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SPI Bit-Banging | Cypress Semiconductor

SPI Bit-Banging

Summary: 1 Reply, Latest post by Bob Marlowe on 19 Nov 2015 06:42 AM PST
Verified Answers: 0
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Niklas L.'s picture
1 post

Hi Folks,

I know that its not the most beautiful way to establish a SPI connection but due to Project history I have to implement an SPI bit banging method.


My Problem is now that the GPIO pins (even with fast slew rate) are too slow!

Do you know a way how I can get faster slew rates?


Thank you in advice.

user_1377889's picture
9301 posts

Welcome in the forum, Niklas.

Why bit-banging? Why not use an SPI component?? And I question that the slew rates are bad, What board do you use, which pins?

Can you post your complete project, so that we all can have a look at all of your settings? To do so, use
Creator->File->Create Workspace Bundle (minimal)
and attach the resulting file.



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