RxTypeTypeDef structure to the UART_HandleTypeDef structure to identify the type of ongoing Reception</li>
<li>Add UART Reception Event Callback registration features</li>
<li>Add a set of APIs specific to Reception to Idle transfer in different mode
<ul>
<li>Add HAL_UARTEx_ReceiveToIdle API to receive an amount of data in blocking mode till either the expected number of data is received or an IDLE event occurs.</li>
<li>Add HAL_UARTEx_ReceiveToIdle_IT() API to receive an amount of data in interrupt mode till either the expected number of data is received or an IDLE event occurs.</li>
<li>Add HAL_UARTEx_ReceiveToIdle_DMA() API to receive an amount of data in DMA mode till either the expected number of data is received or an IDLE event occurs.</li>
</ul></li>
<li>Update HAL_UART_Receive(), HAL_UART_Receive_IT() and HAL_UART_Receive_DMA() APIs to support the new enhancement of ReceptionToIdle</li>
</ul></li>
<li>Update HAL_UART_IRQHandler() to handle receiver timeout interruption</li>
<li>Update UART receive processes (IT &amp; DMA) to handle the UART receive timeout interruption</li>
</ul></li>
<li><strong>HAL/LL USART</strong> update
<ul>
<li>Add RTO (Receiver Time Out) support to USART HAL flags and IT management
<ul>
<li>Add HAL_USART_ERROR_RTO define of Receiver Timeout error to the USART Error Definition section</li>
<li>Add USART_FLAG_RTOF define of Receiver Timeout flag to the USART Flags section</li>
<li>Add USART_CLEAR_RTOF define of Receiver Timeout clear flag to the USART Clear Flags section</li>
<li>Update HAL_USART_IRQHandler to add support to the Receiver Timeout Interruption</li>
</ul></li>
</ul></li>
<li><strong>LL UTILS</strong> update
<ul>
<li>UTILS_SetFlashLatency() API renamed to LL_SetFlashLatency() and set exportable.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1_7_4" aria-hidden="true"> <label for="collapse-section1_7_4" aria-hidden="true"><strong>V1.7.4 / 24-July-2020</strong></label>
<div>
<h2 id="main-changes-4">Main Changes</h2>
<ul>
<li>Maintenance release to fix known defects and enhancements implementation</li>
<li><strong>HAL Drivers changes</strong>
<ul>
<li><strong>HAL/LL GPIO</strong> update
<ul>
<li>Update GPIO initialization sequence to avoid unwanted pulse on GPIO Pin’s</li>
<li>Update HAL_GPIO_TogglePin() API to allow the toggling of many pins</li>
</ul></li>
<li><strong>HAL/LL I2C</strong> update
<ul>
<li>Update HAL_I2C_ER_IRQHandler() API to fix acknowledge failure issue with I2C memory IT processes
<ul>
<li>Add stop condition generation when NACK occurs.</li>
</ul></li>
<li>Update I2C_DMAXferCplt(), I2C_DMAError() and I2C_DMAAbort() APIs to fix hardfault issue when hdmatx and hdmarx parameters in i2c handle aren’t initialized (NULL pointer).
<ul>
<li>Add additional check on hi2c-&gt;hdmtx and hi2c-&gt;hdmarx before resetting DMA Tx/Rx complete callbacks</li>
</ul></li>
<li>Update Sequential transfer APIs to adjust xfermode condition.
