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BF547M and SPI Boot

Question asked by sbabcock on Oct 27, 2014
Latest reply on Nov 3, 2014 by CCL

Hello All,

 

I am attempting to boot an BF547M DSP from an M25P64 SPI flash. I am able to read/write/erase this flash without issue.

The BMODE = 0011. I have put a probe on the flash and have been able to see that the DSP will attempt to read from the

flash with an 0x03 followed with a number of 0x00 bytes. The MISO seems to contain the correct values from the flash.

After a few bytes the DSP HALTs. Attached is a scope shot of what the DSP is reading in.

 

Anyone have any suggestions on other things to try?

 

Thank you,

-Stover

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