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Release_Notes.html
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<!DOCTYPE html>
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<title>Release Notes for STM32F2xx HAL Drivers</title>
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<h1 id="release-notes-forstm32f2xx-hal-drivers"><small>Release Notes for</small><mark>STM32F2xx HAL Drivers</mark></h1>
<p>Copyright © 2017 STMicroelectronics<br />
</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 reusability 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 provides a 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 depends 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 functions 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>Full independence from HAL and standalone usage (without HAL drivers)</li>
<li>Full features coverage of 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_2_9" checked aria-hidden="true"> <label for="collapse-section1_2_9" aria-hidden="true"><strong>V1.2.9 / 24-July-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</strong> updates
<ul>
<li>HAL code quality enhancement for MISRA-C Rule-8.13 by adding const qualifiers.</li>
</ul></li>
<li><strong>HAL/LL CORTEX</strong> driver
<ul>
<li>Update HAL_MPU_ConfigRegion() to allow the configuration of the MPU registers independently of the value of Enable/Disable field.</li>
<li>Add new APIs HAL_MPU_EnableRegion() / HAL_MPU_DisableRegion().</li>
</ul></li>
<li><strong>HAL/LL ADC</strong> driver
<ul>
<li>Update __LL_ADC_CALC_TEMPERATURE_TYP_PARAMS() formula to be aligned with reference manual.</li>
</ul></li>
<li><strong>HAL FLASH</strong> driver
<ul>
<li>Remove HAL_LOCK/HAL_UNLOCK() from HAL_FLASH_Program_IT() and HAL_FLASHEx_Erase_IT() APIs.</li>
</ul></li>
<li><strong>HAL HASH</strong> driver
<ul>
<li>Read the last remaining bytes (3 or 2 or 1) of the data in a temporary variable (taking into account swap mode) and enter this variable into the HASH->DIN when the data is not a multiple of 4 bytes.</li>
</ul></li>
<li><strong>HAL CAN</strong> driver
<ul>
<li>Clarify pin configuration in driver header by removing open-drain information.</li>
</ul></li>
<li><strong>HAL I2C</strong> driver
<ul>
<li>Solve Slave No stretch not functional by using HAL Slave interface.</li>
<li>Clear ACK bit once 3 bytes to read remain to be able to send the NACK once the transfer ends.</li>
<li>Update HAL_I2C_Master_Abort_IT() API to support memory abort transfer.</li>
<li>Update the HAL I2C driver to reset PreviousState to I2C_STATE_NONE at the end of transfer.</li>
</ul></li>
<li><strong>HAL RNG</strong> driver
<ul>
<li>Improve performance by removing multiple volatile reads or writes in interrupt handler.</li>
</ul></li>
<li><strong>LL RTC_BKP</strong> driver
<ul>
<li>Correct misleading note about shadow registers.</li>
</ul></li>
<li><strong>HAL SDMMC</strong> driver
<ul>
<li>Update HAL SD processes to manage STBITERR flag.</li>
</ul></li>
<li><strong>HAL DCMI</strong> driver
<ul>
<li>Remove ‘register’ storage class specifier.</li>
</ul></li>
<li><strong>HAL SPI</strong> driver
<ul>
<li>Update HAL_SPI_TransmitReceive() API to set the bit CRCNEXT in case of one byte transaction.</li>
<li>Update IT APIs to enable interrupts after process unlock.</li>
<li>Add wait on flag TXE to be set at the end of transaction to be aligned with reference manual.</li>
</ul></li>
<li><strong>HAL/LL TIM</strong> driver
<ul>
<li>Improve performance by removing multiple volatile reads or writes in interrupt handler.</li>
<li>Update interrupt flag is cleared when the update event is generated by software.</li>
<li>Improve HAL TIM driver’s operational behavior.</li>
<li>Improve period configuration parameter check.</li>
<li>Remove unnecessary change of MOE bitfield in LL_TIM_BDTR_Init().</li>
<li>Add LL_TIM_CC_IsEnabledPreload() API.</li>
</ul></li>
<li><strong>HAL UART</strong> driver
<ul>
<li>Avoid ORE flag to be cleared by a transmit process in polling mode.</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>HAL IWDG</strong> driver
<ul>
<li>Calculate the maximum IWDG Timeout period “HAL_IWDG_DEFAULT_TIMEOUT” based on a Prescaler=128 at LSI frequency=32kHz.</li>
</ul></li>
<li><strong>HAL USB_OTG</strong> driver
<ul>
<li>Fix device connection in case battery charging is used with HS instance linked to internal FS PHY.</li>
<li>ll_usb.c: increase timeout value to allow core reset to complete.</li>
<li>ll_usb.c: improve delay management to set core mode.</li>
<li>hal_hcd.c: ensure to reactivate the usb channel in case of transfer error.</li>
</ul></li>
<li><strong>LL UTILS_</strong> driver
<ul>
<li>Fix a note about Ticks parameter.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1_2_8" aria-hidden="true"> <label for="collapse-section1_2_8" aria-hidden="true"><strong>V1.2.8 / 07-April-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>
<li>All source files: update disclaimer to add reference to the new license agreement.</li>
</ul>
<h2 id="contents-1">Contents</h2>
<ul>
<li><strong>HAL Generic</strong> driver