<ul>
<li>Replace hi2c-&gt;XferCount &lt; MAX_NBYTE_SIZE by hi2c-&gt;XferCount &lt;= MAX_NBYTE_SIZE which corresponds to a case without reload</li>
</ul></li>
</ul></li>
<li><strong>HAL/LL USB</strong> driver
<ul>
<li>Bug fix: USB_ReadPMA() and USB_WritePMA() by ensuring 16-bits access to USB PMA memory</li>
<li>Bug fix: correct USB RX count calculation</li>
<li>Fix USB Bulk transfer double buffer mode</li>
<li>Remove register keyword from USB defined macros as no more supported by C++ compiler</li>
<li>Minor rework on USBD_Start() and USBD_Stop() APIs: stopping device will be handled by HAL_PCD_DeInit() API.</li>
<li>Remove non used API for USB device mode.</li>
</ul></li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1_7_3" aria-hidden="true"> <label for="collapse-section1_7_3" aria-hidden="true"><strong>V1.7.3 / 12-September-2019</strong></label>
<div>
<h2 id="main-changes-5">Main Changes</h2>
<ul>
<li>General updates to fix known defects and enhancements implementation</li>
<li>Add support of HAL callback registration feature</li>
<li>Add new <strong>HAL EXTI</strong> driver</li>
<li><strong>The following changes done on the HAL drivers require an update on the application code based on older HAL versions</strong>
<ul>
<li><strong>HAL/LL Generic</strong> update
<ul>
<li>Add support of <strong>HAL callback registration</strong> feature
<ul>
<li>The feature disabled by default is available for the following HAL drivers:
<ul>
<li><strong>ADC, CAN, COMP, CEC, DAC, I2C, SMBUS, UART, USART, WWDG, RTC, SPI, SMARTCARD, IrDA, I2S, TIM, TSC and PCD</strong></li>
</ul></li>
<li>The feature may be enabled individually per HAL PPP driver by setting the corresponding definition USE_HAL_PPP_REGISTER_CALLBACKS to 1U in stm32f0xx_hal_conf.h project configuration file (template file stm32f0xx_hal_conf_template.h available from Drivers/STM32F0xx_HAL_Driver/Inc)</li>
<li>Once enabled , the user application may resort to HAL_PPP_RegisterCallback() to register specific callback function(s) and unregister it(them) with HAL_PPP_UnRegisterCallback()</li>
</ul></li>
</ul></li>
</ul></li>
<li><strong>HAL/LL Generic</strong> update
<ul>
<li>Update HAL driver to allow user to change systick period to 1ms, 10 ms or 100 ms :
<ul>
<li>Add the following API’s :
<ul>
<li>HAL_GetTickPrio(): Returns a tick priority.</li>
<li>HAL_SetTickFreq(): Sets new tick frequency.</li>
<li>HAL_GetTickFreq(): Returns tick frequency.</li>
</ul></li>
<li>Add HAL_TickFreqTypeDef enumeration for the different Tick Frequencies: 10 Hz, 100 Hz and 1KHz (default).</li>
</ul></li>
<li>Add UNUSED() macro implementation to avoid GCC warning
<ul>
<li>The warning is detected when the UNUSED() macro is called from C++ file</li>
</ul></li>
<li>General updates to fix MISRA 2012 compilation errors
<ul>
<li>HAL_IS_BIT_SET()/HAL_IS_BIT_CLR() macros implementation update</li>
<li>stdio.h include updated with stddef.h</li>
<li>Update assert_failed() API prototype to use pointer on uint8_t instead of char</li>
</ul></li>
</ul></li>
<li><strong>HAL CRC</strong> update
<ul>
<li>Remove extended initialization HAL_CRCEx_Init() API
<ul>
<li>HAL_CRC_Init() call HAL_CRCEx_Polynomial_Set() to initialize the CRC polynomial</li>
</ul></li>
<li>Remove extra call to HAL_LOCK/HAL_UNLOCK from the following APIs:
