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Re: Xena questions
Quite a regular
Quite a regular


@Raziel

I have no intention to create something commercial or open source.

The interface is completely different from what is available on your X1000 so what I am creating is X5000 exclusive anyways.

The A1222 doesn't have a xorro slot and the XMOS XS1 is EOL. If a future next gen amiga will happen and still have a xorro slot, the xmos binary and probably the interface won't be compatible anyways.

Yet, xena offers a "low cost" way to expand the X5000 with custom homemade solutions since it circumvents the PCIe interface and includes a 1000MIPS cpu.

Therefore it would be nice if future A1s would at least offer a (buffered) LBC interface.

Anyways, I've already learned a lot about the features and limitations of the xena interface and XMOS chip. Unfortunately, I have to work around some shortcomings as a result of the implementation.

So I am still in the discovery phase.

Next step is to transform my Xenaprobe into a xena device driver which contains the xmos loader and a configurable communication interface.

After that I'm going to port the C64 SID player with a redirect of the synth samples to AHI as a proof of concept.

If all checks out then I'll start a first hardware project.
This will be a high end audio card with
- high quality DACs
- High Quality ADCs
- High quality OPAMPs
- S/PDIF out
- wave blaster interface (I still have the DB50XG, but there are also new tiny gs wave table synthesizers .


The XMOS can do:
- x Band equaliser
- Audio effects
- SRC
- channel upmixing (eg 2.0 -> 5.1)
- Virtual HP surround
- x ch input audio digital mixing
- multichannel -> S/PDIF (a52 encoder)
- Maybe keep the SID player for fun

I order to connect all the DACs ADCs, I'll need a CPLD/small FPGA to provide the I2S interfaces. It would be a waste to use xmos threads for this pupose


Edited by geennaam on 2023/12/17 15:51:37
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Re: YT stopped working with Odyssey
Quite a regular
Quite a regular


This is a YT thread. But since we are off topic:

aiostreams youtube stopped working as well. You can still search for videos but the links don't play.

They do play in YT though.

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Re: Xena questions
Quite a regular
Quite a regular


The Xena interface can manage overall around 10MB/s half duplex at a first attempt.
This is the result of a simple write full (CPU), read empty (xmos) interface.

With a streaming ping-pong buffer, the interface will be able to manage close to 20MB/s half duplex.

Edit1:
~17MByte/s with a pingpong buffer. Not bad.

Edit2:
~20MByte/s after some optimization.


Edited by geennaam on 2023/12/16 14:24:14
Edited by geennaam on 2023/12/17 14:42:44
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Re: Who is getting the A1222 Plus?
Quite a regular
Quite a regular


@outlawal2

I think that you need to contact Laurant from AAA technology in Luxembourg.

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Re: SketchBlock XMas Card Video 2023
Quite a regular
Quite a regular


Merry Xmas. Great to see what still can be done with our little system

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Re: X5000 MCU Debug Cable
Quite a regular
Quite a regular


@khayoz

Jtag between cpld and xmos works well.

In case of an external debugger, the cpld needs to hi-Z some jtag signals and does buffer TDI as well.

I am afraid that this was never properly tested

If possible, you could try to lower jtag clock speed.

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Re: X5000 MCU Debug Cable
Quite a regular
Quite a regular


@khayoz

Not exactly sure what you did. This dongle is a xtag debugger which you've connected to your xtag header on de X5000?

And then tried to do some development with xTimeComposer?

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Re: Who is getting the A1222 Plus?
Quite a regular
Quite a regular


If I would not have owned a X5000, I would have bought the A1222 for sure. In the same way that if I would have been able to buy an Amiga 4000 as teenager, I would not have owned an Amiga 1200.

The A1222 is quite capable for everything OS4.

For me, EUR 1000 for the third fastest Amiga ever build sounds like a bargain. Especially when you consider the price of ancient big box Amigas. Even today.

If multicore would ever materialize, it will consolidate its third place even further.

But unfortunately we live in a different world where aliexpress and rpi seems to be the benchmark for anything Amiga that is not 68k based.

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Re: AmigaOne X5000 PCIe Slot Questions
Quite a regular
Quite a regular


@AmigaSociety

Yes, it is a bit cryptic. The thickness of the line to the x4 slot already suggests multiple lanes. Compared to the thin line of the x1 slots.

I know for sure because I use the x4 slot for my Nvme driver and can confirm that indeed 4 lanes are connected. But you can also check out the connector pinouts. There's only a remark for the x16 slot that lanes 4-15 are not connected. There is no such remark for the x4 slot.

