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BF527 and booting from SPI memory

Question asked by vito on Mar 13, 2013
Latest reply on Apr 4, 2013 by demonb

Hi all,

 

I have a BF527 with SPI memory. I tried to follow schematics and pullup settings from EZ-Lite, but what is strange

is Blackfin's behavior:

- sometimes it boots...

- soemtimes it does not....; it hangs.

 

I have check the board and everything seems to be fine.

What I have noticed is that adding capacitance to SPI_CLK improves the problem.

I scoped the SPI signals - and there doesn't seem to be any problem with SPI.

 

Has anyone experienced a similar problem with external SPI memory?

 

Thanks and best regards,

vito

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