Kinetis K60 Flexbus FB_RW signal problem

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Kinetis K60 Flexbus FB_RW signal problem

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monXii
Contributor III

Hello,

i want to use the Flexbus for external RAM and Flash..

 

After some hours work and measuring with scope i found out that FB_RW always stay in last state ..

But my RAM and Flash wants that this signal goes after each read/write cycle back to high, cause they need this rising and falling edges on write cycles..

 

Any ideas? I don't found any settings like this ..

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1 Solution
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monXii
Contributor III

Found the problem!

I had a wrong idea ... FB_R/W signal is ok!

 

My BGA RAM was not soldered correctly ..

 

Sorry :smileyhappy:

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544 Views
monXii
Contributor III

Found the problem!

I had a wrong idea ... FB_R/W signal is ok!

 

My BGA RAM was not soldered correctly ..

 

Sorry :smileyhappy:

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