ColourCard (Gold) on the Archimedes

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steve3000
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ColourCard (Gold) on the Archimedes

Postby steve3000 » Wed Aug 02, 2017 8:26 am

Does anyone have experience of using a ColourCard/ColourCard Gold?

I've been experimenting trying to get my newly acquired ColourCard Gold to work on my A5000, but am struggling. It seems most of the pre-defined new screen MODEs are either of non-standard shapes or refresh rates and so are immediately rejected by my (usually very compliant) LCD monitor.

Image

I've tried both the "AcornMulti" and "Taxan795" MODE definition modules (and reconfigured the "CCmonitortype" and "CCsyncs" correctly I think), but so far only MODEs 112-114 (1024x768, 75Hz) display correctly on my LCD monitor - and while these are great, I'm sure the card can do more.

Even the 800x600 and 640x480 modes have no display, which is why I'm assuming the refresh rate is too high. The manual (as downloaded from Chris' Acorns here - which appears to be the non-Gold ColourCard manual) doesn't list the refresh rates for the new MODEs, or any Technical details on how to redefine MODEs on the card, and the software discs don't contain any MODE redefinition software either.

Also, I can't get the pass-though of non-CC modes working either. (I've plugged the patch lead from the computer RGB socket through to the RGB IN socket on the card...but none of the Acorn MODEs 0-31 display anything).

If anyone has any hints & tips around setting up this card please let me know - and/or if anyone has any technical details about how to define new MODEs that would be really useful, as I'd like to try defining some widescreen MODEs...

RobC
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Re: ColourCard (Gold) on the Archimedes

Postby RobC » Wed Aug 02, 2017 5:53 pm

I've got one on my A540 but am using a big CRT rather than an LCD. It did take a lot of playing around with the ccmonitortype, ccsync and sync settings before I got what I think is the full set of modes. Pretty sure I'm using the Acorn module as I didn't get much joy with the Taxan one.

I have had it connected to an LCD (Dell 21") and it worked okay but the range of modes wasn't as good.

From memory, the only difference with the Gold is that it has (the possibly updated) modules in ROM. There's no hardware difference as I have another card that was upgraded to a Gold by changing the EPROM.

I can have a look at my setup if it would help.

steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Thu Aug 03, 2017 1:58 pm

Hi Rob, thanks for the offer - next time you're running your A540, please do post up the CCmonitortype, CCsyncs, etc. settings you're using. :) Also, have you been able to get the pass-through modes working OK?

I'll post up my settings at the weekend when I'm back home, but it did take a lot of playing around to get any output that was visible on my LCD monitor. I think all the MODEs are being processed by the card - mainly because I get different error reports from the LCD for some of the different resolutions that don't actually display anything usable (usually changing between "Check cable" - accompanied by a very flickering image of the desktop, and "Resolution not supported", with occasional "No signal"). MODEs 112-114 (1024x768), however, are perfectly stable and display perfectly - so the card is definitely OK.

As I understand it, the "ColourCard Gold" was a ROM upgrade, providing the two mode modules (AcornMulti and Taxan795) on ROM, along with key selling point - the updated drivers and configuration options enabling the functional 15bpp desktop, which was not possible on the original card (as confirmed in the manual on Chris' Acorns).

However, as I can't access any of the smaller screen modes on my monitor, I've not been able to get the 15bpp desktop working - have you had any success?

RobC
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Re: ColourCard (Gold) on the Archimedes

Postby RobC » Thu Aug 03, 2017 7:26 pm

I'll try to power up the A540 later tonight. I'll dump out my settings and try to get it talking to my LCD.

Not sure about pass-thru mode but I definitely see the standard/non-colour card modes as I think they show up in yellow on the mode selector (with the additional colour card modes being green).

Also, I definitely have the 32K colour mode working on the desktop with my CRT as I've used it to display the Artworks apple. The resolution isn't that high but it still looks impressive.

The other thing I've used with it is VividGold - I think you can still download it for free:
http://www.apdl.org.uk/isvproducts/vivid.htm

steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Thu Aug 03, 2017 11:08 pm

Great - and thanks for the tip about VividGold. Looks like they defined some new screen modes for the ColourCard - this will be really useful to reverse engineer, if it turns out no one has kept any technical information about defining modes on the ColourCard... (something for a rainy weekend!)