<ul>
<li>Allow redefinition of macro UNUSED(x).</li>
</ul></li>
<li><strong>HAL GPIO</strong> driver
<ul>
<li>Reorder EXTI configuration sequence in order to avoid unexpected level detection.</li>
</ul></li>
<li><strong>HAL EXTI</strong> driver
<ul>
<li>Fix computation of pExtiConfig->GPIOSel in HAL_EXTI_GetConfigLine().</li>
</ul></li>
<li><strong>HAL ADC</strong> driver
<ul>
<li>Remove multiple volatile reads or writes in interrupt handler for better performance.</li>
</ul></li>
<li><strong>HAL DAC</strong> driver
<ul>
<li>Fix incorrect word ‘surcharged’ in functions headers.</li>
</ul></li>
<li><strong>HAL/LL TIM</strong> driver
<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>Improved driver robustness against wrong period values.</li>
<li>Improved driver robustness against wrong DMA related parameters.</li>
<li>__LL_TIM_CALC_PSC() macro update to round up the evaluate value when the fractional part of the division is greater than 0.5.</li>
<li>Removed lock management from callback management functions.</li>
</ul></li>
<li><strong>HAL RTC</strong> driver
<ul>
<li>Use bits definitions from CMSIS Device header file instead of hard-coded values.</li>
<li>Wrap comments to be 80-character long and correct typos.</li>
<li>Move constants RTC_IT_TAMP. from hal_rtc.h to hal_rtc_ex.h.</li>
<li>Gather all instructions related to exiting the “init” mode into new function RTC_ExitInitMode().</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>Check if the RTC calendar has been previously initialized before entering initialization mode.</li>
<li>Add a new API HAL_UARTEx_GetRxEventType that could be used to retrieve the type of event that has led the RxEventCallback execution.</li>
<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>
</ul></li>
<li><strong>HAL UART</strong> driver
<ul>
<li>Handling of UART concurrent register access in case of race condition between Tx and Rx transfers.</li>
<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>Fix typo in UART_IT_TXE bit description.</li>
<li>Removal of HAL_LOCK/HAL_UNLOCK calls in HAL UART Tx and Rx APIs.</li>
<li>Remove __HAL_LOCK() from HAL_xxx_RegisterCallback()/HAL_xxx_UnRegisterCallback().</li>
</ul></li>
<li><strong>HAL SMARTCARD</strong> driver
<ul>
<li>Improve header description of SMARTCARD_WaitOnFlagUntilTimeout() function.</li>
<li>Remove __HAL_LOCK() from HAL_xxx_RegisterCallback()/HAL_xxx_UnRegisterCallback().</li>
</ul></li>
<li><strong>HAL IRDA</strong> driver
<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>Remove __HAL_LOCK() from HAL_xxx_RegisterCallback()/HAL_xxx_UnRegisterCallback().</li>
</ul></li>
<li><strong>HAL SDMMC</strong> driver
<ul>
<li>Take in account the voltage range in the CMD1 command.</li>
<li>Add new LL function to have correct response for MMC driver.</li>
<li>Update the driver to have all fields correctly initialized.</li>
<li>Add a internal to manage the power class and call it before to update speed of bus width.</li>
<li>Add new API to get the value of the Extended CSD register and populate the ExtCSD field of the MMC handle.</li>
</ul></li>
<li><strong>HAL/LL USART</strong> driver
<ul>
<li>Handle USART concurrent register accesses in case of race condition between Tx and Rx transfers.</li>
<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>Remove __HAL_LOCK() from HAL_xxx_RegisterCallback()/HAL_xxx_UnRegisterCallback().</li>
</ul></li>
<li><strong>HAL CAN</strong> driver
<ul>
<li>Removal of never reached code.</li>
<li>Improve protection against bad inputs.</li>
</ul></li>
<li><strong>HAL HASH</strong> driver
<ul>
<li>HAL code quality enhancement for MISRA-C2012 Rule-2.2_c.</li>
</ul></li>
<li><strong>HAL NOR</strong> driver
<ul>
<li>Enable write operations before effective write to NOR memory in HAL_NOR_Init() function to avoid HardFault.</li>
<li>FMC_WRITE_OPERATION_DISABLE for NOR cause Hardfault for Read operations.</li>
</ul></li>
<li><strong>HAL SPI</strong> driver
<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 IWDG</strong> driver
<ul>
<li>Update comment describing the calculation of HAL_IWDG_DEFAULT_TIMEOUT macro.</li>
</ul></li>
<li><strong>HAL DMA</strong> driver
<ul>
<li>Manage the case of an invalid callback ID passed to the HAL_DMA_RegisterCallback() function.</li>
</ul></li>
<li><strong>HAL I2C</strong> driver
<ul>
<li>Update HAL_I2C_Mem_Write_DMA() and HAL_I2C_Mem_Read_DMA() APIs to add initialization for Devaddress, Memaddress and EventCount parameters.</li>
<li>Update I2C_MasterReceive_RXNE() process to safely manage data N=2 and N=3, Disable BUF interrupt if nothing to do.</li>
<li>Update HAL_I2C_Master_Transmit_IT to return HAL_BUSY instead of HAL_ERROR when timeout occur and I2C_FLAG_BUSY is SET.</li>
<li>Clear ACK bit once 3 bytes to read remain to be able to send the NACK once the transfer ends.</li>
<li>Duplicate the test condition after timeout detection to avoid false timeout detection.</li>
</ul></li>
<li><strong>HAL/LL USB</strong> driver
<ul>
<li>PCD: add handling of USB OUT Endpoint disable interrupt.</li>
