External DAC / ADC interface - STM32F7

[Omar Suárez]

Posted on March 29, 2017 at 12:19

Hi,

I would like to use some external DACs and ADCs connected to my STM32F769 MCU.

The DACs (AD5512) and ADCs (ADS8320) have an interface with :

   + DIN : data input

   + CS : chip select

   + SCLK : clock for the data synchronization

My question is about how to interface with the SCLK signal and what is the best way to implement it. I guess the standard solution is to HIGH or LOW the output pin directly to simulate the clock but I would like to know whether there is another better or more professional solution for doing this using the STM32F7.

Thanks in advanced,

Omar

#dac #stm32f7 #adc

[waclawek.jan]

Posted on March 30, 2017 at 01:17

It appears that both chips could be driven from SPI (clock and data - chipselect still would need to be driven 'manually'), but it's up to you to work out the details.

JW