Metro M4 reduce SPI speed

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afox
 
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Joined: Sat Aug 30, 2014 5:31 am

Metro M4 reduce SPI speed

Post by afox »

Hi!

I want to connect the OLED display (Adafruit 938) with SPI by a longer cable.
So while it is working with short cables, with long cables I got problems.
On my scope the signals are pretty distorted.
So my first thought would be to reduce the SPI speed, maybe that would help.
How can I reduce the SPI speed on Metro M4 board?


Thanks in advance!
Kind regards,
Alex

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Franklin97355
 
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Joined: Mon Apr 21, 2008 2:33 pm

Re: Metro M4 reduce SPI speed

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