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Feather M4 Express Pin number/names?
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Feather M4 Express Pin number/names?

by darylthunter on Sun Oct 17, 2021 8:53 pm

I'm trying to convert an Arduino sketch for controlling an ADF4351 PLL board that was written for a different Arduino board for use with my Feather M4 Express board.

The ADF4351 board uses SPI to communicate and the pin names/numbers are different from what I am seeing for the Feather M4 Express. Is there a board definition file some where in the IDE that tells me which pins are assigned as what?

Thanks!

darylthunter
 
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Re: Feather M4 Express Pin number/names?

by dastels on Mon Oct 18, 2021 8:42 am

What are the pins named on your ADF4351 board?

The main SPI pins on the Feather are SCK (clock), MO/MOSI (data from the MCU to the PLL), and MI/MISO (data from the PLL to the MCU). You'll also need a CS (chip select).

Dave

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Re: Feather M4 Express Pin number/names?

by darylthunter on Wed Oct 20, 2021 1:35 am

Thanks,

I was also able to find what I was looking for in the Library\Arudino15\packages\adafruit\hardware\samd\... path and looking in the right subfolder for the board.

darylthunter
 
Posts: 7
Joined: Sat Jun 16, 2018 2:56 pm

Please be positive and constructive with your questions and comments.