<li>PCD: fix device IN endpoint isoc incomplete transfer interrupt handling.</li>
<li>PCD: fix USB device Isoc OUT Endpoint incomplete transfer interrupt handling.</li>
<li>HCD: fix handling of ODDFRM bit in OTG_HCCHARx for Isochronous IN transactions.</li>
<li>PCD: added fix to correct received transfer length with USB DMA activated.</li>
<li>Fix added to USB_ClearInterrupts() and USB_HC_Halt() APIs.</li>
<li>Remove useless software setting to setup the frame interval at 80%.</li>
<li>Adding support of hub split transactions.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section1_2_7" aria-hidden="true"> <label for="collapse-section1_2_7" aria-hidden="true"><strong>V1.2.7 / 21-May-2021</strong></label>
<div>
<h2 id="main-changes-2">Main Changes</h2>
<ul>
<li>General updates to fix known defects.</li>
</ul>
<h2 id="contents-2">Contents</h2>
<ul>
<li><strong>HAL/LL ADC</strong> driver
<ul>
<li>Update timeout mechanism to avoid false timeout detection in case of preemption.</li>
<li>Update HAL ADC driver to add include of the LL ADC driver.</li>
<li>Update LL_ADC_DeInit() API to clear missing SQR3 register.</li>
</ul></li>
<li><strong>HAL CAN</strong> driver
<ul>
<li>Update HAL_CAN_Init() API to be aligned with reference manual 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>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>LL FMC</strong> driver
<ul>
<li>Fix compilation warning with gcc -Wpedantic compiler option.</li>
</ul></li>
<li><strong>HAL NAND</strong> driver
<ul>
<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>
<li>Update functions HAL_NAND_Read_SpareArea_16b() and HAL_NAND_Write_SpareArea_16b() to fix column address calculation issue.</li>
</ul></li>
<li><strong>HAL SDMMC</strong> driver
<ul>
<li>Update the definition of SDMMC_DATATIMEOUT constant in order to allow the user to redefine it in his proper application.</li>
<li>SD_FindSCR() updated to resolve an issue with FIFO blocking when reading.</li>
<li>Update the definition of SDMMC_DATATIMEOUT constant in order to allow the user to redefine it in his proper application.</li>
<li>Add the block size settings in the initialization functions and remove it from read/write transactions to avoid repeated and inefficient reconfiguration.</li>
<li>Update read/write functions in DMA mode in order to force the DMA direction.</li>
<li>Deploy new functions MMC_ReadExtCSD() and SDMMC_CmdSendEXTCSD () that read and check the sectors number of the device in order to resolve the issue of wrongly reading big memory size.</li>
</ul></li>
<li><strong>HAL/LL SPI</strong> driver
<ul>
<li>Update to fix MISRA-C 2012 Rule-13.2.</li>
<li>Update LL_SPI_TransmitData8() API to avoid casting the result to 8 bits.</li>
</ul></li>
<li><strong>HAL IRDA</strong> driver
<ul>
<li>Fixed typos in the IRDA State definition description.</li>
</ul></li>
<li><strong>HAL IWDG</strong> driver
<ul>
<li>Updated HAL_IWDG_Init() API in order to fix HAL_GetTick() timeout vulnerability issue.</li>
<li>Add LSI startup time in default IWDG timeout calculation (HAL_IWDG_DEFAULT_TIMEOUT).</li>
</ul></li>
<li><strong>HAL/LL RTC</strong> driver
<ul>
<li>New APIs to subtract or add one hour to the calendar in one single operation without going through the initialization procedure (Daylight Saving):
<ul>
<li>Add HAL_RTC_DST_Add1Hour()</li>
<li>HAL_RTC_DST_Sub1Hour()</li>
<li>HAL_RTC_DST_SetStoreOperation()</li>
<li>HAL_RTC_DST_ClearStoreOperation()</li>
<li>HAL_RTC_DST_ReadStoreOperation()</li>
</ul></li>
<li>Update __HAL_RTC_…(__HANDLE__, …) macros to access registers through (__HANDLE__)->Instance pointer and avoid “unused variable” warnings.</li>
<li>Correct month management in IS_LL_RTC_MONTH() macro.</li>
</ul></li>
<li><strong>HAL DMA</strong> driver
<ul>
<li>Update HAL_DMA_IRQHandler() API to set the DMA state before unlocking access to the DMA handle.</li>
</ul></li>
<li><strong>HAL EXTI</strong> driver
<ul>
<li>Update macros using LINE as a macro parameter in order to use EXTI_LINE instead to resolve parameter conflicts with standard C usage.</li>
<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>HAL SMARTCARD</strong> driver
<ul>
<li>Fixed typos in the SMARTCARD State definition description.</li>
</ul></li>
<li><strong>HAL/LL TIM</strong> driver
<ul>
<li>Made TIM_DMADelayPulseCplt callback as a private function.</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>
<li>Updated LL_TIM_GetCounterMode() API to return the correct counter mode.</li>
<li>Corrected reversed description of TIM_LL_EC_ONEPULSEMODE One Pulse Mode.</li>
</ul></li>
<li><strong>HAL I2C</strong> driver
<ul>
<li>Update to prevent several calls of Start bit:
<ul>
<li>Update I2C_MemoryTransmit_TXE_BTF() API to increment EventCount.</li>
</ul></li>
<li>Update to avoid I2C interrupt in endless loop:
<ul>
<li>Update HAL_I2C_Master_Transmit_IT(), HAL_I2C_Master_Receive_IT(), HAL_I2C_Master_Transmit_DMA() and HAL_I2C_Master_Receive_DMA() APIs to unlock the I2C peripheral before generating the start.</li>
</ul></li>
<li>Update to use the right macro to clear I2C ADDR flag inside I2C_Slave_ADDR() API as it’s indicated in the reference manual.</li>