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Re: ColourCard (Gold) on the Archimedes

Postby bear » Thu Aug 03, 2017 11:48 pm

I haven't had any luck with the passthrough on mine (in an A5000). My LCD works fine on the onboard video in the normal modes, and fine on the ColorCard Gold output, in the ColorCard Gold modes, but not on the ColorCard Gold output in the normal modes with a passthrough cable connected. I am not sure why this should be so. My first guess was that the passthrough cable is meant to be wired a little differently, somehow, from a "standard" VGA cable. But I haven't proven/disproven this yet.

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1024MAK
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Re: ColourCard (Gold) on the Archimedes

Postby 1024MAK » Fri Aug 04, 2017 8:15 am

Because a VGA LCD monitor samples the input and converts the analogue signal to digital data, most use the H and V syncs to work out which of the officially supported VGA, SVGA (etc) video signals is being sent to it. If it cannot find a match between the input signals and the stored settings, you get an error screen.

:arrow: By officially supported, I mean, supported officially by the monitor manufacturer.

Some LCD monitors have a greater tolerance for slightly out of specification signals than others.

Generally, CRT VGA monitors are more flexible in this regard. But even here, there is considerable differences between makes and even models from the same brand.

So see if the ColourCard comes close to or matches any of the official VGA and SVGA specifications.

This web page may help :wink:

Mark
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steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Fri Aug 04, 2017 8:51 am

Useful information, thanks Mark. Unfortunately the first problem is lack of information - the Colourcard manual doesn't give either the V or H refresh rates. So although most of the resolutions sound fine (800x600, 640x480, 1024x768, 1280x1024...along with a few less common ones) the only one I've had success with on my LCD is 1024x768, which is at 75Hz.

Having created custom resolutions for my LCD on the RiscPC and for LCDgamemodes, I know it has an upper limit of around 75Hz vsync, above which it doesn't accept any input. It's also very fussy about the sync polarity, but generally fairly accepting of H sync range.

The CC manual hints several times that it avoids flicker by using Vsync rates above 70Hz, so I suspect the card hasn't followed VESA specific definitions, and is maximising Vsync rate to eliminate flicker on CRT screens... Fine for most CRTs, as you say, but not good for compatibility with modern LCDs.

steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Fri Aug 04, 2017 8:57 am

bear wrote:I haven't had any luck with the passthrough on mine (in an A5000).

I'm thinking there might be some re-processing of the sync signals, perhaps changing the polarity to match the CC configuration?...or, as you say, it might need a re-wired cable specific for the pass through. I think the card was originally supplied with the pass through cable, so this is quite possible...
bear wrote:My LCD works fine on the onboard video in the normal modes, and fine on the ColorCard Gold output, in the ColorCard Gold modes

That is very encouraging to hear you've got the CC modes working on LCD. Which CC mode module is that with? And does your LCD report the V or H sync values for the CC modes? - This would be really helpful information to pin down the problem I'm having.

RobC
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Re: ColourCard (Gold) on the Archimedes

Postby RobC » Fri Aug 04, 2017 5:01 pm

Powered up my A540 this evening and recorded my settings (with CRT). They are:

Code: Select all

MonitorType 4
Sync 0
CCSyncs 4
CCRefresh Low
CCMonitorType 1
CC16bppDesktop on


As I thought, I'm using the AcornMulti module rather than the Taxan one. It looks like VividGold also installs modules for specific modes so it may well be that iSV knew how to drive the colour card...

Also, the standard modes (e.g. 640 x 512) work - these show up as green in the colour card utility.

Thinking about Steve's theory about the colour card maximising the refresh rate, here are the refresh rates for some of the modes I have available:
1152 x 848 x 70Hz
1600 x 600 x 81Hz
1280 x 768 x 75Hz
1024 x 768 x 74Hz
1280 x 1024 x 60Hz

I'll try it with my LCD monitor either later tonight or tomorrow.

steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Fri Aug 04, 2017 6:48 pm

Brilliant, thanks Rob.

I've thought the same about the iSV modules...and so I reverse engineered one this afternoon :) Now I've got a fair idea how to add new modes to the card :mrgreen:

It looks like it uses standard VIDC and RISC OS mode variable settings, set to a low refresh rate, along with a third set of parameters presumably in the register format of the colourcard graphics chip...

