AnsweredAssumed Answered

Bad SPI clock duration in stm32f746

Question asked by pol.pol on Nov 11, 2016
Latest reply on Dec 10, 2016 by S. Marsanne
Hello. I have got stm32f746 and I make project with cubeMX.
I  want to use SPI4, SPI5, SPI6 as fullduplex master with 50Mb/s baudrate.
Then I try to
HAL_SPI_Transmit(&hspi4, pData, 1, 30000);
in while(1) cycle. Data has been sent, but the clock is very bad.(I put image in attachment. You can see there.)

As you see, duration is not 50%. When I set baudrate less then 50Mb/s, may be clock is good, but I need only 50Mb/s.
Is this my fault, or this is bug?