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Blackfin boot process problem

Started by Unknown December 19, 2006
Hello,

 I've got an interest problem with BF532 boot. BF booted parallel with
an emulated flash. both modes (8 or 16 bit)  have same problem.
 I logged the BF bus, and the boot rom is running, but some differences
have been found:

 -in bootmode 01 (parallel async flash mode) boot rom reads the first
byte /word to determine the flash width. After a little wait founds,
that is normal. As ADI's engineering (EE-240) note shows , the reading
address is following in 8 bit mode: 0,1,2,3,4,5,6,7,8,9, and in 16 bit
mode : 0,0,1,1,2,2,3,3,4,4. On my board, BF addressing have some
difference: 0,0,1,2,3,4,5,6,7,8 in 8 bit mode, and 0,0,0,1,1,2,2,3,3,4
in 16 bit mode. I think this causing error in boot variables within
boot rom's data (for example, target address, byte count, and flags).

Question is what kind of problems may resulting this error ?

regards,
Jozsef

Problem solved!

regards,
Jozsef
bit_vector@tvn.hu =EDrta:
> Hello, > > I've got an interest problem with BF532 boot. BF booted parallel with > an emulated flash. both modes (8 or 16 bit) have same problem. > I logged the BF bus, and the boot rom is running, but some differences > have been found: > > -in bootmode 01 (parallel async flash mode) boot rom reads the first > byte /word to determine the flash width. After a little wait founds, > that is normal. As ADI's engineering (EE-240) note shows , the reading > address is following in 8 bit mode: 0,1,2,3,4,5,6,7,8,9, and in 16 bit > mode : 0,0,1,1,2,2,3,3,4,4. On my board, BF addressing have some > difference: 0,0,1,2,3,4,5,6,7,8 in 8 bit mode, and 0,0,0,1,1,2,2,3,3,4 > in 16 bit mode. I think this causing error in boot variables within > boot rom's data (for example, target address, byte count, and flags). > > Question is what kind of problems may resulting this error ? >=20 > regards, > Jozsef
Jozsef wrote:
> Problem solved!
How? ... Jerry -- Engineering is the art of making what you want from things you can get. ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
"Jerry Avins" <jya@ieee.org> escribi&#2013265923; en el mensaje 
news:c6SdndgRSZTFxhXYnZ2dnUVZ_rjinZ2d@rcn.net...
> Jozsef wrote: >> Problem solved! > > How? >
I second Jerry&#2013266100;s question: how? Chances are that many readers here are itnerested in the solution... me, for instance. Regards. -- Posted via a free Usenet account from http://www.teranews.com