With a bit further digging it looks like the Colourcard users an INMOS G332 chip, and the parameters I've identified in the iSV mode files seem to fit with the (rather minimal) register information I've found about the G332...

Still need some more investigation to ensure I fully understand the G332, and can correctly calculate V and H sync rates (so this information, as returned from your monitor will be really useful).

RobC
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Re: ColourCard (Gold) on the Archimedes

Postby RobC » Fri Aug 04, 2017 7:19 pm

steve3000 wrote:I've thought the same about the iSV modules...and so I reverse engineered one this afternoon Now I've got a fair idea how to add new modes to the card

That's awesome!

steve3000 wrote:Still need some more investigation to ensure I fully understand the G332, and can correctly calculate V and H sync rates (so this information, as returned from your monitor will be really useful).


We were obviously thinking along the same lines - in case you haven't found it, there's a brief description of the G332 here (page 139 onwards):
http://bitsavers.informatik.uni-stuttgart.de/pdf/inmos/graphics/72-TRN-204-01_Graphics_Databook_Second_Edition_1990.pdf

It ties in with the brief mention of register A sync settings in the colour card manual...

I'm getting the refresh rates from the "mode info" section of the colour card palette utility - if you need me to examine any other modes, just give me a shout.

steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Fri Aug 04, 2017 10:10 pm

Thanks for the link Rob, exactly what I was looking for!

I had been delving into the only source code I could find for programming the G332 (here) but the data book alongside the source certainly makes life a lot easier!

If you could post up the colourcard vsync rate for 800x600 at 16 and 256 colours, that would help, as I'll be starting off by trying to get this mode to run through the colourcard on my LCD. After that, I hope to have the ability to generate any screen mode and colour depth that can fit into 480kb (the limit under VIDC 1)...including some widescreen modes.

I'm away from the computer for a few days but hope to have something running soon.

RobC
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Re: ColourCard (Gold) on the Archimedes

Postby RobC » Sat Aug 05, 2017 8:15 am

steve3000 wrote:If you could post up the colourcard vsync rate for 800x600 at 16 and 256 colours, that would help, as I'll be starting off by trying to get this mode to run through the colourcard on my LCD. After that, I hope to have the ability to generate any screen mode and colour depth that can fit into 480kb (the limit under VIDC 1)...including some widescreen modes. I'm away from the computer for a few days but hope to have something running soon.

That would be excellent.

The 800 x 600 modes show up in green (indicating a standard mode?) but my monitor says 55.5Khz, 89Hz for all colour depths. I guess this shows that the colour card is tries to get the frame rate as high as possible in all modes...

steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Sat Aug 05, 2017 10:34 pm

Rob, based on the 800x600 rates you gave above, I've determined the base frequency of the clock feed to the G332 on the ColourCard as 6MHz, this is then multiplied up by a PLL multiplier to set the pixel rate for each mode definition.

To check my calculation of the base frequency, I've calculated the line rates and frame rates for two of the ColourCard mode definitions below. Can you check what your monitor reports for these modes?

1024x768 (MODE 112)
line rate = 58.9kHz
frame rate = 73.9Hz

1280x1024 (MODE 123)
line rate = 63.3kHz
frame rate = 60Hz

RobC
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Re: ColourCard (Gold) on the Archimedes

Postby RobC » Sun Aug 06, 2017 8:05 am

They look spot on Steve. The line rates match exactly and, as I only get the frame rates to the nearest unit, 1024 x 768 says 74Hz.

steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Sun Aug 06, 2017 8:14 am

Excellent. So I should now have what I need to programme this, just need to put it into practice :)

RobC
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Re: ColourCard (Gold) on the Archimedes

Postby RobC » Sun Aug 06, 2017 8:37 am

If you need me to test anything, just let me know.

steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Sun Aug 06, 2017 7:33 pm

RobC wrote:If you need me to test anything, just let me know.

:)

Any chance you could post up the line rate and frame rate for the 15bpp 576x424 iSV mode?

15 bpp modes are defined differently to the others, I think I've worked them out - but I'm getting different line rates and frame rates compared to the equivalent 576x424 iSV mode in 256 or 16 colours.

