LPC55S28 SPI flexcomm 7 stalling

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LPC55S28 SPI flexcomm 7 stalling

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Contributor I

Hello,

I'm trying to get SPI working on flexcom 7. So far it is working on speeds below 2MHz. If i try to ram up the speed the lines start stalling. The processor i'm using is the LPC55S28. Can somebody give me some pointers to look at what i'm doing wrong. Thanks in advance. Below is an images from my logic analyzer.

chiel_timmerman_0-1600786694565.png

 

Chiel

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NXP TechSupport
NXP TechSupport

Hello Chiel

 

I suggest you refer the chapter 35.7.8 of the LPC55S28 User Manual, there you can find detailed information about the stall.

 

Let me know if this is helpful, if you have more questions do not hesitate to ask me.

Best regards,

Omar

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