STM32 MCUs Products

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Forum Posts

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 ...

HWidj.2 by Associate III
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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...

IRodr.2 by Associate II
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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...

Joey.z by Associate
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