RobC
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Re: ColourCard (Gold) on the Archimedes

Postby RobC » Sun Aug 06, 2017 9:53 pm

Sorry for not replying sooner - been busy this evening.

Monitor says 36.6KHz / 82Hz for 32K colours, 40.3KHz / 90Hz for 256 colours and below.

steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Sun Aug 06, 2017 11:41 pm

RobC wrote:Monitor says 36.6KHz / 82Hz for 32K colours, 40.3KHz / 90Hz for 256 colours and below.

Thanks! This compares very nicely to my calculations :)
Image
I'll finalise my table of all data for the iSV mode definitions tomorrow, and post this up here. I'll then complete my list of the AcornMulti and Taxan795 mode definitions data and post those up... Then start work on creating some VESA compatible definitions for ColourCard. :)

FYI - interesting to note that (at least on my ColourCard, pictured in the first post) the graphics chip is the INMOS G332F-85, which per the data manual is rated at up to 85MHz pixel rate. From my first look at the AcornMulti mode definitions, it seems these go up to 84MHz pixel rate, just within that limit. However looking at the default 'hi-end' monitor "Taxan795" definitions, these use up to 120MHz pixel rate, effectively overclocking the G332F-85.

Higher rated versions of the G332 chip were available at the time, I wonder if any were supplied on ColourCards, or if this 'out of the box' overclocked setup was actually intended.
Attachments
isv576x424.png

RobC
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Re: ColourCard (Gold) on the Archimedes

Postby RobC » Mon Aug 07, 2017 9:35 am

Excellent. Happy to verify the tables if you need me to.

steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Mon Aug 07, 2017 11:49 pm

Here's my decoded information for the full range of iSV VividGold screen modes for the ColourCard Gold.

If anyone spots errors here, let me know and I'll correct the table :)

Code: Select all

MODE   Logical    Physical   bpp   Video    Hfreq    FPS
no.    res.       X     Y          (MHz)    (kHz)    (Hz)
18    640x512     640   512    1    36      42.85    80.3
19    640x512     640   512    2    36      42.85    80.3
20    640x512     640   512    4    36      42.85    80.3
21    640x512     640   512    8    36      42.85    80.3
65    640x512     640   256   15    48      29.41   105.7
29    800x600     800   600    1    60      55.55    89.3
30    800x600     800   600    2    60      55.55    89.3
31    800x600     800   600    4    60      55.55    89.3
32    800x600     800   600    8    60      55.55    89.3
66    800x600     800   304   15    60      29.52    90.6
67   2304x1696   1152   848    1    90      61.81    70.3
68   2304x1696   1152   848    2    90      61.81    70.3
69   2304x1696   1152   848    4    90      61.81    70.3
70   1088x880    1088   880    1    78      57.35    63.6
71   1088x880    1088   880    2    78      57.35    63.6
72   1088x880    1088   880    4    78      57.35    63.6
73   1088x880    1088   440    8    60      44.11    95.5
74   1088x880     544   440   15    60      44.11    95.5
75    640x480     640   480    1    36      42.85    85.4
76    640x480     640   480    2    36      42.85    85.4
77    640x480     640   480    4    36      42.85    85.4
78    640x480     640   480    8    36      42.85    85.4
79    640x480     640   240   15    48      28.03   107.0
80   1280x768    1280   768    1   102      60.42    75.8
81   1280x768    1280   768    2   102      60.42    75.8
82   1280x768    1280   768    4   102      60.42    75.8
83   1280x768    1280   384    8    72      42.65   103.2
84   1280x768     640   384   15    72      42.65   103.2
85   1600x600    1600   600    1   102      50.79    81.4
86   1600x600    1600   600    2   102      50.79    81.4
87   1600x600    1600   600    4   102      50.79    81.4
88   1280x480    1280   480    1    84      49.76    98.7
89   1280x480    1280   480    2    84      49.76    98.7
90   1280x480    1280   480    4    84      49.76    98.7
91   1600x600    1600   600    1   102      50.79    81.4
92   1600x600    1600   600    2   102      50.79    81.4
93   1600x600    1600   600    4   102      50.79    81.4
94   3200x2400   1600   1200   1   120      60.00    49.0
95   3200x2400   1600   1200   2   120      59.76    48.8
96    576x424     576   424    1    30      40.32    90.4
97    576x424     576   424    2    30      40.32    90.4
98    576x424     576   424    4    30      40.32    90.4
99    576x424     576   424    8    30      40.32    90.4
100   576x424     576   424   15    54      36.68    82.3
102  1600x1200   1600   1200   1   120      60.00    49.0
103  1600x1200   1600   1200   2   120      59.76    48.8
104  1600x1200   1600   600    4    96      47.80    76.6
105  1600x1200    800   600    8    60      54.74    87.0
107  1440x1080   1440   1088   1   120      64.93    58.0
108  1440x1080   1440   1088   2   120      64.93    58.0
109  1440x1080   1440   544    4    96      51.94    90.2
110  1440x1080    720   544    8    54      53.57    93.0
112  1024x768    1024   768    1    84      58.98    74.0
113  1024x768    1024   768    2    84      58.98    74.0
114  1024x768    1024   768    4    84      58.98    74.0
115  1024x768    1024   384    8    60      46.01   110.8
116  1024x768     512   384   15    60      46.01   110.8
117  1152x848    1152   848    1    90      61.81    70.3
118  1152x848    1152   848    2    90      61.81    70.3
119  1152x848    1152   848    4    90      61.81    70.3
120  1152x848    1152   424    8    66      46.08   101.2
121  1152x848     576   424   15    60      41.89    92.1
122  1280x1024   1280   1024   1   114      63.33    60.0
123  1280x1024   1280   1024   2   114      63.33    60.0
124  1280x1024   1280   512    4    84      47.51    87.5
125  1280x1024    640   512    8    42      50.00    93.6
126  1280x1024    640   256   15    48      28.98   104.2