</ul></li>
<li><strong>HAL RNG</strong> driver
<ul>
<li>Update timeout mechanism to avoid false timeout detection in case of preemption.</li>
</ul></li>
<li><strong>HAL UART</strong> driver
<ul>
<li>Enhance reception for idle services (ReceptionToIdle):
<ul>
<li>Add a new field (HAL_UART_RxTypeTypeDef) to the UART_HandleTypeDef structure to identify the type of ongoing reception.</li>
<li>Add UART Reception Event Callback registration.</li>
</ul></li>
<li>Add reception specific APIs specific to reception for Idle transfer in different modes:
<ul>
<li>HAL_UARTEx_ReceiveToIdle(): Receive an amount of data in blocking mode until either the expected number of data is received or an IDLE event occurs.</li>
<li>HAL_UARTEx_ReceiveToIdle_IT(): Receive an amount of data in interrupt mode until either the expected number of data is received or an IDLE event occurs.</li>
<li>HAL_UARTEx_ReceiveToIdle_DMA(): Receive an amount of data in DMA mode until 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>
<li>Fix wrong comment related to RX pin configuration within the description section.</li>
<li>Correction on UART ReceptionType management in case of ReceptionToIdle API are called from RxEvent callback.</li>
</ul></li>
<li><strong>LL USART</strong> driver
<ul>
<li>Remove useless check on maximum BRR value by removing IS_LL_USART_BRR_MAX() macro.</li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section13" aria-hidden="true"> <label for="collapse-section13" aria-hidden="true"><strong>V1.2.6 / 22-October-2020</strong></label>
<div>
<h2 id="main-changes-3">Main Changes</h2>
<ul>
<li>General updates to fix known defects.</li>
</ul>
<h2 id="contents-3">Contents</h2>
<ul>
<li><strong>HAL/LL I2C</strong> driver
<ul>
<li>Update to fix hardfault issue with HAL_I2C_Mem_Write_DMA() API:
<ul>
<li>Abort the right ongoing DMA transfer when memory write access request operation failed: fix typo “hdmarx” replaced by “hdmatx”</li>
</ul></li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section12" aria-hidden="true"> <label for="collapse-section12" aria-hidden="true"><strong>V1.2.5 / 09-September-2020</strong></label>
<div>
<h2 id="main-changes-4">Main Changes</h2>
<ul>
<li>General updates to fix known defects and enhancements implementation.</li>
<li><strong>HAL</strong> driver
<ul>
<li>Enhance HAL_SetTickFreq() API robustness:
<ul>
<li>HAL_SetTickFreq(): update to restore the previous tick frequency when HAL_InitTick() configuration failed.</li>
</ul></li>
<li>Add new defines for ARM compiler V6:
<ul>
<li>__weak</li>
<li>__packed</li>
<li>__NOINLINE</li>
</ul></li>
<li>Update HAL_Init_Tick() API to proporely store the priority when using the non-default time base.</li>
</ul></li>
<li><strong>HAL/LL ADC</strong> driver
<ul>
<li>Update the type for the following ADC parameters in ADC_InitTypeDef structure to fix MISRA-C 2012 Rule-10.4 error
<ul>
<li><strong>uint32_t</strong> ContinuousConvMode to <strong>FunctionalState</strong> ContinuousConvMode</li>
<li><strong>uint32_t</strong> DiscontinuousConvMode to <strong>FunctionalState</strong> DiscontinuousConvMode</li>
<li><strong>uint32_t</strong> DMAContinuousRequests to <strong>FunctionalState</strong> DMAContinuousRequests</li>
</ul></li>
<li>Update the following APIs to set status HAL_ADC_STATE_ERROR_INTERNAL and error code HAL_ADC_ERROR_INTERNAL when error occurs:
<ul>
<li>HAL_ADC_Start()</li>
<li>HAL_ADC_Start_IT()</li>
<li>HAL_ADC_Start_DMA()</li>
<li>HAL_ADCEx_InjectedStart()</li>
<li>HAL_ADCEx_InjectedStart_IT()</li>
<li>HAL_ADCEx_MultiModeStart_DMA()</li>
</ul></li>
<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/LL GPIO</strong> driver
<ul>
<li>Update HAL_GPIO_TogglePin() API to allow multi Pin’s toggling.</li>
<li>Update LL_GPIO_TogglePin() API to improve robustness: use BSRR register instead of ODR register.</li>
</ul></li>
<li><strong>HAL/LL RCC</strong> driver
<ul>
<li>Add new HAL interfaces allowing to control the activation or deactivation of PLLI2S:
<ul>
<li>HAL_RCCEx_EnablePLLI2S()</li>
<li>HAL_RCCEx_DisablePLLI2S()</li>
</ul></li>
<li>Add new HAL macros
<ul>
<li>__HAL_RCC_GET_RTC_SOURCE()allowing to get the RTC clock source</li>
<li>__HAL_RCC_GET_RTC_HSE_PRESCALER()allowing to get the HSE clock divider for RTC peripheral.</li>
</ul></li>
<li>Update HAL_RCC_OscConfig() API to avoid overwriting a reserved bit
<ul>
<li>Update to use MODIFY_REG instead of WRITE_REG.</li>
</ul></li>
</ul></li>
<li><strong>HAL/LL HASH</strong> driver
<ul>
<li>Fix Misra-C 2012 Rule-5.1 warning on identifiers to be distinct in the first 31 characters in renaming all <strong>HAL_HASH_xxx_Accumulate_yy()</strong> and <strong>HAL_HASHEx_xxx_Accumulate_yy()</strong> APIs respectively into <strong>HAL_HASH_xxx_Accmlt_yy()</strong> and <strong>HAL_HASHEx_xxx_Accmlt_yy()</strong></li>
<li>Correct phase management issue when performing two successive hash operations on two different buffers</li>
<li>Create new APIs to initialize the HASH peripheral then processes pInBuffer in interruption mode.
