@Rob

No RAM?? It seems to me there is one DDR RAM slot in use. This is shown on the video , albeit not that clearly and on the picture I have with the CPU fan spinning as well.

Trevor

_________________
No, I don't need no reason, I'm just breezin'

@Rob

I woke up to the realisation that I had completely misunderstood you

No problem, my fault.

@wawa
Why do you need an OS running ojn the main CPU for the XMOS to do something useful?

_________________
This weeks pet peeve:
Using "voltage" instead of "potential", which leads to inventing new words like "amperage" instead of "current" (I, measured in A) or possible "charge" (amperehours, Ah or Coulomb, C). Sometimes I don't even know what people mean.

@wawa

"you think nemo board was debugged by varisys using os4?"

Ofcourse not.
But I'm pretty sure there is no PPC Linux SDK for the xmos either and especially I'm sure that there is no SDK that can comminicate directly between PA6T and xena. (there will be)
So, that xmos acting as JTAG-USB converter is needed for now.

Last edited by KimmoK on 09-Mar-2012 at 09:42 AM.

_________________
- KimmoK
// For freedom, for honor, for AMIGA
//
// Thing that I should find more time for: CC64 - 64bit Community Computer?

Given the AXK SoC inludes 2 Meg L2 DDR2, whats the difficulty in getting the system into a running state, as in Kickstart, ExecNG and core OS libraries, before LoadWB would be started, and is this possible under Standby PSU power also, so you could have say A500 level of operation without teh machine having to be switched on?

Given there is noGPU or other video hardware on the SoC, how small a double loop would be needed to bit bang a couple of pins on a portat teh speed required to generate a basic 4 colour composite video signal so we could have at least Pre tweak and enhancement Workbench for use? Even a 1 bit screen would be better than nothing allowing console and text interfacing.

If a PIC can bit bang a monochrome video signal for using text over Internet, then this should be the minimum considered for any present, or modern tech based machine, not just a serial port?

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The older and more respected a scientist is, the longer it takes to prove him wrong.

@RodTerl

i think you need just any amount of ram fitted even to reach a500 level of operation. without ram any board will just be a brain dead device even if consuming current.

@olegil

Quote:

@wawa Why do you need an OS running ojn the main CPU for the XMOS to do something useful?

my question is whether it is onboard xmos chip performing the operation, as it would have to be in initialized and controlled somehow (requirement might be a nemo running operating system like linux, where xmos tools are available i take it), or is it just the external xmos chip on the plugged board which is visible on the video.

if xorro is controlled by external xmos and nemo board just in an uninitialized state (without running os) only forwarding current to the said devices, then the video clearly doesnt demonstrate that and how onboard xmos is working, only that xorro bus can be talked to from that external xmos dev board.

clear now?

@wawa

The external XMOS shown is the programmer. Why is this so difficult to accept?

_________________
This weeks pet peeve:
Using "voltage" instead of "potential", which leads to inventing new words like "amperage" instead of "current" (I, measured in A) or possible "charge" (amperehours, Ah or Coulomb, C). Sometimes I don't even know what people mean.

@olegil

im not assuming anything, but since there is no clear explanation im just asking questions. why is external programming device (including its own xmos chip) neccassary to demonstrate xorro working? nemo is apparently able to run linux and linux should be able to run xmos software (compiled for ppc). so why is xorro apparently controlled via external link and xmos chip instead of native via nemo/linux distro and the onboard xmos?

@wawa

>why is external programming device (including its own xmos chip) neccassary to demonstrate xorro working?

There is no SDK available to do it from the PA6T side.

> nemo is apparently able to run linux and linux should be able to run xmos software (compiled for ppc).

+ it would need drivers for the PA6T-xena connection

> so why is xorro apparently controlled via external link

Xorro is controlled by xena.
The external chip is only USB-JTAG bridge.

> and xmos chip instead of native via nemo/linux distro and the onboard xmos?

Onboard xmos/xena is used & SDK to run on PA6T is not yet ready.

I believe it's not possible to "lit those leds" without xena doing it.

Last edited by KimmoK on 09-Mar-2012 at 12:54 PM.

_________________
- KimmoK
// For freedom, for honor, for AMIGA
//
// Thing that I should find more time for: CC64 - 64bit Community Computer?

@KimmoK

possibly. on the other hand it could be that the xorro is just controlled via usb-jtag-xmos, why would it need to go via xena yet? its just left pretty much open to speculations as there is no clear comment on it.

@TrevorDick

i'm going to ignore most of the comments in this thread, but did want to say: phwoar! this board is exactly what i was hoping for -- it will certainly be easier than wiring a breadboard to a PCIe mechanical as i had planned. any idea if this will be available around the time of the X1000 general release?

-- eliyahu

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@wawa

Xorro data pins are only available via xena.
http://a-eon.com/pics/xena.jpg

_________________
- KimmoK
// For freedom, for honor, for AMIGA
//
// Thing that I should find more time for: CC64 - 64bit Community Computer?

So what kind of card could you have?

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