<ul>
<li>HAL_CRC_Accumulate()</li>
<li>HAL_CRC_Calculate()</li>
</ul></li>
</ul></li>
<li><strong>HAL DAC</strong> update
<ul>
<li>Update to check on DAC_CHANNEL2_SUPPORT instead of device part number</li>
</ul></li>
<li><strong>HAL DMA</strong> update
<ul>
<li>Add clean of callbacks in HAL_DMA_DeInit() API</li>
<li>Update HAL_DMA_Abort() API to
<ul>
<li>Be able to return HAL_ERROR when DMA is already busy</li>
</ul></li>
</ul></li>
<li><strong>HAL/LL RTC</strong> update
<ul>
<li>HAL/LL drivers optimization
<ul>
<li>HAL driver: remove unused variables to fix CodeSonar warnings</li>
<li>LL driver: getter APIs optimization</li>
</ul></li>
</ul></li>
<li><strong>HAL GPIO</strong> update
<ul>
<li>HAL_GPIO_TogglePin() API implementation update: to improve robustness</li>
<li>HAL_GPIO_DeInit() API update to ensure clear all GPIO EXTI pending interrupts.</li>
</ul></li>
<li><strong>HAL CEC</strong> update
<ul>
<li>update CEC states definition</li>
</ul></li>
<li><strong>HAL COMP</strong> update
<ul>
<li>Add HAL_COMP_GetError() API to return the COMP error code</li>
</ul></li>
<li><strong>HAL I2C</strong> update
<ul>
<li>I2C API changes for MISRA-C 2012 compliance:
<ul>
<li>Rename HAL_I2C_Master_Sequential_Transmit_IT() to HAL_I2C_Master_Seq_Transmit_IT()</li>
<li>Rename HAL_I2C_Master_Sequentiel_Receive_IT() to HAL_I2C_Master_Seq_Receive_IT()</li>
<li>Rename HAL_I2C_Slave_Sequentiel_Transmit_IT() to HAL_I2C_Slave_Seq_Transmit_IT()</li>
<li>Rename HAL_I2C_Slave_Sequentiel_Receive_DMA() to HAL_I2C_Slave_Seq_Receive_DMA()</li>
</ul></li>
<li>Add support of I2C repeated start feature in DMA Mode With the following new APIs
<ul>
<li>HAL_I2C_Master_Seq_Transmit_DMA()</li>
<li>HAL_I2C_Master_Seq_Receive_DMA()</li>
<li>HAL_I2C_Slave_Seq_Transmit_DMA()</li>
<li>HAL_I2C_Slave_Seq_Receive_DMA()</li>
</ul></li>
<li>Add new I2C transfer options to easy manage the sequential transfers
<ul>
<li>I2C_OTHER_FRAME</li>
<li>I2C_OTHER_AND_LAST_FRAME</li>
</ul></li>
<li>Fix I2C send break issue in IT processes
<ul>
<li>Add additional check on hi2c-&gt;hdmatx and hi2c-&gt;hdmarx to avoid the DMA request enable when ITmode is used.</li>
</ul></li>
</ul></li>
<li><strong>HAL SPI</strong> update
<ul>
<li>General update to enhance robustness for HAL SPI driver</li>
</ul></li>
<li><strong>HAL I2S</strong> update
<ul>
<li>General update to enhance robustness for HAL I2S driver</li>
</ul></li>
<li><strong>HAL SMBUS</strong> update
<ul>
<li>General update to enhance robustness for HAL SMBUS driver</li>
</ul></li>
<li><strong>HAL TIM</strong> update
<ul>
<li>Move the following TIM structures from stm32f0xx_hal_tim_ex.h into stm32f0xx_hal_tim.h
<ul>
<li>TIM_MasterConfigTypeDef()</li>
<li>TIM_BreakDeadTimeConfigTypeDef()</li>
</ul></li>
<li>TIM API changes for MISRA-C 2012 compliance:
<ul>
<li>Rename HAL_TIM_SlaveConfigSynchronization to HAL_TIM_SlaveConfigSynchro</li>
<li>Rename HAL_TIM_SlaveConfigSynchronization_IT to HAL_TIM_SlaveConfigSynchro_IT</li>
<li>Rename HAL_TIMEx_ConfigCommutationEvent to HAL_TIMEx_ConfigCommutEvent</li>
<li>Rename HAL_TIMEx_ConfigCommutationEvent_IT to HAL_TIMEx_ConfigCommutEvent_IT</li>
<li>Rename HAL_TIMEx_ConfigCommutationEvent_DMA to HAL_TIMEx_ConfigCommutEvent_DMA</li>