<ul>
<li>HASH_Accumulate_IT()</li>
<li>HAL_HASH_SHA1_Accmlt_IT()</li>
<li>HAL_HASH_MD5_Accmlt_IT()</li>
</ul></li>
<li>Create new APIs to wrap-up multi-buffer hashing processing in polling and interrupt modes
<ul>
<li>HAL_HASH_MD5_Accmlt_End()</li>
<li>HAL_HASH_SHA1_Accmlt_End()</li>
<li>HAL_HASH_MD5_Accmlt_End_IT()</li>
<li>HAL_HASH_SHA1_Accmlt_End_IT()</li>
</ul></li>
<li>Ensure processing suspension flag is reset to HAL_HASH_SUSPEND_NONE value in HAL_HASH_Init() API</li>
<li>Add comments to describe case of message made of several parts, not all with length multiple of 4 bytes.</li>
<li>HASH_DMAXferCplt() callback API state improperly set to READY instead of BUSY fixed.</li>
</ul></li>
<li><strong>HAL NOR</strong> driver
<ul>
<li>Correct MISRA-C 2012-Rule-10.4_a / 14.4_d / 18.4 warnings in HAL NOR drivers</li>
<li>Update address calculation in HAL_NOR_ProgramBuffer()</li>
<li>Add new commands operations:
<ul>
<li>NOR_CMD_READ_ARRAY</li>
<li>NOR_CMD_WORD_PROGRAM<br />
</li>
<li>NOR_CMD_BUFFERED_PROGRAM</li>
<li>NOR_CMD_CONFIRM<br />
</li>
<li>NOR_CMD_BLOCK_ERASE<br />
</li>
<li>NOR_CMD_BLOCK_UNLOCK<br />
</li>
<li>NOR_CMD_READ_STATUS_REG</li>
<li>NOR_CMD_CLEAR_STATUS_REG</li>
</ul></li>
<li>Apply adequate commands according to the command set field value
<ul>
<li>command set 1 for Micron JS28F512P33</li>
<li>command set 2 for Micron M29W128G and Cypress S29GL128P</li>
</ul></li>
<li>Update some APIs in order to be compliant for memories with another command set.
<ul>
<li>HAL_NOR_Init()</li>
<li>HAL_NOR_Read_ID()</li>
<li>HAL_NOR_ReturnToReadMode()</li>
<li>HAL_NOR_Read()</li>
<li>HAL_NOR_Program()</li>
<li>HAL_NOR_ReadBuffer()</li>
<li>HAL_NOR_ProgramBuffer()</li>
<li>HAL_NOR_Erase_Block()</li>
<li>HAL_NOR_Erase_Chip()</li>
<li>HAL_NOR_GetStatus()</li>
</ul></li>
</ul></li>
<li><strong>HAL SRAM</strong> driver
<ul>
<li>General update to enhance HAL SRAM driver robustness
<ul>
<li>Update HAL_SRAM_Init() API to avoid activation of burst access for SRAM</li>
</ul></li>
</ul></li>
<li><strong>LL FSMC</strong> driver
<ul>
<li>Remove useless casts.</li>
<li>Update FSMC_NORSRAM_Init() API in order to resolve compilation issue with Microsoft Visual Studio 2017.</li>
<li>Update FSMC_NORSRAM_Extended_Timing_Init() API in order to manage Bus turnaround phase duration FSMC_BWTR1_BUSTURN availability.</li>
</ul></li>
<li><strong>HAL/LL IWDG</strong> driver
<ul>
<li>Update HAL_IWDG_DEFAULT_TIMEOUT define value to consider LSI value instead of hardcoded value</li>
</ul></li>
<li><strong>HAL/LL I2C</strong> update
<ul>
<li>Update I2C_MasterReceiveRXNE() static API to avoid set the STOP bit again after the bit clearing by Hardware during the masking operation
<ul>
<li>Add new API I2C_WaitOnSTOPRequestThroughIT() to wait for stop bit.</li>
</ul></li>
<li>Update sequential APIs to avoid requesting a START when a STOP condition is not fully treated
<ul>
<li>Wait the end of STOP treatment by polling (with a timeout) the STOP bit on Control register CR1</li>
</ul></li>
<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>
</ul></li>
<li><strong>HAL/LL I2S</strong> driver
<ul>
<li>Update HAL_I2S_DMAStop() API to be more safe
<ul>
<li>Add a check on BSY, TXE and RXNE flags before disabling the I2S</li>
</ul></li>
<li>Update HAL_I2S_DMAStop() API to fix multi-call transfer issue(to avoid re-initializing the I2S for the next transfer).
<ul>
<li>Add __HAL_I2SEXT_FLUSH_RX_DR() and __HAL_I2S_FLUSH_RX_DR() macros to flush the remaining data inside DR registers.</li>
<li>Add new ErrorCode define: HAL_I2S_ERROR_BUSY_LINE_RX</li>
</ul></li>
</ul></li>
<li><strong>HAL/LL SPI</strong> driver
<ul>
<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>
<li>Update HAL_SPI_Init() API
<ul>
<li>To avoid setting the BaudRatePrescaler in case of Slave Motorola Mode</li>
<li>Use the bit-mask for SPI configuration</li>
</ul></li>
<li>Update Transmit/Receive processes in half-duplex mode
<ul>
<li>Disable the SPI instance before setting BDIOE bit</li>
</ul></li>
<li>Fix wrong timeout management
<ul>
<li>Calculate Timeout based on a software loop to avoid blocking issue if Systick is disabled</li>
</ul></li>
</ul></li>
<li><strong>HAL/LL UART</strong> driver
<ul>
<li>Update UART BRR calculation for ROM size gain</li>
<li>Update UART polling and interruption processes to fix issues related to accesses out of user specified buffer.