Note: Where the "Logical resolution" is greater than the "Physical resolution", the MODE definition is offering a scaled resolution to provide the same workspace area with higher bpp, but at a lower resolution, in order to fit into the 480kb memory limit for RISC OS 3.1/VIDC1 computers.

It's interesting to note that several of these iSV MODE definitions differ from the default ColourCard AcornMulti or Taxan795 definitions, with some of the iSV definitions being closer to VESA standards. For example, my LCD can lock onto the iSV definitions for the 1024x768, 1152x848 and 1280x1024 modes, however it will only display 1024x768 from the default Taxan795 definitions and it won't display any of the AcornMulti definitions at all.

RobC
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Re: ColourCard (Gold) on the Archimedes

Postby RobC » Tue Aug 08, 2017 11:09 am

They all check out on my machine - only difference is that my monitor always rounds down whereas you correctly round up when required. (Where the 1bpp/2bpp/4bpp/8bpp modes formed a set with the same rates, I only checked the first one.)

Strangely, my monitor won't report the line and frame rate for modes 65, 79 and 126. It is happy to display them though and the ColourCard utility reports the same frame rate as you calculated.

steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Tue Aug 08, 2017 10:59 pm

RobC wrote:They all check out on my machine - only difference is that my monitor always rounds down whereas you correctly round up when required. (Where the 1bpp/2bpp/4bpp/8bpp modes formed a set with the same rates, I only checked the first one.)

Strangely, my monitor won't report the line and frame rate for modes 65, 79 and 126. It is happy to display them though and the ColourCard utility reports the same frame rate as you calculated.

Thanks Rob!

And those three 15bpp modes have very high frame rate >100Hz, coupled with low vertical resolution. I vaguely recall my old Sony CRT monitor from the mid-90's wouldn't display OSD messages once the frame rate got too high and vertical resolution too low... possibly something similar here.

steve3000
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Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Tue Aug 08, 2017 11:21 pm

And here are the default ColourCard Gold mode definitions for "high-end"-monitors, provided in the "Taxan795" module:

