STM32 MCUs Products

SAI or SPI clock requirement as I2S slave

When acting as I2S master, the kernel clock frequency for SAI or SPI must be set to some multiple of the audio sample rate, and the bit clock and frame sync signals are then generated by dividing the kernel clock. Now, if acting as I2S slave the bit ...

Hi I am using STM32H7A3 Nucleo board. I am using uart receive in interrupt mode by enabling global interrupt.

After receiving some data through interrupt, Is there any way to disable interrupt mechanism and go back to blocking mode for receiving remaining data.I tried NVIC_DisableIRQ(0 to disable interrupt. After that when i tried to receive through blocking...

I am developing a product using STM32F407ZGT. During multi-communication with other products, it was found that RS-485 communication was not available under 7BIT and ODD conditions. I am asking for help to solve it.

Please check whether 7BIT communication is not supported for STM32F407ZGT product.

I need to log sensor data in SD card after every 1 minute using stm32f407vgt6 controller and need to read all the data from the file stored in sd card and print it using uart interface.

SPI always calling callback

Hello to everyone. I'm creating a project where i need to communicate via SPI. My main board, is configured as full duplex Master, and i have other STM working as full duplex slave. But, i have a problem. If i configure the boards to just have one fu...

To measure Sine wave Voltage and Frequency directly with help of MCU STM32F030CC.

I want to measure AC signal voltage and frequency .Presently i am using function generator to generate sine wave having 3Vpp(peak to peak Voltage) and feed directly to MCU pin which support ADC channel(Channel 7).So any one can guide on this.I have i...

Use HAL_SPI_Receive_DMA receive data. Sometimes the received data shift 3 bytes. Why? The board is STM32F750, build as SPI slave.

SPI slave receives data of unknow size.When SPI master gives a rising edge, SPI slave detects the rising edge and starts HAL_SPI_Receive_DMA(define a large size amount of data to be received). When SPI master gives a falling edge, SPI slave detects t...