[STM32F103VE] SPI1 strange behaviour

yooz · ‎2012-02-23

Posted on February 24, 2012 at 00:53

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Tesla DeLorean · ‎2012-02-23

Posted on February 24, 2012 at 01:09

I'm not sure I want to dig through all the register level stuff, that's why I use the library.

Consider for a moment what the level conversion circuit is doing, if for example it could back-drive the STM32's output, and how it's implemented. The problem sounds more electrical than software.

Consider if you have a common and effective ground.

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yooz · ‎2012-02-24

Posted on February 24, 2012 at 10:54

Thank you for the answer and suggestion, I will check once again the ground.

The level converter is KAmodLVC, if you are curious this is the product site:

http://kamami.com/index.php?ukey=product&productID=63662

And the manual (in polish, but includes schematic):

http://www.kamami.pl/dl/kamodlvc.pdf

So, let's go with the checking...