I have a Nucleo STM32F767ZI with SPI2 and SPI3 configured for 8 bit mode.  When I send data to SPI2, I see the correct data on SPI2 MOSI, but just a static high level on the SPI2 SCK using a scope.  Using SPI3 I see both the SCK and MOSI working with...

 I'm having some trouble setting up ADC1 on an STM32F401CEU6 to use DMA and pacing the conversions with a timer.I want to use 2 channels in scan mode with each ADC channel doing conversion every other time the timer triggers the channel. In other wor...