<li>Rename HAL_TIMEx_CommutationCallback to HAL_TIMEx_CommutCallback</li>
</ul></li>
<li>Add a call to HAL_DMA_Abort_IT from HAL_TIM_XXX_Stop_DMA</li>
</ul></li>
<li><strong>HAL TSC</strong> update
<ul>
<li>HAL_TSC_IODischarge() API: update choice parameter to be on FunctionalState instead of uint32_t.</li>
<li>Add new field ErrorCode in TSC_HandleTypeDef structure</li>
<li>HAL_TSC_Init() API add new assert_param() on ChannelIOs, ShieldIOs and SamplingIOs fields.</li>
</ul></li>
<li><strong>HAL UART</strong> update
<ul>
<li>Update to manage UART LIN and UART wakeUp features in stm32f0xx_hal_uart.c/.h instead of stm32f0_hal_uart_ex.c/.h</li>
<li>General update to enhance robustness for HAL UART driver</li>
<li>Major Update to improve performance in polling/interrupt mode to reach max frequency:
<ul>
<li>Polling mode :
<ul>
<li>Use API data pointer instead of UART handle data pointer.</li>
</ul></li>
<li>Interrupt mode
<ul>
<li>Minimize access on UART registers.</li>
<li>Split the UART modes into dedicated static functions to minimize checking statements under HAL_IRQHandler():
<ul>
<li>8 bit/ 16 bits data formats</li>
</ul></li>
</ul></li>
<li>All modes:
<ul>
<li>Update Timeout management to check on global process.</li>
<li>Update Error code management in all processes.</li>
</ul></li>
</ul></li>
</ul></li>
<li><strong>HAL USART</strong> update
<ul>
<li>General update to enhance robustness for HAL USART driver</li>
<li>Major Update to improve performance in polling/interrupt mode to reach max frequency:
<ul>
<li>Polling mode :
<ul>
<li>Use API data pointer instead of USART handle data pointer.</li>
<li>Update HAL USART Transmit/Receive processes to support Word Length 9 Bits with/No parity transfer</li>
</ul></li>
<li>Interrupt mode
<ul>
<li>Minimize access on USART registers.</li>
<li>Split the USART modes into dedicated static functions to minimize checking statements under HAL_IRQHandler():
<ul>
<li>8 bit/ 16 bits data formats</li>
</ul></li>
</ul></li>
<li>All modes:
<ul>
<li>Update Timeout management to check on global process.</li>
<li>Update Error code management in all processes.</li>
</ul></li>
</ul></li>
</ul></li>
<li><strong>HAL SMARTCARD</strong> update
<ul>
<li>General update to enhance robustness for HAL SMARTCARD driver</li>
<li>Major Update to improve performance in polling/interrupt mode to reach max frequency:
<ul>
<li>Polling mode :
<ul>
<li>Use API data pointer instead of SMARTCARD handle data pointer.</li>
<li>Update HAL SMARTCARD Transmit/Receive processes to support Word Length 9 Bits with/No parity transfer</li>
</ul></li>
<li>Interrupt mode
<ul>
<li>Minimize access on SMARTCARD registers.</li>
<li>Split the SMARTCARD modes into dedicated static functions to minimize checking statements under HAL_IRQHandler():
<ul>
<li>8 bit/ 16 bits data formats</li>
</ul></li>
</ul></li>
<li>All modes:
<ul>
<li>Update Timeout management to check on global process.</li>
<li>Update Error code management in all processes.</li>
</ul></li>
</ul></li>
</ul></li>
<li><strong>HAL IrDA</strong> update
<ul>
<li>General update to enhance robustness for HAL IrDA driver</li>
<li>Update HAL IrDA Transmit/Receive processes to support Word Length 9 Bits with/No parity transfer</li>
<li>Remove unused IRDA_ControlTypeDef() enumeration</li>
