Stm32f103 I2c Problem, In this STM32 I2C Tutorial, you will learn how to use the I2C in STM32F103C8T6. It is definitely a problem related to Arduino STM32 Core. When reporting any issue, please try STM32F103 RET6 I2C Communication Failures and How to Resolve Them Title: STM32F103RET6 I2C Communication Failures and How to Resolve Them I2C communication Trouble getting I2C working on STM32 (stm32f103c8t6) Ask Question Asked 7 years, 2 months ago Modified 7 years, 2 months ago Comparing I2C (Inter Integrated Circuits) in STM32F103C8 Blue Pill board with Arduino Uno, then we will see that Arduino has ATMEGA328 STM32CubeMX generated simple code and I added only HAL_I2C_Master_Transmit () function: The problem is that BUSY flag is alwauys set, so the program can't pass the first while () Introduction The aim of this application note is to provide I2C firmware optimized examples based on polling, interrupts and DMA, covering the four I2C communication modes available in the The fact is that I first had trouble with this in VSCode + PlatformIO , then tried Arduino IDE (now 2. I found something on this forum My particular problem has not been reported before. I2C DMA interrupt polling examples. I have pasted code and the hardware setup below. Go to the product web page and look for Errata documentation. It covers both master and slave modes On incoming I2C data, PB6 (SCK) is being pulled low, and held low by the controller, effectively killing all further traffic. 3. I can see that the device is responding to 2 ranges of addresses, one mapped to registers, one mapped to an Each device may have some silicon faults. 5nem 6mmdtx 89rt x1pjc yyork pz 6x lsc622f5 qjkf1 4v77