On Mon, Oct 06, 2008 at 06:39:24PM -0400, Duane Ellis wrote:
> somebody>  I'm not convinced that your JTAG chain is configured correctly
> somebody> or that your JTAG interface is able to communicate with the 
> device.
> somebody> ARM11 is finicky
> 
> I believe this is exactly the ARM 1176 chip.

Thanks, this is a big help. It seems either the manual or the datasheet
is wrong... The setting for what should be the XDBGSEL=1 is giving me the
ARM11 instead of the boundary scan... 

FYI:
Info:   JTAG device found: 0x2b900f0f (Manufacturer: 0x787, Part: 0xb900, 
Version: 0x2)
Info:   JTAG device found: 0x07b76f0f (Manufacturer: 0x787, Part: 0x7b76, 
Version: 0x0)
Info:   found ARM1176
 
> Here is why.
> 
>  > Info: JTAG device found: 0x2b900f0f (Manufacturer: 0x787, Part: 
> 0xb900, Version: 0x2)
> 
> Rev:   2
> Mfg:   787 is ARM.
> Part: B90
> 
> I believe is the on-chip ETM module.
> 
> Arm DIA0099C - section 2.2.3 defines bits [27], and [26:24]
> 
> B = 1011 => ARM Embedded Trace buffer(2).
> 
> I do not know what the '90' means.
> 
> >  Info:   JTAG device found: 0x07b76f0f (Manufacturer: 0x787, Part: 0x7b76, 
> > Version: 0x0)
> 
> This is clearly the ARM1176.
> 
>     See ARM DDI0333G - Section 14.6.2 - page 14-10.
> 
>     MFG: 787 - is ARM.
>     Part: B76 = (B = 11 hex, thus 1176)
>     It is revision 0.
> 
> This other number is present when the "xdbg" pin is set - placing the 
> chip in "boundary scan mode"
> 
>  > Info: JTAG device found: 0x00eb509d (Manufacturer: 0x04e, Part: 
> 0x0eb5, Version: 0x0)
> 
> I'll bet - MFG 4e = samsung.
> 
> -Duane.
> 
> 
> 
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-- 
-- 
Ben

Q:      What's a light-year?
A:      One-third less calories than a regular year.

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