</ul></li>
<li><strong>LL/HAL RCC</strong> update
<ul>
<li>Add new LL/HAL macros
<ul>
<li>LL_RCC_PLL_SetMainSource() allowing to configure PLL main clock source</li>
<li>__HAL_RCC_GET_RTC_SOURCE() allowing to get the RTC clock source</li>
</ul></li>
<li>Update HAL_RCC_ClockConfig() API to:
<ul>
<li>update to use __HAL_FLASH_GET_LATENCY() flash macro instead of using direct register access to LATENCY bits in FLASH ACR register.</li>
</ul></li>
<li>Update HAL_RCC_DeInit() and LL_RCC_DeInit() APIs to
<ul>
<li>Add checks for HSI and PLL ready before modifying RCC CFGR registers</li>
<li>Clear all interrupt flags</li>
</ul></li>
</ul></li>
<li><strong>HAL/LL USB</strong> update
<ul>
<li>Add stm32f0xx_ll_usb.c/h driver</li>
<li>cleanup reference to low speed in device mode</li>
<li>Software Quality improvement with a fix of CodeSonar warning on PCD_Port_IRQHandler() interrupt handlers</li>
<li>Remove wrongly coded PCD_GET6_DB_DIR macro</li>
<li>Improve software quality to be MISRA-C 2012 and CodeSonar compliant</li>
<li>STM32F0 Fix USB Exti Wakeup signal by removing non used macro</li>
<li>Ensure 16bits access to USB PMA</li>
<li>Make sure to set correct count for receive fifo</li>
<li>Rework USB BCD driver and fix required timing to initiate primary and secondary detection</li>
<li>Prevent clearing CTR_RX and CTR_TX flags when setting the EP type</li>
<li>Add error check during USB init</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1_7_2" aria-hidden="true"> <label for="collapse-section1_7_2" aria-hidden="true"><strong>V1.7.2 / 09-May-2019</strong></label>
<div>
<h2 id="main-changes-6">Main Changes</h2>
<ul>
<li>Maintenance release to fix known defects and enhancements implementation</li>
<li><strong>HAL Drivers changes</strong></li>
<li><strong>HAL PCD</strong> update
<ul>
<li>Update Memory-mapped peripheral registers definition to be volatile to avoid unwanted optimization with GCC compiler.</li>
</ul></li>
<li><strong>LL TIM</strong> Update
<ul>
<li>Update Memory-mapped peripheral registers definition to be volatile to avoid unwanted optimization with GCC compiler.</li>
</ul></li>
<li><strong>LL DAC</strong> Update
<ul>
<li>Update Memory-mapped peripheral registers definition to be volatile to avoid unwanted optimization with GCC compiler.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1_7_1" aria-hidden="true"> <label for="collapse-section1_7_1" aria-hidden="true"><strong>V1.7.1 / 02-April-2019</strong></label>
<div>
<h2 id="main-changes-7">Main Changes</h2>
<ul>
<li><strong>Maintenance release to fix known defects and enhancements implementation</strong></li>
<li><strong>The following changes done on the HAL drivers require an update on the application code based on older HAL versions</strong>
<ul>
<li><strong>Rework of HAL CAN driver (compatibility break)</strong>
<ul>
<li>A new HAL CAN driver has been redesigned with new APIs, to bypass limitations on CAN Tx/Rx FIFO management present with previous HAL CAN driver version.</li>
<li>The new HAL CAN driver is the recommended version. It is located as usual in Drivers/STM32F0xx_HAL_Driver/Src and Drivers/STM32f0xx_HAL_Driver/Inc folders. It can be enabled through switch HAL_CAN_MODULE_ENABLED in stm32f0xx_hal_conf.h</li>
