[time-nuts] FW: More serial ports in NanoBSD

[Willy Willemse]

Thank you Mike for your tips but NanoBSD in my situation is a read only system because its stored on a flash card and copied in to  RAM during the boot sequence.

I don't see any UART in the boot messages.

This the result of the # dmesg | grep -E "^sio[0-9]" command.

sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A, console
sio0: [FILTER]
sio1 at port 0x2f8-0x2ff irq 3 on isa0
sio1: type 16550A
sio1: [FILTER]

These are the only on board available serial communication channels.

Does have anyone else a useful tip?

Thanks.

Willy


-----Oorspronkelijk bericht-----
Van: Mike Cook [mailto:michael.cook at sfr.fr] 
Verzonden: donderdag 13 augustus 2015 23:14
Aan: Willy.Willemse at telenet.be
Onderwerp: Fwd: [time-nuts] More serial ports in NanoBSD

little correction. I don’t think you want  hint.uart.3.disabled=1 for obvious reasons

> Début du message réexpédié :
> 
> De: Mike Cook <michael.cook at sfr.fr>
> Objet: Rép : [time-nuts] More serial ports in NanoBSD
> Date: 13 août 2015 10:46:28 UTC+2
> À: Discussion of precise time and frequency measurement 
> <time-nuts at febo.com> Répondre à: Discussion of precise time and 
> frequency measurement <time-nuts at febo.com>
> 
> 
>> Le 12 août 2015 à 22:26, Willy Willemse <Willy.Willemse at telenet.be> a écrit :
>> 
>> Hi all,
>> 
>> 
>> 
>> I have a got a NanoBSD image with NTPns from Jason Rabel because I am 
>> a complete noob in FreeBSD, I tried to build an image but there were 
>> so many pitfalls for me that I asked Jason for a copy of his image.
>> 
>> 
>> 
>> It works fine on my soekris NET4501, but I want also use the time 
>> signal from the DCF-77 transmitter not just the oncore signal.
>> 
>> 
>> 
>> Therefore I bought an extra mini-PCI serial card
>> (http://www.benl.ebay.be/itm/320524491709?_trksid=p2057872.m2749.l264
>> 9 
>> <http://www.benl.ebay.be/itm/320524491709?_trksid=p2057872.m2749.l264
>> 9&ssPag eName=STRK%3AMEBIDX%3AIT> &ssPageName=STRK%3AMEBIDX%3AIT )
>> 
>> 
>> 
>> But the image doesn't support more than two serial ports. There is a 
>> way to add extra serial ports but this means that you have to build a new image.
> 
>  I find that a restriction on number hard to believe. 
> The uart driver supports 16950s. I actually installed and tested an Oxford PCI card in one of my 4801s and was able to use them OK.
> I can’t find my documentation of that test. It was back in 2011. But IIRC…...
> Do your boot messages detect the hardware?  You should see multiple 
> «uartx » , 0 and 1 are the basic devices. Any others will be your PCI based ports.
> If they are seen, record the PORT and IRQ associated. 
> In that case, go look at /boot/device.hints. See if you only uart.0 uart.1 then that may be your issue. 
> Add entries for the others.
> ex.
> hint.uart.2.at="isa"
> hint.uart.2.disabled="1"
> hint.uart.2.port="0x3E8"
> hint.uart.2.irq="5"
> hint.uart.3.at="isa"
> hint.uart.3.disabled="1"
> hint.uart.3.port="0x2E8"
> hint.uart.3.irq="9"
> 
> reboot
> Now, if you are lucky , when you look in /dev, you should see the tty and cua devices .
> 
> Hope that helps.
> 
>> And that is what I can't do in this moment. The closest I found from 
>> education in this neighborhood is a Linux course which I now follow.
>> 
>> 
>> 
>> My question is, if somebody from the Time-Nuts society have an image 
>> laying around which support a third and a fourth serial port?
>> 
>> 
>> 
>> Or even better show me the way to update my existing image with the 
>> extra ports.
>> 
>> 
>> 
>> Thanks.
>> 
>> 
>> 
>> Willy
>> 
>> 
>> 
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