<ul>
<li>Update UART_Transmit_IT(), UART_Receive_IT(), HAL_UART_Transmit() and HAL_UART_Receive() APIs.</li>
</ul></li>
</ul></li>
<li><strong>HAL SMARTCARD</strong> driver
<ul>
<li>Update SMARTCARD transmission and reception APIs to handle memory corruption
<ul>
<li>HAL_SMARTCARD_Transmit(), HAL_SMARTCARD_Receive(), HAL_SMARTCARD_Transmit_IT() and HAL_SMARTCARD_Receive_IT()</li>
</ul></li>
</ul></li>
<li><strong>HAL/LL TIM</strong> driver
<ul>
<li>Align HAL/LL TIM driver with latest updates and enhancements</li>
<li>Update Encoder interface mode to keep TIM_CCER_CCxNP bits low
<ul>
<li>Add TIM_ENCODERINPUTPOLARITY_RISING and TIM_ENCODERINPUTPOLARITY_FALLING definitions to determine encoder input polarity.</li>
<li>Add IS_TIM_ENCODERINPUT_POLARITY() macro to check the encoder input polarity.</li>
<li>Update HAL_TIM_Encoder_Init() API</li>
<li>Replace IS_TIM_IC_POLARITY() macro by IS_TIM_ENCODERINPUT_POLARITY() macro.</li>
</ul></li>
<li>Fix bug when using multiple DMA request to different channels of same timer
<ul>
<li>Introduce DMA burst state management mechanism
<ul>
<li>Add a new structure for DMA Burst States definition : HAL_TIM_DMABurstStateTypeDef</li>
<li>Update __HAL_TIM_RESET_HANDLE_STATE to support DMABurstState</li>
<li>Add a new API HAL_TIM_DMABurstState() to get the actual state of a DMA burst operation</li>
<li>Add DMABurstState, the DMA burst operation state, in the TIM_HandleTypeDef structure</li>
<li>Add new API TIM_DMAErrorCCxN() for TIM DMA error callback (complementary channel)</li>
<li>Add new API TIM_DMADelayPulseNCplt() for TIM DMA Delay Pulse complete callback (complementary channel)</li>
</ul></li>
</ul></li>
<li>Implement TIM channel state management mechanism
<ul>
<li>Add new macro
<ul>
<li>TIM_CHANNEL_STATE_SET_ALL and TIM_CHANNEL_N_STATE_SET_ALL</li>
<li>TIM_CHANNEL_STATE_SET and TIM_CHANNEL_N_STATE_SET</li>
<li>TIM_CHANNEL_STATE_GET and TIM_CHANNEL_N_STATE_GET</li>
</ul></li>
</ul></li>
<li>Add new API HAL_TIM_GetActiveChannel()</li>
<li>Add new API HAL_TIM_GetChannelState() to get actual state of the TIM channel</li>
<li>Add a new structure for TIM channel States definition : HAL_TIM_ChannelStateTypeDef</li>
<li>Update __HAL_TIM_RESET_HANDLE_STATE to support ChannelState and ChannelNState</li>
<li>Add a new element in the TIM_HandleTypeDef structure : ChannelState to manage TIM channel operation state</li>
<li>Add a new element in the TIM_HandleTypeDef structure : ChannelNState to manage TIM complementary channel operation state</li>
<li>Update HAL_TIMEx_MasterConfigSynchronization() API to avoid functional errors and assert fails when using some TIM instances as input trigger.
<ul>
<li>Replace IS_TIM_SYNCHRO_INSTANCE() macro by IS_TIM_MASTER_INSTANCE() macro.</li>
<li>Add IS_TIM_SLAVE_INSTANCE() macro to check on TIM_SMCR_MSM bit.</li>
</ul></li>
<li>Remove ‘register’ storage class specifier from LL TIM driver.</li>
<li>Add new API HAL_TIM_DMABurst_MultiWriteStart() allowing to configure the DMA Burst to transfer multiple Data from the memory to the TIM peripheral</li>
<li>Add new API HAL_TIM_DMABurst_MultiReadStart() allowing to configure the DMA Burst to transfer Data from the TIM peripheral to the memory</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>
<li><strong>LL UTILS</strong> driver
<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-section11" aria-hidden="true"> <label for="collapse-section11" aria-hidden="true"><strong>V1.2.4 / 31-December-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><strong>HAL/LL GPIO</strong> update
<ul>
<li>Update GPIO initialization sequence to avoid unwanted pulse on GPIO Pin’s</li>
</ul></li>
<li><strong>HAL I2C</strong> update
<ul>
<li>Update HAL_I2C_EV_IRQHandler() API to fix I2C send break issue
<ul>
<li>Add additional check on hi2c->hdmatx, hdmatx->XferCpltCallback, hi2c->hdmarx, hdmarx->XferCpltCallback in I2C_Master_SB() API to avoid enabling DMA request when IT mode is used.</li>
</ul></li>
<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 HAL_I2C_Init() API to force software reset before setting new I2C configuration.</li>
<li>Update HAL I2C processes to report ErrorCode when wrong I2C start condition occurs
<ul>
<li>Add new ErrorCode define: HAL_I2C_WRONG_START</li>
<li>Set ErrorCode parameter in I2C handle to HAL_I2C_WRONG_START</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->hdmtx and hi2c->hdmarx before resetting DMA Tx/Rx complete callbacks.</li>
</ul></li>
</ul></li>
<li><strong>HAL IRDA</strong> update
<ul>
<li>Update IRDA interruption handler to manage correctly the overrun interrupt
<ul>
<li>Add in the HAL_IRDA_IRQHandler() API a check on USART_CR1_RXNEIE bit when an overrun interrupt occurs.</li>
</ul></li>
</ul></li>
<li><strong>HAL SMARTCARD</strong> update
<ul>
<li>Update SMARTCARD interruption handler to manage correctly the overrun interrupt.
