[Arm-netbook] a10 module and jtag?

[Tom Cubie]

On 12/24/2011 11:37 AM, lkcl luke wrote:
> 2011/12/24 Henrik Nordström<henrik at henriknordstrom.net>:
>> lör 2011-12-24 klockan 02:16 +0000 skrev lkcl luke:
>>> 2011/12/23 Henrik Nordström<henrik at henriknordstrom.net>:
>>>> fre 2011-12-23 klockan 21:02 +0000 skrev lkcl luke:
>>>>> so, interestingly, it looks like there are 2 JTAG ports!
>>>> Any idea what they are used for?
>>>   *lol* no?
>> Sorry, bad wording. Any idea why there is two jtag interfaces? What do
>> each JTAG interface connect to?
>>
>> One quite likely goes to the Cortex A8, but the other?
>   sorry, henrik - still no idea!  there's absolutely nothing in the
> documentation.
>
>   l.
>
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The other jtag interface is for product debugging. If a product need to 
use jtag to debug, just need to change the sys_config file and set the 
jtag pin to sdcard pin(the same applied for uart0), then with a special 
sdio interface debug board we can debug the product, no disassembling 
needed.