<li>The legacy HAL CAN driver is also present in the release in Drivers/STM32F0xx_HAL_Driver/Src/Legacy and Drivers/STM32F0xx_HAL_Driver/Inc/Legacy folders for software compatibility reasons. Its usage is not recommended as deprecated. It can however be enabled through switch HAL_CAN_LEGACY_MODULE_ENABLED in stm32f0xx_hal_conf.h</li>
</ul></li>
</ul></li>
<li><strong>HAL Drivers changes</strong></li>
<li><strong>HAL CAN</strong> update
<ul>
<li>Fields of CAN_InitTypeDef structure are reworked:
<ul>
<li>SJW to SyncJumpWidth, BS1 to TimeSeg1, BS2 to TimeSeg2, TTCM to TimeTriggeredMode, ABOM to AutoBusOff, AWUM to AutoWakeUp, NART to AutoRetransmission (inversed), RFLM to ReceiveFifoLocked and TXFP to TransmitFifoPriority</li>
</ul></li>
<li>HAL_CAN_Init() is split into both HAL_CAN_Init() and HAL_CAN_Start() APIs</li>
<li>HAL_CAN_Transmit() is replaced by HAL_CAN_AddTxMessage() to place Tx Request, then HAL_CAN_GetTxMailboxesFreeLevel() for polling until completion.</li>
<li>HAL_CAN_Transmit_IT() is replaced by HAL_CAN_ActivateNotification() to enable transmit IT, then HAL_CAN_AddTxMessage() for place Tx request.</li>
<li>HAL_CAN_Receive() is replaced by HAL_CAN_GetRxFifoFillLevel() for polling until reception, then HAL_CAN_GetRxMessage() to get Rx message.</li>
<li>HAL_CAN_Receive_IT() is replaced by HAL_CAN_ActivateNotification() to enable receive IT, then HAL_CAN_GetRxMessage() in the receive callback to get Rx message</li>
<li>HAL_CAN_Slepp() is renamed as HAL_CAN_RequestSleep()</li>
<li>HAL_CAN_TxCpltCallback() is split into HAL_CAN_TxMailbox0CompleteCallback(), HAL_CAN_TxMailbox1CompleteCallback() and HAL_CAN_TxMailbox2CompleteCallback().</li>
<li>HAL_CAN_RxCpltCallback is split into HAL_CAN_RxFifo0MsgPendingCallback() and HAL_CAN_RxFifo1MsgPendingCallback().</li>
<li>More complete “How to use the new driver” is detailed in the driver header section itself.</li>
</ul></li>
<li><strong>HAL FLASH</strong> update
<ul>
<li>Update the FLASH_OB_GetRDP() API to return the correct RDP level</li>
</ul></li>
<li><strong>HAL PCD</strong> update
<ul>
<li>PCD_SET_EPTYPE() macro update to prevent clearing USB_EP_CTR_TX and USB_EP_CTR_RX flags.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1_7_0" aria-hidden="true"> <label for="collapse-section1_7_0" aria-hidden="true"><strong>V1.7.0 / 25-August-2017</strong></label>
<div>
<h2 id="main-changes-8">Main Changes</h2>
<ul>
<li><strong>Maintenance release to fix known defects and enhancements implementation</strong></li>
<li><strong>Generic drivers changes</strong></li>
<li>MISRA C 2004 rule 11.4 (A cast should not be performed between a pointer to object type and a different pointer to object type).</li>
<li>MISRA C 2004 rule 12.4 (The right-hand operand of a logical or I I operator shall not contain side effects).</li>
<li>Minor improvement of Doxygen Tags for CHM UM generation.</li>
<li><strong>HAL Drivers changes</strong></li>
<li><strong>HAL GPIO</strong>
<ul>
<li>Add definition of GPIO_AF0_TIM3 for STM32F030x6 and STM32F030x8 devices.</li>
</ul></li>
<li><strong>HAL I2C</strong>
<ul>
<li>Editorial modification : astyle clean-up</li>
</ul></li>
<li><strong>HAL PCD</strong>
<ul>
<li>Remove lock/unlock from USB receive and transmit endpoints.</li>
</ul></li>
<li><strong>LL Drivers changes</strong></li>
