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sovpeople
sovpeople
Visitor II
February 7, 2014
Question

Clock for AD7705BRZ from Microcontroller (STM32F100C4)

  • February 7, 2014
  • 1 reply
  • 882 views
Posted on February 07, 2014 at 11:14

Hello!

I have some difficulties with my circuit developing. I don't have any crystall resonantor on my PCB but AD7705 need to be clocked externally. I've decided to use clock output from microcontroller (STM32F100). But I don't shure. Can you look at my scheme?

Thanks

#ad7705 #stm32f100
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1 reply

Tesla DeLorean
Tesla DeLorean
Guru
February 7, 2014
Posted on February 07, 2014 at 17:15

Just connect MCLKIN with the clock you're outputting via PA8

Do NOT connect MCLKOUT, and don't connected that back into the OSC IN/OUT of the STM32, it's pointless.

Connect the RESET for the AD7705BRZ to a GPIO pin on the STM32 you can control it, as PA8 isn't going to be generating a clock when you would normally start the system.

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