<ul>
<li>Add in the HAL_SMARTCARD_IRQHandler() API a check on USART_CR1_RXNEIE bit when an overrun interrupt occurs.</li>
</ul></li>
</ul></li>
<li><strong>HAL UART</strong> update
<ul>
<li>Update UART polling processes to handle efficiently the Lock mechanism
<ul>
<li>Move the process unlock at the top of the HAL_UART_Receive() and HAL_UART_Transmit() API.</li>
</ul></li>
<li>Update UART interruption handler to manage correctly the overrun interrupt
<ul>
<li>Add in the HAL_UART_IRQHandler() API a check on USART_CR1_RXNEIE bit when an overrun interrupt occurs.</li>
</ul></li>
</ul></li>
<li><strong>HAL USART</strong> update
<ul>
<li>Update USART interruption handler to manage correctly the overrun interrupt
<ul>
<li>Add in the HAL_USART_IRQHandler() API a check on USART_CR1_RXNEIE bit when an overrun interrupt occurs.</li>
</ul></li>
</ul></li>
</ul>
</div>
</div>
<div class="collapse">
<input type="checkbox" id="collapse-section10" aria-hidden="true"> <label for="collapse-section10" aria-hidden="true"><strong>V1.2.3 / 26-June-2019</strong></label>
<div>
<h2 id="main-changes-6">Main Changes</h2>
<ul>
<li>General updates to fix known defects and enhancements implementation</li>
<li>HAL drivers clean up: remove double casting ‘uint32_t’ and ‘U’</li>
<li>General updates to fix CodeSonar compilation warnings</li>
<li>General updates to fix the user manual .chm files</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, CRYP, DAC, DCMI, ETH, HASH, HCD, I2C, UART, USART, IRDA, SMARTCARD,</strong></li>
<li><strong>MMC, NAND, NOR, PCCARD, PCD, RNG, RTC, SD, SRAM, SPI, I2S, TIM and WWDG</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 stm32f2xx_hal_conf.h project configuration file (template file stm32f2xx_hal_conf_template.h available from Drivers/STM32F2xx_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>
<li><strong>Rework of HAL CRYP driver (compatibility break)</strong>
<ul>
<li>HAL CRYP driver has been redesigned with new API’s, to bypass limitations on data Encryption/Decryption management present with previous HAL CRYP driver version.</li>
<li>The new HAL CRYP driver is the recommended version. It is located as usual in Drivers/STM32F2xx_HAL_Driver/Src and Drivers/STM32f2xx_HAL_Driver/Inc folders. It can be enabled through switch HAL_CRYP_MODULE_ENABLED in stm32f2xx_hal_conf.h</li>
<li>The legacy HAL CRYP driver is no longer supported.</li>
</ul></li>
<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/STM32F2xx_HAL_Driver/Src and Drivers/STM32f2xx_HAL_Driver/Inc folders. It can be enabled through switch HAL_CAN_MODULE_ENABLED in stm32f2xx_hal_conf.h</li>
<li>The legacy HAL CAN driver is also present in the release in Drivers/STM32F2xx_HAL_Driver/Src/Legacy and Drivers/STM32F2xx_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 stm32f2xx_hal_conf.h</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>
</ul></li>
<li>Add HAL_GetUIDw0(), HAL_GetUIDw1() and HAL_GetUIDw2() API in order to returns the unique device identifier</li>
</ul></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>Rename CAN_FilterConfTypeDef structure to CAN_FilterTypeDef and update some fields:
<ul>
<li>FilterNumber to FilterBank</li>
<li>BankNumber to SlaveStartFilterBank</li>
</ul></li>
<li>Rename CanTxMsgTypeDef structure to CAN_TxHeaderTypeDef and update some fields:
<ul>
<li>Data to TransmitGlobalTime</li>
</ul></li>
<li>Rename CanRxMsgTypeDef structure to CAN_RxHeaderTypeDef and update some fields:
<ul>
<li>Data to Timestamp</li>
<li>FMI to FilterMatchIndex</li>
</ul></li>
<li>Update possible values list for FilterActivation parameter in CAN_FilterTypeDef structure
<ul>
<li>CAN_FILTER_ENABLE instead of ENABLE</li>
<li>CAN_FILTER_DISABLE instead of DISABLE</li>
</ul></li>
<li>HAL_CAN_Init() is split into both HAL_CAN_Init() and HAL_CAN_Start() API’s</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()</li>
<li>to get Rx message.</li>
<li>HAL_CAN_Receive_IT() is replaced by HAL_CAN_ActivateNotification() to enable receive IT, then HAL_CAN_GetRxMessage()</li>
<li>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>
<li><em>Refer to the following example to identify the changes</em></li>
</ul></li>
<li><strong>HAL CRC</strong> update
<ul>
<li>Update __HAL_CRC_DR_RESET() macro</li>
<li>Update HAL_CRC_DeInit() API to
<ul>
<li>Be able to return HAL status when CRC is is already busy</li>
<li>DeInit the low level hardware after reset IDR register content</li>
</ul></li>
<li>Remove extra call to HAL_LOCK/HAL_UNLOCK from the followings API’s:
<ul>
<li>HAL_CRC_Accumulate()</li>
<li>HAL_CRC_Calculate()</li>
