The problem is that the convert/chip-select pin needs to be asserted for about 700ns for the conversion to complete.
The NSS signal of the stm32f4 only is asserted a very short time, so that would not do.
Maybe use a timer to generate the convert pulse that somehow also triggers the spi transfer?
Can this be achieved?
And would that involve an interrupt every 1 microsecond?
Thanks in advance, Sietse
PS. The adc is microchip's MCP33131.