<li><strong>LL_TIM</strong>
<ul>
<li>Ensure write operation of BKE and BKP bits is effective by adding fake read operation to guarantee 1 APB clock cycle before function exit.</li>
<li>Exchange behavior between LL_TIM_EnableUpdateEvent() and LL_TIM_DisableUpdateEvent().</li>
</ul></li>
<li><strong>LL_RCC</strong>
<ul>
<li>Fix issue in RCC_GetSystemClockFreq() when HSI48 oscillator is selected as system clock.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1_6_0" aria-hidden="true"> <label for="collapse-section1_6_0" aria-hidden="true"><strong>V1.6.0 / 07-April-2017</strong></label>
<div>
<h2 id="main-changes-9">Main Changes</h2>
<ul>
<li><strong>Maintenance release to fix known defects and enhancements implementation</strong></li>
<li><strong>HAL Drivers changes</strong></li>
<li><strong>HAL Generic</strong>
<ul>
<li>MISRA C 2004 rule 10.6 (U suffix applied to all constants of unsigned type).</li>
<li>Remove useless cast (uint32_t ) cast in case of U suffix.</li>
<li>Fix Code Sonar warnings (useless assignment, cast alters value, empty while statement).</li>
</ul></li>
<li><strong>HAL</strong>
<ul>
<li>Modify HAL_Delay to guarantee the minimum Delay provided as parameter.</li>
<li>Add definition of USE_SPI_CRC to activate CRC feature inside HAL SPI driver.</li>
<li>New API : HAL_GetUID() read the unique device identifier.</li>
<li>Correct RTC_ASYNCH_PREDIV and RTC_SYNCH_PREDIV definition when LSI configured as RTC clock source.</li>
</ul></li>
<li><strong>HAL CAN</strong>
<ul>
<li>Add transmission abort when timeout is reached in HAL_CAN_Transmit().</li>
<li>Add management of overrun error.</li>
<li>Store missing FIFO number in received message.</li>
<li>Extend SET_BIT, CLEAR_BIT macro usage.</li>
<li>Allow possibility to receive messages from the 2 RX FIFOs in parallel via interrupt.</li>
<li>Fix message lost issue with specific sequence of transmit requests.</li>
</ul></li>
<li><strong>HAL ADC</strong>
<ul>
<li>DMA transfer must be disabled during calibration to avoid ADC calibration factor insertion among ADC conversion data.</li>
<li>Remove unused literal ADC_EOC_SINGLE_SEQ_CONV.</li>
</ul></li>
<li><strong>HAL COMP</strong>
<ul>
<li>Rename LL_COMP_DELAY_STARTUP_US in COMP_DELAY_STARTUP_US.</li>
</ul></li>
<li><strong>HAL SPI</strong>
<ul>
<li>Replace hard coded values by CMSIS define.</li>
<li>Extend SET_BIT, CLEAR_BIT macro usage.</li>
<li>Add timeout management in HAL_SPI_Abort() and HAL_SPI_Abort_IT().</li>
<li>Add IS_SPI_DMA_HANDLE macro to check handle validity.</li>
<li>Add IS_SPI_16BIT_ALIGNED_ADDRESS macro to check if data buffer address are 16 bits aligned when transferring more than 1 byte (there is no support for unaligned accesses on the Cortex-M0 processor).</li>
<li>In 2 lines transmission configuration, ensure RXFIFO is empty at the end of transmission. Add SPI_WaitFifoStateUntilTimeout (SPI_FLAG_FRLVL) call.</li>
</ul></li>
<li><strong>HAL RTC</strong>
<ul>
<li>add a wait for synchronization on HAL_RTC_Init function to avoid re-entering in initialization state before previous exit of initialization state.</li>
</ul></li>
<li><strong>HAL TIM</strong>
<ul>
<li>New API to disable unconditionally the Main Output Enable of a timer instance : __HAL_TIM_MOE_DISABLE_UNCONDITIONALLY().