</ul></li>
</ul></li>
<li><strong>HAL CRYP</strong> update
<ul>
<li><strong>The CRYP_InitTypeDef</strong> is no more supported, changed by <strong>CRYP_ConfigTypedef</strong> to allow changing parameters</li>
<li>Using HAL_CRYP_setConfig() API without reinitialize the CRYP IP using the HAL_CRYP_Init() API</li>
<li>New parameters added in the <strong>CRYP_ConfigTypeDef</strong> structure: <strong>B0</strong> and <strong>DataWidthUnit</strong></li>
<li>Input data size and error code parameters are added in the <strong>CRYP_HandleTypeDef</strong> structure</li>
<li>Add new APIs to manage the CRYP configuration:
<ul>
<li>HAL_CRYP_SetConfig()</li>
<li>HAL_CRYP_GetConfig()</li>
</ul></li>
<li>Add new APIs to encrypt and decrypt data:
<ul>
<li>HAL_CRYP_Encypt()</li>
<li>HAL_CRYP_Decypt()</li>
<li>HAL_CRYP_Encypt_IT()</li>
<li>HAL_CRYP_Decypt_IT()</li>
<li>HAL_CRYP_Encypt_DMA()</li>
<li>HAL_CRYP_Decypt_DMA()</li>
</ul></li>
<li>More complete “How to use the new driver” is detailed in the driver header section itself.</li>
<li><em>Refer to the following example to identify the changes</em></li>
</ul></li>
<li><strong>HAL DAC</strong> update
<ul>
<li>Overall rework of the driver for a more efficient implementation
<ul>
<li>Update HAL_DAC_Start(), HAL_DAC_Start_DMA(), HAL_DAC_Stop_DMA() and HAL_DAC_ConfigChannel() API to
<ul>
<li>Update lock mechanism for DAC process</li>
<li>Optimize code by using direct register read</li>
</ul></li>
<li>Update HAL_DAC_IRQHandler() function to
<ul>
<li>Add error management in case DMA errors through HAL_DAC_DMAUnderrunCallbackCh1() and HAL_DACEx_DMAUnderrunCallbackCh2()</li>
<li>Optimize code by using direct register read</li>
</ul></li>
</ul></li>
</ul></li>
<li><strong>HAL DCMI</strong> update
<ul>
<li>Update HAL_DCMI_Start_DMA() function to Enable the DCMI peripheral</li>
<li>Add new timeout implementation based on cpu cycles for DCMI stop</li>
<li>Update lock mechanism for DCMI process</li>
<li>Update HAL_DCMI_IRQHandler() function to:
<ul>
<li>Optimize code by using direct register read</li>
</ul></li>
<li>The extension files stm32f2xx_hal_dcmi_ex.c/.h is added and kept empty for projects compatibility reason</li>
<li>Add DCMI_SyncUnmaskTypeDef structure and HAL_DCMI_ConfigSyncUnmask() API to manage embedded synchronization delimiters unmasks</li>
<li>HAL DCMI driver clean-up: remove non referenced callback APIs: HAL_DCMI_VsyncCallback() and HAL_DCMI_HsyncCallback()</li>
</ul></li>
<li><strong>HAL DMA</strong> update
<ul>
<li>Add clean of callbacks in HAL_DMA_DeInit() API</li>
<li>Remove FIFO error enabling in “HAL_DMA_Start_IT”
<ul>
<li>when FIFO error monitoring is requested in IT model, the macro __HAL_DMA_ENABLE_IT can be used to enable the FIFO error IT at the user Msp functio</li>
</ul></li>
</ul></li>
<li><strong>HAL FLASH</strong> update
<ul>
<li>HAL_FLASH_Unlock() update to return state error when the FLASH is already unlocked</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 HASH</strong> update
<ul>
<li>Overall rework of the driver for a more efficient implementation
<ul>
<li>HASH API changes for MISRA-C 2012 compliance</li>
<li>Update HASH_Start_DMA() to add check on HASH_CR_MDMAT bit before checking input buffer length in case of multi-buffer processing</li>
<li>Fill-up empty statement in HAL_HASH_DMAFeed_ProcessSuspend() to correct CodeSonar warning</li>
</ul></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 API’s
<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->hdmatxand hi2c->hdmarx to avoid the DMA request enable when ITmode is used.</li>
</ul></li>
</ul></li>
<li><strong>HAL UART/USART/IrDA/SMARTCARD</strong> update
<ul>
<li>Overall rework of the driver for a more efficient implementation
<ul>
<li>Improve I/O operation functions: separate transfer process and <em>PPP</em> state management</li>
<li>Update the HAL_<em>PPP</em>_IRQHandler function by optimizing the management of interrupt errors</li>
<li>Align driver with the Reference Manual regarding registers and bit definition naming</li>
</ul></li>
</ul></li>
<li><strong>LL IWDG</strong> update
<ul>
<li>Update LL inline macros to use IWDGx parameter instead of IWDG instance defined in CMSIS device</li>
</ul></li>
<li><strong>HAL RNG</strong> update
<ul>
<li>Add ErrorCode parameter in HAL RNG Handler structure</li>
<li>Add HAL_RNG_GetError() API</li>
<li>HAL Lock/Unlock mechanism update</li>
</ul></li>
<li><strong>HAL/LL RTC</strong> update
<ul>
<li>HAL/ LL drivers optimization
<ul>
<li>HAL driver: remove unused variables</li>
<li>LL driver: getter APIs optimization</li>
</ul></li>