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Re: AmigaOne X5000 PCIe Slot Questions
Quite a regular
Quite a regular


@AmigaSociety

If you want to know something technical about your X5000 then you could also check out the X5000 TRM yourself. If you don't have it then you can download it here: https://amigaone.files.wordpress.com/2 ... /trm_cyrus_1-1-1_aeon.pdf

But to answer your questions:

1. The X5000 x16 slot is directly connected to the P50x0 with 4 PCIe2.0 lanes. This means a bandwidth of 2000MB/s

2. The x4 slot is connected with 4 PCIe2.0 lanes to a PCIe switch. Which is in turn connected with 4 PCIe2.0 lanes to the P50x0. So also 2000MB/s. But a bit higher latency due to the switch.

"Just" 2000MB/s is no issue at all. Various tests on PC websites reveal that the difference in fps between PCIe2.0 x4 (2GB/s) and PCIe3.0 x16 (~16GB/s) is just a few %.

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Re: wb2filer v0.5
Quite a regular
Quite a regular


@msteed

Quote:
There's even less information available about what Filer is doing than there is about Workbench.


Filer is open source: http://openamiga.org/?function=viewproject&projectid=20

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Re: AmigaOne X5K Video Tests - from HD7750 to RX580
Quite a regular
Quite a regular


@AmigaSociety

Nice vid!

You should also check out your "Power" pref. This preference tool allows you to switch the card between high and low power mode. High Power means more performance.

My setting is saved to High power mode. But for some reason, it fails to apply High power mode after a reboot.
Kas1e came up with a fix by forcing the Power pref to run once after reboot with adding the following line to the the user-startup:
Make sure that RX power mode is always applied on a boot 
Run 
>NIL: *>NILsys:Prefs/Power QUIET


It looks like your power pref is set a low.
I can run the same voxel edges at 120-200 fps in the preview window (vsync disabled). And about 20pfs fullscreen

My personal favourite shader is multipass->Full screen radial blurr. This one runs at ~80fps in full screen mode.


Edited by geennaam on 2023/12/3 10:13:52
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Re: Lost 2560x1440 with Radeon RX580 on X5000
Quite a regular
Quite a regular


@AmigaSociety

I am away from my X5000 but I can remember that somehow my setup was also not able to display the resolution that I want. Iirc this has to do with some limitation within the gfx library. For some weird reason, my 3440x1440 only shows up at 61Hz and not at 60 Hz. So maybe you play with the refresh rate for your 2.5k resolution as well.

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Re: Upgrading from Radeon HD7750 to RX580 on X5000
Quite a regular
Quite a regular


@AmigaSociety

When I switch between monitor or between HD and RX card, I do not have to update the monitor file

Make sure that the monitor file uses DDC for the screenmodes. Then the RX driver will be able to calculate applicable clocks frequencies.

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Re: Falling In Love With The Amiga, AGAIN! - video
Quite a regular
Quite a regular


@trixie

Quote:
No, I don't think so.


Amiwest 2:37:05

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Re: Dual Video Card X5000 - both Amiga OS & MorphOS
Quite a regular
Quite a regular


@AmigaSociety

Reasons could be that the RX 580 has more gfx memory and is about 2.5 times faster. If you don't care for those numbers then the RX 550 is just fine.

Of course there are not much games yet where you would notice the difference except for DOOM3 or Quake 4 maybe.

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Re: Running my OS4 games on QEmu
Quite a regular
Quite a regular


Infighting in the qemu subscene.

Now you have finished you initiation rituals.

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Re: Do we have fast, accelerated, bug-free, supporting scaling SNES emulator ?
Quite a regular
Quite a regular


@kas1e

I alway use -O3. Never experienced any issue with it. But sometimes you need to use volatile to prevent the compiler from over-optimizing volatile code.

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Re: Max. partition size in AmigaOS4.1 (SFS2 handler)
Quite a regular
Quite a regular


@joerg

Quote:
Did you test it with and without diskcache.library?


Without diskcache of course. I only have SSDs.

But as final test I've also enabled diskcache in my kicklayout. Limit is the same. But at least now I can start the Spencer demo. So the truncated partition is usable.

Now this is really it. Sorry for those who are stuck with sfs2. But I am not going to spend more time on it.

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Re: Max. partition size in AmigaOS4.1 (SFS2 handler)
Quite a regular
Quite a regular


@joerg

Quote:
I wrote that the file systems don't use the results from it, not that they don't send the TD_GETGEOMETRY command.


Ok understood. I'll stop looking into it further because I cannot fix SFS2 itself.

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