Code: Select all

MODE    Physical   bpp   Video    Hfreq    FPS
no.     X     Y          (MHz)    (kHz)    (Hz)
88      512   511    4    24      25.42    81.4
89      512   511    8    24      25.42    81.4
90      768   575    4    24      25.42    81.4
91      768   575    8    24      25.42    81.4
92      640   256    1    30      32.60   114.4
93      640   256    2    30      32.60   114.4
94      640   256    4    30      32.60   114.4
95      640   256    8    30      32.60   114.4
96      640   512    1    36      42.85    80.3
97      640   512    2    36      42.85    80.3
98      640   512    4    36      42.85    80.3
99      640   512    8    36      42.85    80.3
100     800   600    1    60      54.74    87.0
101     800   600    2    60      54.74    87.0
102     800   600    4    60      54.74    87.0
103     800   600    8    60      54.74    87.0
104     640   256   15    48      30.00   109.0
105     800   304   15    60      30.48    94.4
106     512   256   15    42      32.20   117.1
107     576   424   15    54      35.90    81.0
108    1152   424    1    54      36.88    82.7
109    1152   424    2    54      36.88    82.7
110    1152   424    4    54      36.88    82.7
111    1152   424    8    54      36.88    82.7
112    1024   768    1    84      58.98    74.0
113    1024   768    2    84      58.98    74.0
114    1024   768    4    84      58.98    74.0
115    1280   512    4    72      43.68    81.5
116    1440   544    4    90      47.26    83.2
117    1600   600    4    90      43.26    69.3
118    1280   1024   2   108      61.64    58.4
119    1440   1080   2   120      61.22    55.1
120    1152   848    1    90      56.25    64.0
121    1152   848    2    90      56.25    64.0
122    1152   848    4    90      56.25    64.0
123     640   480    8    36      42.85    85.7

Note: On the ColourCard Gold, the default 15bpp MODEs (104-107) are provided in a separate module called "Taxan795_16".

RobC
Posts: 1729
Joined: Sat Sep 01, 2007 9:41 pm

Re: ColourCard (Gold) on the Archimedes

Postby RobC » Wed Aug 09, 2017 8:04 am

steve3000 wrote:And those three 15bpp modes have very high frame rate >100Hz, coupled with low vertical resolution. I vaguely recall my old Sony CRT monitor from the mid-90's wouldn't display OSD messages once the frame rate got too high and vertical resolution too low... possibly something similar here.

My monitor is a Dell but has a "Trinitron" label so it may well be a Sony underneath.

steve3000
Posts: 1690
Joined: Sun Nov 25, 2012 12:43 am

Re: ColourCard (Gold) on the Archimedes

Postby steve3000 » Sun Aug 13, 2017 10:15 am

And finally, here are the default ColourCard Gold mode definitions for multiscan monitors, provided in the "AcornMulti" module:

Code: Select all

MODE    Physical   bpp   Video    Hfreq    FPS
no.     X     Y          (MHz)    (kHz)    (Hz)
88      512   511    4    24      25.42    81.4
89      512   511    8    24      25.42    81.4
90      768   575    4    24      25.42    81.4
91      768   575    8    24      25.42    81.4
92      640   256    1    24      27.52    99.4
93      640   256    2    24      27.52    99.4
94      640   256    4    24      27.52    99.4
95      640   256    8    24      27.52    99.4
96      640   512    1    30      34.40    64.5
97      640   512    2    30      34.40    64.5
98      640   512    4    30      34.40    64.5
99      640   512    8    30      34.40    64.5
100     800   600    1    42      40.07    64.4
101     800   600    2    42      40.07    64.4
102     800   600    4    42      40.07    64.4
103     800   600    8    42      40.07    64.4
104     640   256   15    36      21.02    76.5
105     800   304   15    48      24.00    73.2
106     512   256   15    30      22.59    81.0
107     576   424   15    48      32.25    72.8
108    1152   424    1    48      31.41    70.8
109    1152   424    2    48      31.41    70.8
110    1152   424    4    48      31.41    70.8
111    1152   424    8    48      31.41    70.8
112    1024   768    1    54      40.66    51.4
113    1024   768    2    54      40.66    51.4
114    1024   768    4    54      40.66    51.4
115    1280   512    4    60      34.72    65.0
116    1440   544    4    66      35.86    63.4
117    1600   600    4    78      38.69    62.1
118     960   720    2    54      40.66    54.7
119     960   720    4    54      40.66    54.7
123     640   480    8    30      36.05    71.8

Note: On the ColourCard Gold, the default 15bpp MODEs (104-107) are provided in a separate module called "AcornMulti_16".


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