27 October 2020, 20:59 | #4141 |
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Ok, both the K1/M1 and the Apocalypse/Ragnarok show the same problem with the Prometheus: A response time of 45 milliseconds instead of 250 microseconds.
I need to see what the issue is. Maybe contact the developer of the Prometheus. |
28 October 2020, 13:08 | #4142 |
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@BULI could you contact the man to see how I can best contact him? :-)
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30 October 2020, 11:53 | #4143 |
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some cooling again
now on notebook style, hot air directly to outside. |
31 October 2020, 00:46 | #4144 |
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31 October 2020, 10:25 | #4145 |
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Yes I did it to make it wider.
I did not changed or touched cards.only buy 4 male and 4 female connector. With this connectors I made 4 connector. 1 side is male other side is female so I have a space for fan. |
31 October 2020, 20:25 | #4146 |
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And I made auto aga/rtg switch with pic16f628A. Works great with powerpc.library
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31 October 2020, 23:10 | #4147 |
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Upgrade the PPC750FX to PPC750GX@1GHz, then you can have a unicorn. You get double the L2 cache and then we'll know if it works.
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31 October 2020, 23:18 | #4148 |
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you mixed my mind. Pin and voltage compatible? Hmm I will look
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01 November 2020, 08:18 | #4149 |
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01 November 2020, 08:26 | #4150 |
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I released. It is in my topic inside .rar file.
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03 November 2020, 12:41 | #4151 |
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04 November 2020, 15:26 | #4152 |
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04 November 2020, 15:33 | #4153 |
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Message to the Prometheus HW guy:
Hi, I am trying to write a driver for the prometheus PCI bridge (or actually the firestorm version with the E3B firmware) and I notice a very long delay from PCI interrupt to INT2 (or a wrong one). The mediator is in the range of 350 microseconds that I can handle a PCI interrupt on the Amiga side. For the Firestorm it seems to be 91 milliseconds. I even hacked the VBInt Prometheus.card interrupt to add a counter and also here. 2100 counts in 200 seconds (approx) which is 11 Hz or 91 ms. I would expect 50 or 60Hz. Is this normal? Is this a Prometheus error? Is this a Firestorm firmware error? I heard you are busy and that it was long ago (20 years), but I hope you can shine a light on which way to look. Or if this is normal behaviour, to sadly give up the project (PowerPC cards for the Firestorm). Regards, |
04 November 2020, 17:07 | #4154 |
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I am guessing that none of the PCI interrupt get through. The 11Hz stuff seems to come from the ciaa.resource.
A quick look to the ROM code (https://eab.abime.net/showthread.php?t=62830&page=3) seems to indicate that this interrupt always sets the Z flag so falls through to the next one in the server chain. Which is my case it the VBI Prometheus.card. If I copy stuff (SCSI INT2) then the PPC is much faster to react. (as the SCSI interrupt prio is below the PPC and VBI prometheus.card interrupt) |
04 November 2020, 18:51 | #4155 |
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Have put some questions out at different HW/SW people. Let's see what comes of it.
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04 November 2020, 21:53 | #4156 |
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Found the issue :-)
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04 November 2020, 22:02 | #4157 |
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04 November 2020, 22:03 | #4158 |
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04 November 2020, 22:42 | #4159 |
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Also Warp3D now running
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04 November 2020, 23:17 | #4160 |
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