ERL second serial port?

[Joe Holden]

iirc the holes on the board are for ejtag, I might be wrong though - 
been a while since I've even looked at an ERL

On 24/02/2015 05:51, Kurt Lidl wrote:
> Greetings all.
>
> I noticed on my ERL, which has a fairly recent build of HEAD
> on it (r279016M), that a two serial ports are probed during
> the kernel's autoconfiguration.
>
> uart1: <Octeon-16550 channel 1> on obio0
> uart1: console (115200,n,8,1)
> uart1: fast interrupt
> uart0: <Octeon-16550 channel 0> on obio0
> uart0: console (115200,n,8,1)
> uart0: fast interrupt
>
> Obviously, one of these is the serial port console of the machine.
>
> I was wondering if the second serial port was semi-easily
> accessible.  Examining the motherboard of the ERL closely, there's
> a place where some header pins could be soldered in - there are just
> empty through-holes on the PCB.
>
> Does anybody know what pins from what devices are available on
> these holes?  I'd like to be able to access the second serial
> port on the machine, and it seems not unlikely that a few of
> the uart's signals might show up on the headers that could be
> soldered into the holes.
>
> Thanks for any information.
>
> -Kurt
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