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# Release Notes for STM32F103RB-Nucleo Examples Copyright 2017 STMicroelectronics
## Update History ### V1.8.4 / 18-May-2021 Main Changes Update examples and applications to avoid clearing DMA using global flag GIFx. ### V1.8.0 / 26-June-2019 Main Changes Update HAL I2C examples to be compliant with new I2C API ### V1.7.0 / 09-October-2018 Main Changes Update stm32f1xx_hal_conf.h files to add support to HAL CAN Legacy Module. ### V1.5.0 / 14-April-2017 Main Changes Update stm32f1xx_hal_conf.h file to be aligned with new conf_template.h Update WWDG examples to be in line with latest updates done on HAL WWDG drivers Remove the HAL_WWDG_Start function in the main.c file Remove HAL_WWDG_MspDeInit function from stm32f1xx_hal_msp.c file Update HAL examples to use TIM HW as time base source instead of Systick Add 2 new HAL TimeBase examples : HAL_TimeBase_RTC_ALARM and HAL_TimeBase_RTC_WKUP Add 2 new I2C examples to explore the repeat start feature: I2C_TwoBoards_RestartAdvComIT and I2C_TwoBoards_RestartComIT Rework I2C_TwoBoards_AdvComIT and I2C_TwoBoards_ComIT examples following changes in latest HAL version Update to allow master to restart communication when slave doesn't acknowledge its address Update I2C_TwoBoards_ComDMA example to be inline with new HAL I2C DMA model : Configure and enable the I2C IRQ in HAL_I2C_MspInit() function In stm32f1xx_it.c file: add a call to HAL_I2C_IRQHandler() function ### V1.4.0 / 29-April-2016 Main Changes Update all the system_stm32f1xx.c with new AHBPrescTable and APBPrescTable. ### V1.3.0 / 18-December-2015 Main Changes To ensure the full compatibility of the GPIO interfaces across all the STM32 families, the gpio speed definition have been renamed: GPIO_SPEED_LOW to GPIO_SPEED_FREQ_LOW GPIO_SPEED_MEDIUM to GPIO_SPEED_FREQ_MEDIUM GPIO_SPEED_HIGH to GPIO_SPEED_FREQ_HIGH aliases are created to keep backward compatibility Reduce the default timeout value for the startup of the HSE form 5s to 100ms. Update the Keil projects from V4 to V5. Adapt the SW4STM32 projects to version 1.5.0 of the IDE. ### V1.2.0 / 31-July-2015 Main Changes FLASH_WriteProtection: Simplify the example. ### V1.1.0 / 05-June-2015 Main Changes Add support of System Workbench for STM32 (SW4STM32) toolchain ### V1.0.0 / 16-December-2014 Main Changes First official release. ## License Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); You may not use this package except in compliance with the License. You may obtain a copy of the License at: http://www.st.com/software_license_agreement_liberty_v2 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. For complete documentation on STM32 Microcontrollers visit www.st.com/STM32