UART Port

[BrainStormer]

Actually we have other uses for the uart port. like for a Vacume Florecent Display. (VFD)

But shell access is something we will want. I alread have access on my other renderers, My PH is the only one I don't have access on at this moment.

By security, do you mean keeping user apps from crashing the NMT or somthing else? I know there are 2 processors in the smp8634 one MIPS and the other one secure, how do they interface to each other? I would assume we wouldn't have access to the secure side of the chip.

[omnium]

Syabas Wrote:Please wait while we figure out how to provide you guys a Guest
telnet account to run and debug your apps (without breaking too
much of our security) :wink:

any news? Please read http://www.networkedmediatank.com/viewtopic.php?t=126 and give a statement.

[Josepascual]

Syabas Wrote:Hi guys,

Don't bother wasting your time on the UART, what you see is just
the bootloader dump. We've disabled console access via UART.

Please wait while we figure out how to provide you guys a Guest
telnet account to run and debug your apps (without breaking too
much of our security) :wink:

Executing your apps should be is easy by extending our browser
handling, but I think you guys will need a shell to debug.

Hi Syabas,

Although Console is not going out throught this UART, Will this uart be used as ttyS0 or ttyS1 in linux user space?

thank you,
regards
JP

[lundman]

Code:

Kernel command line: console=ttyS0
serial8250: ttyS0 at MMIO 0x0 (irq = 9) is a 16550A

According to dmesg.

[hamasaki]

Quote:hda: no 80 conductors cable, falling back to lower udma mode

Perhaps they should have shorted the pins needed to give 80conductor sense, that would allow the drive to run in UDMA5?

[n2vwz]

hamasaki Wrote:

Quote:hda: no 80 conductors cable, falling back to lower udma mode

Perhaps they should have shorted the pins needed to give 80conductor sense, that would allow the drive to run in UDMA5?

Do you think that the processor is fast enough to support UDMA5?

[hamasaki]

The whole point of "DMA" is "direct memory access", that is copying data between peripherals bypassing CPU.

Yes, for scenarios such as network, file copy from USB, etc, higher DMA mode would be beneficial.

[joshua_hj]

Dear all,

I'm having serious issues with my pch unit. I have a 500GB seagate barracuda connected to my pch and the unit it's constantly freezing on boot time. I have to keep trying and trying until it finally boots. Last time it took me about 30m to boot it successfully. I thought about connecting the UART port to see what was going on and was able to see some part of the boot process.

Code:

Processing dvi.bin (start: 0xac5b18b0, size: 0x00000040)
  Checking zboot file signature .. Not found.
  Trying xrpc_xload format .. Failed (not an xrpc_xload file)
  Execute final at 0x90020000 ..

That is the last message i can see on my serial console. Everything else that happens later it does not come out through the UART port. I've tried all the available firmware images and it always stops in the dvi.bin message. Even when the box boots ok i cannot see the kernel output. When it feezes i can still ping, so it's definetly when the kernel is loading (after the network init)

Is there anything else to do to see the kernel loading process, because that would help me solve my problem. At least I'd know where the kernel was craching.


BR, Herlander

[chory_1]

si nmt tiene un linux interno, deberiamos de exigir que liberen los codigos fuentes para que podamos realizar las mejoras que estimemos convenientes

por ejemplo:

a- subtitulos como imagen que no estan soportados
b- boot mas rapido
c- distintos tipos de fuentes para subtitulos
d- un menu de configuracion mas completo
e- acceso a log de errores para verificar el porque no se puede desplegar un archivo
f- seleccion de salida de video y audio mas completa y personalizable
g- habilitar modo de lectura raw en unidades de DVD y CD, para evitar bloqueos por pequeñas rayaduras
h- mayor velocidad de respuesta y opciones mientras de esta viendo un archivo multimedia.



gracias

[dc11ab]

chory_1,

There is already telnet access to this unit with root access, you don't need to go through UART for that.

Ya hay acceso telnet con root a este maquina, no se necesita entrar por la UART para eso. Busca el foro o mira en el wiki de lundman.net. Además ya hay Gaya Extended, Custom fonts, toolchain, fuse (aunque el fuse está en modo experimental) etc.

[chory_1]

dc11ab Wrote:chory_1,

There is already telnet access to this unit with root access, you don't need to go through UART for that.

Ya hay acceso telnet con root a este maquina, no se necesita entrar por la UART para eso. Busca el foro o mira en el wiki de lundman.net. Además ya hay Gaya Extended, Custom fonts, toolchain, fuse (aunque el fuse está en modo experimental) etc.

intentare entrar por telnet y buscare en la web mas informacion

gracias ¡¡¡

[shb]

your english is broken

[Sourcerer]

(11-28-2007 11:17 AM)Syabas Wrote:  Hi guys,

Don't bother wasting your time on the UART, what you see is just
the bootloader dump. We've disabled console access via UART.

When the user application support finally are in place I would like to use the serial port to connect and control external devices from my PCH. Do you think that will be possible?

What about the second UART, is it connected to the chip or not? I could easily add a second pin header if it's connected.

As for external devices there are several interesting things I'd like to connect:

1. A small PIC- or AVR-microprocessor controller for HD44780-compatible LCD-displays. You have some sort of "secret plan" for the ribbon cable connecter and LCD but you're way too slow. I wanted it yesterday! :-P

2. Cambridge Audio has a RS232-serial interface on all their surround receivers in the Azur serie.

Just to take the top two items from my list!

[mel]

(11-28-2007 11:17 AM)Syabas Wrote:  Hi guys,

Don't bother wasting your time on the UART, what you see is just
the bootloader dump. We've disabled console access via UART.

Please wait while we figure out how to provide you guys a Guest
telnet account to run and debug your apps (without breaking too
much of our security) :wink:

Executing your apps should be is easy by extending our browser
handling, but I think you guys will need a shell to debug.

is telnet coming anytime soon?

[dc11ab]

Telnet already exists, but not via UART. See wiki for more details.