S PI introduction. The SPI
interface provides two main functions, supporting either the SPI protocol or the I2S. audio protocol. By default, it is the SPI function that is selected. It is possible to switch the. interface from SPI to I2S by software. The serial peripheral interface (SPI) allows half full-duplex, synchronous, serial. I need to sendreceive a 16 bits data to an external ADC, but I realized that SPI HAL functions just support 8 bits buffers. How can I send
more than 8 bits Even DMA function all work with 8 bits. In CubeMX I set the word length as 16. STM32CubeMX. STM32L4 SPI Transfer complete interrupt using DMA fires only
once. I'm trying to send an array of 10 bytes between 2 nucleo boards (NUCLEO-L432KCU) using SPI and DMA. My goal is to develop the code for the slave board using the Low Level APIs. The master board is used simply for testing and, when everything will work, it will be replaced with.