<ul>
<li>DMA burst mode enhancement. Add 2 new API in order to manage serape parameters for burst length and data length:
<ul>
<li>HAL_TIM_DMABurst_MultiWriteStart()</li>
<li>HAL_TIM_DMABurst_MultiReadStart()</li>
</ul></li>
</ul></li>
</ul></li>
<li><strong>HAL SMBUS</strong>
<ul>
<li>Add new feature “ZONE READ/WRITE” : The ZONE_READ and ZONE_WRITE protocols are used to simultaneously read from or write to some or all of the devices on a bus. New options defined (SMBUS_OTHER_FRAME_NO_PEC, SMBUS_OTHER_FRAME_WITH_PEC, SMBUS_OTHER_AND_LAST_FRAME_NO_PEC, SMBUS_OTHER_AND_LAST_FRAME_WITH_PEC).</li>
<li>New API : Digital/Analog filter configuration with HAL_SMBUS_ConfigAnalogFilter() and HAL_SMBUS_ConfigDigitalFilter().</li>
</ul></li>
<li><strong>HAL PCD</strong>
<ul>
<li>Modify PCD_ReadPMA() to avoid HardFault when buffers not aligned on 16 bits address.</li>
</ul></li>
<li><strong>LL Drivers changes</strong></li>
<li><strong>LL Generic</strong>
<ul>
<li>MISRA C 2004 rule 10.6 (U suffix applied to all constants of unsigned type).</li>
<li>MISRA C 2004 rule 11.5 (no cast that removes any const or volatile qualification from the type addressed by a pointer).</li>
<li>Remove useless cast (uint32_t ) cast in case of U suffix.</li>
<li>Replace hard coded POSITION definition in driver by the associated PPP_xxx_pos CMSIS define (PPP could be I2C, USART …).</li>
</ul></li>
<li><strong>LL GPIO</strong>
<ul>
<li>Rename GPIO_AFRH and GPIO_AFRL bit fields for alignment with all STM32 series.</li>
</ul></li>
<li><strong>LL DMA</strong>
<ul>
<li>For better performances, use WRITE_REQ() and READ_REG() when accessing CPAR and CMAR registers.</li>
<li>Replace SET_BIT by WRITE_REG macro to clear flags in DMA_ICFR register (register is write only).</li>
</ul></li>
<li><strong>LL USART</strong>
<ul>
<li>Add IS_LL_USART_BRR macro : In case of oversampling by 16 and 8, Baud Rate Register content must be greater than or equal to 16.</li>
</ul></li>
<li><strong>LL I2C</strong></li>
<li>OA1EN bit of OAR1 register should be set only when own address different from 0 (0 reserved for General Call address).</li>
<li><strong>LL CRS</strong>
<ul>
<li>Add missing shift of HSI48CalibrationValue parameter value in LL_CRS_ConfigSynchronization().</li>
</ul></li>
<li><strong>LL RTC</strong>
<ul>
<li>For better performances, simplify implementation of LL_RTC_TIME_Get() and LL_RTC_DATE_Get().</li>
</ul></li>
<li><strong>LL USART</strong>
<ul>
<li>Add ((void)(temp)) to Prevent unused argument(s) compilation warning when USE_FULL_ASSERT not defined.</li>
</ul></li>
<li><strong>LL_TIM</strong>
<ul>
<li>New API : In order to program BDTR register in a single write operation add :
<ul>
<li>LL_TIM_BDTR_StructInit(), LL_TIM_BDTR_Init().</li>
<li>LL_TIM_BDTR_InitTypeDef structure definition with associated macro : IS_LL_TIM_OSSR_STATE, IS_LL_TIM_OSSI_STATE, IS_LL_TIM_LOCK_LEVEL, IS_LL_TIM_BREAK_STATE, IS_LL_TIM_BREAK_POLARITY, IS_LL_TIM_AUTOMATIC_OUTPUT_STATE.</li>
</ul></li>
<li>Add initialization of AutomaticOuput field in LL_TIM_BDTR_StructInit().</li>
</ul></li>
<li><strong>LL UTILS</strong>
<ul>