Ask questions, find answers, and share insights on STM32 products and their technical features.
We are using I2C channel 1 for EEPROM and RTC (Semophore used for exclusive access) and I2C channel 2 for Touch controller. Both I2C runs at 400KHz. Everything works normally, Suddenly I2C channel 1 becomes busy at random time. It is really hard to r...
I am trying to get LM35 temperature sensor value using STM32F411RE. When supply voltage fed to LM35 is 3.3 V, the correct digital data is produced. But when 5V is fed as supply to LM35, the digital values produced are the same as those when 3.3V is s...
HiWe are using the STM32L4S7AI. We have USART2 configured as 9-bit data.We are using the HAL and have been using 8-bit HAL on many STM32 for a while... this is our first 9-bit data use.We set UART_InitTypeDef.WordLength to UART_WORDLENGTH_9B.On the w...
There are two variants, STM32H7B3IIT6 without SMPS and STM32H7B3IIT6Q with SMPS. What are the differences between using or not using SMPS? Why is it preferred with SMPS?
Hi team, I am trying to generate I2C driver code using STM32CubeIDE, to understand perpheral functions. I was successful in generating the code but i cant find the functions which I am looking for like I2C_Init(), I2C_cmd, I2C_GetFlagStatus() ...Coul...
Hi community!I would like to understand if it is normal that when I use DMA method to receive data the callback related to this method are invoked even when there is nothing connected to the Tx and Rx pins of my microcontroller.I'm using a NUCLEO-F30...
Dear all,How to choose the Input capture filter sampling frequency? Is there any method to choose the appropriate value for ICxF bits or do we have to try and find the best value? Anyone has experience with this topic, please share the experience you...
I try to VREFPIN in internal mode (so VREFPIN is an output).Based on IDE STM32CUBEIDE 1.3.0 and using a STM32G071 MCU.The generated code is : void HAL_MspInit(void){ __HAL_RCC_SYSCFG_CLK_ENABLE(); __HAL_RCC_PWR_CLK_ENABLE(); /* System interrupt init...
