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STM32F401 SPI problem

Question asked by siu.clive on Jul 30, 2015
Latest reply on Jul 31, 2015 by Clive One
I work the SPI1 normally,
but cannot work on other 2,3,4....
i think F401 have SPI2,3,4 right?
i via dma and setting follow my setting in SPI1
i try SPI4, DMA channel 5 stream 3,4 for tx rx. but no output.
the stdperiph lib seems to be V1.0.0. do i need another lib for that?

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